This Chapter provides definitions for the use classifications established in Part 2 (Zoning District Regulations and Development Standards). The use classifications are organized in the following general categories: accessory, commercial, industrial, public and semi-public, residential, and temporary. If a specific land use or activity is not listed it is at the discretion of the Zoning Administrator to determine which classification shall apply. Use classifications not listed are prohibited unless authorized by Zoning Administrator.
(Ord. 978, 11/17/2025)
Adult business.
An establishment or concern which, as a regular and substantial course of conduct, offers, sells, or distributes adult-oriented merchandise, or which offers to its patrons materials, products, merchandise, services, entertainment or performances that depict, describe, or relate to specified sexual activities: human genitals in a state of sexual stimulation or arousal; acts of human masturbation, sexual intercourse, oral copulation, or sodomy; fondling or other erotic touching of human genitals, pubic region, buttocks, or female breasts. See Chapter 18.60 (Adult Businesses).
Ambulance service.
Provision of emergency medical care or transportation, including incidental storage and maintenance of vehicles.
Animal sales and services.
1. 
Animal boarding.
Provision of shelter and care for small animals on a commercial basis and large animals on a commercial or noncommercial basis. This classification includes activities such as feeding, exercising, grooming, and incidental medical care.
2. 
Animal clinic.
Facility which provides grooming, training or other services to animals, including veterinary services on an outpatient basis with no overnight boarding.
3. 
Animal day care.
An establishment that provides care for two or more small animals on a commercial basis, primarily within an enclosed building, with no overnight boarding.
4. 
Animal grooming.
Provision of bathing and trimming services for small animals on a commercial basis. This classification includes boarding of domestic animals for a maximum period of 48 hours.
5. 
Animal hospital.
An establishment where small animals receive medical and surgical treatment, including grooming and boarding of animals for no more than 30 days if incidental to the hospital use and limited to animals receiving medical care.
6. 
Animals: retail sales.
Retail sales and boarding of small animals, provided such activities take place entirely within an enclosed building. This classification includes grooming if incidental to the retail use.
7. 
Riding academy.
An establishment offering facilities for instruction in horseback riding, including rings, stables, and exercise areas.
Artists' studio.
Workspace for artists and artisans, including individuals practicing one of the fine arts or performing arts, or skilled in an applied art or craft.
Automobile maintenance, limited.
An establishment engaged in the limited maintenance of automobiles, including, but not limited to, the replacement and refurbishment of motor vehicle fluids (excluding fuel), chassis lubrication, minor tune-ups, smog inspection, and window tint installation, or other similar maintenance of automobiles and light vehicles, excluding washing of the vehicle, waxing, and other cleaning or surface treatment of the vehicle, and those services described under the "automobile, vehicle and equipment repair" use classification.
Automobile service station.
An establishment engaged in the retail sale of gas or diesel fuel, lubricants, parts, and accessories. This classification includes incidental sales of retail products. This also includes maintenance and repair of automobiles when performed in conjunction with the sale of gas or diesel fuel and vehicle washing but excludes body and fender work or repair of heavy trucks or vehicles.
Automobile, vehicle/equipment broker.
An office use providing assistance to third parties seeking to buy or sell vehicles or equipment. This classification does not include on-site storage, display or maintenance of vehicles.
Automobile, vehicle/equipment repair.
Repair of automobiles, trucks, motorcycles, motor homes or recreational vehicles, or boats, including the sale, installation, and servicing of related equipment and parts. This classification includes auto repair shop, wheel and brake shop, and tire sales and installation, but excludes vehicle dismantling or salvage and tire retreading or recapping.
• With body and fender work. Automobile, vehicle/equipment repair establishments that includes repair of body and fender work.
Automobile, vehicle/equipment sales and rentals.
Sale or rental of automobiles, motorcycles, trucks, tractors, construction or agricultural equipment, mobile homes, boats and similar equipment, including storage, incidental repair and maintenance, and other activities accessory to the primary automobile vehicle/equipment sales and rentals, including but not limited to wholesale vehicle sales, unless such accessory uses are expressly limited or prohibited by the terms of the approval issued for the use.
Automobile, vehicle/equipment wholesaler.
Wholesaler of automobiles, motorcycles, trucks, tractors, construction or agricultural equipment, mobile homes, boats and similar equipment, including on-site storage and incidental maintenance.
Automobile washing and exterior protection.
Washing, waxing, or cleaning of automobiles or similar light vehicles and the installation of exterior body wraps, coating and protective film, excluding exterior paint.
Banks and savings and loans.
A financial institution that provides retail banking services to individuals and businesses. This classification includes only those institutions engaged in the on-site circulation of money, including businesses offering check-cashing facilities.
•With drive-up service. Institutions providing services accessible to persons who remain in their automobiles.
Building materials and services.
Retailing, wholesaling, or rental of building supplies or equipment. This classification includes a lumber yard, tool and equipment sales or rental establishment, and building contractors' yard, but excludes an establishment devoted exclusively to retail sales of paint and hardware and activities classified under vehicle/equipment sales and services, including vehicle towing services.
Cannabis retailer.
A facility or premises located in the city where cannabis or cannabis products, in any amount or form, either individually or in combination, are offered or provided for retail sale or other sales or transfer to consumers. A cannabis retailer includes an establishment that delivers cannabis as part of a retail sale. The term "cannabis retailer" includes the following subtypes:
1. 
Cannabis retailer, medical.
A cannabis retailer selling medicinal cannabis and medicinal cannabis products to qualified patients with valid physicians' recommendations, persons with an identification card, and primary caregivers, as each is defined in Health and Safety Code Section 11362.7, as amended. A medical cannabis retailer includes a medical marijuana dispensary.
2. 
Cannabis retailer, adult-use.
A cannabis retailer selling adult-use cannabis and cannabis products for adults 21 years of age and over.
Cardroom.
A gaming club as defined in Business and Professions Code Section 19802.
Catering services.
Preparation and delivery of food and beverages for off-site consumption without provision for on-site pickup or consumption. (See also "Eating and drinking establishment.")
Commercial filming.
Commercial motion picture or video photography at the same location for more than six days per quarter of a calendar year.
Commercial parking facility.
Lot offering parking to the public for a fee.
Commercial recreation and entertainment.
Provision of participant or spectator recreation or entertainment. This classification includes a bingo parlor, bowling alley, billiard parlor, poolroom, ice/roller skating rink, scale-model course, tennis/racquetball court, croquet court, swim club, pinball arcade or electronic games center, and similar uses.
Communications facility.
Broadcasting, recording, and other communication services accomplished through electronic or telephonic mechanisms but excluding major utilities. This classification includes radio, television, or recording studios; telephone switching centers; and data centers.
Eating and drinking establishment.
Business serving prepared food or beverages for consumption on or off the premises. Typical uses include, but are not limited to, restaurants, fast food establishments, bars, coffee houses, ice cream/yogurt establishments, and juice bars.
1. 
With drive-through service.
Service from a building to persons in vehicles through an outdoor service window.
2. 
With live entertainment/dancing inside building.
See "Live entertainment."
3. 
With outdoor seating.
Eating and drinking establishments with seating for patrons outside the building.
Equipment and appliance maintenance and repair services.
An establishment providing repair services for personal items and small equipment, such as electronics, appliances, and office machines repair. This classification excludes maintenance and repair of vehicles. (See "Automobile, vehicle/equipment repair.")
Firearm sales.
The sale, transfer, lease, or offer for sale or lease of a firearm. For purposes of this chapter, firearm sales shall include sale of ammunition, and the terms "firearm" and "ammunition" shall have the same meanings as set forth in Section 9.35.020 of the Municipal Code. See also "Retail sales."
Fitness facility.
An establishment providing multiple types of exercise and physical conditioning services.
Food and beverage sales.
Retail sales of food and beverages for off-site preparation and consumption. Typical uses include a supermarket, grocery, convenience store, liquor store, or delicatessen. Establishments at which 20% or more of the transactions are sales of prepared food for on-site or take-out consumption shall be classified as "catering services" or "eating and drinking establishments."
Funeral and interment services.
An establishment primarily engaged in the provision of services involving the care, preparation, or disposition of human dead. Typical uses include a crematory, columbarium, mausoleum, or mortuary.
Horticulture, limited.
The raising of vegetables, flowers, ornamental trees, and shrubs as a commercial enterprise. "Horticulture" does not include the planting, growing, harvesting, drying, curing, grading, or trimming of cannabis, as defined in California Health and Safety Code Section 11018.
Hotel.
An establishment offering transient lodging on a less than weekly basis where immediate access to rooms is from a fully enclosed area not directly accessible from parking areas on the lot and providing additional services, such as conference and meeting rooms, restaurant, bar, or recreation facilities.
Laboratory.
An establishment providing medical or dental laboratory services (including specimen collection facilities) or an establishment with less than 2,000 square feet providing photographic, analytical, or testing services. Other laboratories are classified as "industry, limited."
Live entertainment.
Live performance for the purpose of amusing a guest or patron, on a regular scheduled basis, regardless of whether the performers are compensated.
1. 
Type A.
Does not include sound amplification and does not occur between 10:00 p.m. and 9:00 a.m.
2. 
Type B.
Includes sound amplification or occurs between the hours of 10:00 p.m. and 9:00 a.m.
3. 
Type C.
Nightclub or any other commercial establishment with dancing or musical entertainment as the primary use, with food and drink service as the ancillary use.
Maintenance and repair services.
An establishment providing off-site repair services for personal items and small equipment, such as appliances and office machines repair, or building maintenance services. This classification excludes maintenance and repair of vehicles; see "Automobile, vehicle/equipment repair."
Maintenance services establishment.
An office establishment providing maintenance and repair services for residential and commercial properties, including businesses such as tree maintenance, pool maintenance, pest extermination services and similar uses. This classification excludes maintenance and repair of vehicles. (See "Automobile, vehicle and equipment repair.")
Motel.
An establishment offering transient lodging on a less than weekly basis primarily for automobile travelers where a majority of the sleeping units have access directly from parking areas. This classification includes a motor lodge and tourist court.
Nursery.
An establishment primarily engaged in the retail sale of plants grown elsewhere. Merchandise other than plants is kept within an enclosed building or a fully screened enclosure, and compost, mulch, soil additives, and fertilizer of any type are stored and sold in package form only.
Office, general.
Offices of firms or organizations providing professional, executive, management, or administrative services, such as architectural, computer software consulting, data management, engineering, interior design, graphic design, real estate, insurance, investment, law office, or bail bonds. This classification excludes banks and savings and loan associations.
Office, medical.
Offices for a physician, dentist, medical practitioner, psychiatrist, psychologist, acupuncturist, optometrist, chiropractor, or other State of California Medical Board licensed physician or surgeon, including (1) medical/dental laboratories incidental to the medical office use and (2) nonmedical counseling uses.
Pawn shop.
An establishment engaged in the buying or selling of new or secondhand merchandise and offering loans in exchange for personal property.
Personal improvement service.
Provision of instructional, educational, or training services or facilities, including photography, fine arts, crafts, dance or music studio, singular specialized workout studios (but not including fitness facilities), driving school, diet center, reducing salon, and similar uses.
Personal services.
Provision of recurring services of a personal nature. This classification includes a barber or beauty shop, massage, acupressure, tattoo, tanning, seamstress, tailor, shoe repair, dry cleaning agency (excluding dry cleaning plants), photocopying, Internet access facilities (without food or drink service), self-service laundry, and similar uses.
Pharmacy.
An establishment where prescription drugs and medicines are sold and dispensed.
Research and development services.
An establishment primarily engaged in industrial or scientific research, including limited product testing. This classification includes electronics research firms and pharmaceutical research laboratories, but excludes manufacturing, except of prototypes, or medical testing and analysis.
Retail sales.
An establishment engaged in retail sales of goods, including the retail sale of merchandise not specifically listed under another use classification established in this Chapter. This classification includes, but is not limited to, a department store, clothing store, secondhand store, furniture store, and business retailing goods such as: toys, hobby materials, groceries, hand-crafted items, jewelry, cameras, photographic supplies, electronic equipment, records, sporting goods, kitchen utensils, hardware, appliances, art, antiques, art supplies and services, baseball cards, coins and other collectibles (e.g., cards, comics), comics, paint and wallpaper, carpeting and floor covering, medical supplies, office supplies, bicycles, and new automotive parts and accessories (including installation, but excluding service activities).
Theater.
An establishment providing facilities for motion pictures or dramatic or musical performances and concerts.
Travel services.
An establishment providing travel information and reservations to individuals and businesses. This classification excludes car rental agencies.
(Ord. 978, 11/17/2025)
Fuel storage and distribution.
Establishment engaged in storage and bulk distribution of petroleum-based fuels, including gasoline and diesel fuel and natural gas. This classification excludes automobile service stations.
Industry, custom.
Establishment primarily engaged in on-site production of goods by hand manufacturing involving the use of hand tools and small-scale equipment.
1. 
Small-scale.
Includes mechanical equipment not exceeding two horsepower or a single kiln not exceeding eight kilowatts and the incidental direct sale to consumers of only those goods produced on site. Typical uses include custom bookbinding, ceramic studios, candle-making shops, and custom jewelry manufacture.
2. 
Artisan/custom product.
An establishment that manufactures and/or assembles small products primarily by hand, including jewelry, pottery, and other ceramics, as well as small glass and metal art and craft products, where any retail sales are incidental to the manufacturing activity.
Industry, limited.
Manufacturing of finished parts or products, primarily from previously prepared materials; and provision of industrial services; both within an enclosed building. This classification includes bakeries, breweries, dry cleaning plants, printing, and businesses engaged in processing, fabrication, assembly, treatment, and packaging, but excludes basic industrial processing from raw materials, food processing, and vehicle/equipment services.
• Small-scale. Limited to a maximum gross floor area of 5,000 square feet.
Research and development industry.
An establishment primarily engaged in the research, development, and controlled production of high-technology electronic, industrial, or scientific products or commodities for sale. This classification also includes uses such as a biotechnology firm, manufacturer of nontoxic computer components, and uses involving personal fitness science and technology.
Vehicle storage facility.
Facilities for transportation vehicles (taxi, limousine, bus) including storage yards with related office, dispatch, and maintenance facilities. This includes storage of parking tow-aways, impound yard, and storage lot for automobiles, trucks, buses, and recreational vehicles.
Warehousing and storage, limited.
Provision of storage space for household or commercial goods within an enclosed building without direct public access to individual storage spaces. This classification excludes wholesale distribution and storage, and vehicle storage.
Wholesale distribution and storage.
Establishment engaged in bulk sales of goods primarily to other vendors, with distribution and storage facilities without direct public access.
(Ord. 978, 11/17/2025)
Cemetery.
Land used for the burial of the dead and dedicated for cemetery purposes, including columbariums, crematories, mausoleums, and mortuaries when operated in conjunction with and within the boundaries of the cemetery.
Community center.
A publicly owned facility used for meeting, recreational, or social events.
Cultural institution.
Public or nonprofit institutions displaying or preserving objects of interest in one or more of the arts or sciences. This classification includes libraries, museums, and art galleries.
Day care, general.
Provision of nonmedical care for more than 14 persons on a less than 24-hour basis. This classification includes nursery schools, preschools, and day care centers for children. (Government Code Sections 65915(h)(4), 65917.5(a)(1)).
Emergency medical care facility.
A healthcare establishment that provides immediate medical treatment and care to individuals suffering from urgent, acute illnesses or injuries that require prompt attention. These facilities operate on a 24-hour basis, offering services such as emergency diagnosis, stabilization, and, when necessary, immediate interventions to prevent the deterioration of health. An emergency medical care facility may include, but is not limited to, emergency rooms, urgent care centers, trauma centers, and other specialized emergency care units. These facilities are staffed by licensed healthcare professionals, including physicians, nurses, and other medical personnel trained in emergency medicine.
Government office.
Administrative, clerical, or public contact office of a government agency, including a postal facility, together with incidental storage and maintenance of vehicles.
Government maintenance and service facility.
A Government facility providing maintenance and repair services for vehicles and equipment and areas for storage of equipment and supplies. This classification includes corporation yards, equipment service centers, and similar facilities.
Park and recreational facility.
Noncommercial park, playground, recreation facility, open space, commercial tennis/swimming club, golf course, driving range, or similar facility.
Public safety facility.
A facility that provides public safety and emergency services, including, but not limited to, police and fire protection, whether provided by a public entity or by a private entity under contract to a public entity.
• Offender rehabilitation services. Establishments primarily engaged in providing post-conviction and/or post-incarceration follow-up services to individuals and/or groups, including, but not limited to: social services, counseling, monitoring, compliance verification, testing, referrals, and/or other similar follow-up services.
Place of assembly.
A facility intended for public or private assembly and meetings, including but not limited to civic auditoriums and theatres, banquet halls, community and civic centers, conference and convention facilities, meeting halls for clubs and other membership organizations, religious institutions and other places of worship.
Religious institution.
A facility for religious worship and incidental religious education, but not including a private school. Falls under the broader land use classification of "Place of Assembly." See definition for "Place of assembly."
Residential Care facility, large, licensed.
Any one of the following residential or nonresidential care facilities, which serves seven or more residents (or clients):
1. 
A health facility,
as defined at Health and Safety Code Section 1250, including general acute care hospital; acute psychiatric hospital; skilled nursing facility; intermediate care facility; intermediate care facility/developmentally disabled – rehabilitative; special hospital; intermediate care facility/developmentally disabled; intermediate care facility/developmentally disabled – nursing; congregate living health facility; correctional treatment center (including in-patient health services and not including facilities providing offender rehabilitation services); nursing facility; and intermediate care facility/developmentally disabled – continuous nursing.
2. 
A community care facility,
as defined at Health and Safety Code Section 1502, including: residential facility; adult day program; therapeutic day services facility; foster family agency; foster family home; small family home; social rehabilitation facility; community treatment facility; full-service adoption agency; noncustodial adoption agency.
3. 
A residential care facility,
as defined at Health and Safety Code Section 1568.01 as a residential care facility for persons with chronic, life-threatening illnesses who are 18 years of age or older, or are emancipated minors, and for family units.
4. 
A residential care facility for the elderly,
as defined at Health and Safety Code Section 1569.2(o) as a housing arrangement chosen voluntarily by persons 60 years of age or over (or their authorized representative) where varying levels and intensities of care and supervision, protective supervision, or personal care are provided based on their varying needs.
5. 
A pediatric day health and respite care facility,
as defined at Health and Safety Code Section 1760.2 as a facility which provides an organized program of therapeutic social and day health activities and services and limited 24-hour inpatient respite care to medically fragile children 21 years of age or younger, including terminally ill and technology dependent children.
6. 
An alcoholism or drug abuse recovery or treatment facility,
as defined at Health and Safety Code Section 11834.02, licensed by the State.
Residential Care facility, large, unlicensed.
A residential facility, not licensed by the State, in which seven or more individuals with a disability reside who are not living together as a family (as defined) and in which every person residing in the facility is an individual with a disability (except the licensee, members of the licensee's family, or persons employed as facility staff).
School.
1. 
School, college and university.
A public or private post-secondary institution for higher learning that grants associate or bachelor's degrees and may also have research facility and/or professional schools that grant master and doctoral degrees. This may also include community colleges that grant associate or bachelor's degrees or certificates of completion in business or technical fields. These institutions require at least a high school diploma or equivalent general academic training for admission. Includes community colleges, public or private colleges and universities, and technical schools.
2. 
School, private
Privately owned and operated elementary, middle, secondary, or high school, or other institution providing academic instruction for students from kindergarten through 12th grade in compliance with the California Education Code.
3. 
School, technical, trade and vocational.
A public or private post-secondary school providing occupational, job training, or recreational activities. Recreational activities include music, dance, or martial arts, or art lessons.
Senior housing.
Housing that is available only to households in which the head of the household is 55 years of age or older, and which is not a residential care facility (small or large) as defined in this Chapter.
Utilities, major.
Generating plant; electrical substation; above-ground electrical transmission line; switching building; refuse collection and transfer station; processing, recycling or disposal facility; water reservoir; flood control or drainage facility; water or wastewater treatment plant; transportation or communications facility (other than a communication facility as defined in this Chapter); and similar facility of a public agency or public utility.
Utilities, minor.
Utility facilities that are necessary to support established uses and involve only minor structures such as electrical distribution lines and underground water and sewer lines, and small recycling collection facilities.
Wireless telecommunications facility.
A facility that may include but is not limited to a support structure and attached antennas that sends and/or receives radio frequency signals. This includes antennas and all types of equipment for the transmission or receipt of such signals; telecommunications towers or similar structures built to support such equipment, wall-mounted facilities, microwave transmitting and receiving equipment, equipment cabinets and all other related accessory equipment.
(Ord. 978, 11/17/2025)
Accessory dwelling unit.
An attached or a detached residential dwelling unit which provides complete independent living facilities for one or more persons. It shall include permanent provisions for living, sleeping, eating, cooking, and sanitation on the same parcel as the primary dwelling unit is situated. An accessory dwelling unit also includes: (1) an efficiency unit, as defined in Health and Safety Code Section 17958.1, and (2) a manufactured home, as defined in Health and Safety Code Section 18007. See Section 18.15.050 (Accessory Dwelling Units (ADU and JADU)).
Accessory dwelling unit, junior.
A unit that is no more than 500 square feet in size and contained entirely within an existing single-family structure. A junior accessory dwelling unit may include separate sanitation facilities or may share sanitation facilities with the existing structure. See Section 18.15.050 (Accessory Dwelling Units (ADU and JADU)).
Bed and breakfast.
An establishment offering lodging (with or without incidental meal and/or beverage service) in a single-family residential building and in conjunction with a single-family residential use, for short-term stays of less than 30 consecutive calendar days.
Boarding and lodging.
The renting of a room or rooms within an existing single-family dwelling where: (1) a bedroom or bedrooms are rented, with a separate rental agreement for each room, not for the entire dwelling; (2) for a minimum of 30 consecutive calendar days; (3) with the common use of kitchen facilities; and (4) those occupying the bedroom or bedrooms do not function as a family as defined in Section 18.215.060 ("F" Definitions).
Emergency shelter.
Temporary housing, including interim intervention facilities (i.e., navigation centers, bridge housing, respite or recuperative care), with minimal supportive services for displaced persons that is limited to occupancy of six months or less by a homeless person. No individual or household may be denied emergency shelter because of an inability to pay (Health and Safety Code Section 50801(e)).
Employee housing.
Privately owned housing which houses up to six employees in living quarters and is provided in connection with any work, whether rent is involved. Employee housing is subject to the provisions of the Employee Housing Act. In compliance with the Government Code, employee housing, as defined herein, shall be deemed a single family land use and shall be regulated as such for the purposes of this Title.
Employee housing, agricultural.
Housing consisting of no more than 36 beds in a group quarter or 12 units or spaces designed for use by a single family or household, or that is approved in compliance with Government Code Section 17021.8, shall be deemed an agricultural land use for the purposes of this Title.
Family day care home.
A facility that regularly provides care, protection, and supervision for 14 or fewer children, in the provider's own home, for periods of less than 24 hours per day, while the parents or guardians are away, as defined in Health and Safety Code Section 1596.78. A family day care home includes a detached single-family dwelling, a townhouse, a dwelling unit within a dwelling, or a dwelling unit within a multifamily dwelling in which the underlying zoning district allows for residential uses. A family day care home is where the day care provider resides and includes a dwelling that is rented, leased, or owned.
Group residential.
Shared living quarters, in multi-family zoning districts, with or without separate kitchen or bathroom facilities for each room or unit. This classification includes boarding houses, dormitories, and private residential clubs, but excludes care facilities.
Home occupation.
A home occupation is an ongoing activity in a dwelling which provides goods or services where such activity is incidental to the primary use of the dwelling for residential purposes. See also "Cottage food operations."
Low barrier navigation center.
Housing or shelter in which a resident who is homeless or at risk of homelessness may live temporarily while waiting to move into permanent housing.
Mobile or manufactured housing.
A structure intended for human habitation manufactured or constructed under authority of 42 U.S.C. § 5403, Federal Manufactured Home Construction and Safety Standards, or California law (Health and Safety Code Sections 18007 and 18008). The structure is manufactured either in whole or in substantial part at an off-site location, transported to and assembled on-site, and placed on a permanent foundation.
Mobile home park.
Any area of land or property that has at least two mobile homes, manufactured homes, recreational vehicles, and/or lots that are held out for rent or lease.
Multi-family residential.
1. 
Two-Unit Dwelling (Duplex).
A residential building designed to accommodate two separate households/living units. These units are usually side by side, sharing a common wall, or stacked one above the other, with each unit having its own entrance and often its own yard or outdoor space.
2. 
Three-Unit Dwelling (Triplex).
A residential building designed to accommodate three separate households/living units, each with its own entrance and often separate facilities. Triplexes can be arranged in various configurations, such as side-by-side, stacked, or a combination of these layouts.
3. 
Four-Unit Dwelling (Fourplex or Quad).
A residential building designed to accommodate four separate households/living units, each with its own entrance and amenities. These units can be arranged in different layouts, including all on one floor, stacked in two or more levels, or in a combination of these configurations.
4. 
Multi-Unit Dwelling (Over Five Units).
A residential building or complex containing more than five separate living units. This category includes apartment buildings, condominiums, and larger residential complexes with various layouts and shared amenities such as common areas.
Residential care facility, small, licensed.
A facility serving six or fewer residents (not including the licensee or members of the licensee's family or staff) and is licensed by the State. Any combination of two or more residential care facilities that are under the control and management of the same owner, operator, management company, licensee, or any affiliate of them, and are integrated components of one operation, are considered one facility.
Residential care facility, small, unlicensed.
A residential care facility of six or fewer total residents managed under a single operator and designed for short-term stays by each resident as a transition from drug or alcohol rehabilitation or while on parole. Any combination of two or more residential care facilities that are under the control and management of the same owner, operator, management company, licensee, or any affiliate of them, and are integrated components of one operation, are considered one facility.
Senior housing.
Housing that is available only to households in which the head of the household is 55 years of age or older, and which is not a residential care facility as defined in this Section.
Single-room occupancy.
A single-room occupancy facility is a residential building that includes multiple single-room occupancy units. "Single-room occupancy unit" means housing consisting of single-room dwelling units that are the primary residence of their occupant or occupants. If the single-room occupancy housing consists of new construction, conversion of nonresidential space, or reconstruction, the unit must contain either food preparation or sanitary facilities and may contain both. If the single-room occupancy housing consists of acquisition or rehabilitation of an existing residential structure or hotel, neither food preparation nor sanitary facilities are required to be in the unit, but if the units do not contain sanitary facilities, the building must contain sanitary facilities that are shared by tenants.
Single-family residential.
An attached or detached residential building designed to accommodate one household/living unit on a single lot. A single-family residential development may be "attached" to another single-family residential development on an adjacent property as allowed by the Building Code.
Single-family residential with boarder or lodger.
See "Boarding and lodging" in this Section.
Supportive housing.
Housing with no limit on length of stay, that is occupied by the target population, and that is linked to an on-site or off-site service that assists the supportive housing resident in retaining the housing, improving his or her health status, and maximizing his or her ability to live and, when possible, work in the community. "Target population" means persons with low incomes who have one or more disabilities, including mental illness, HIV or AIDS, substance abuse, or other chronic health condition, or individuals eligible for services provided pursuant to the Lanterman Developmental Disabilities Services Act (Division 4.5 (commencing with Section 4500) of the Welfare and Institutions Code) and may include, among other populations, adults, emancipated minors, families with children, elderly persons, young adults aging out of the foster care system, individuals exiting from institutional settings, veterans, and homeless people. Supportive housing is a residential use subject only to the same requirements as apply to other residential dwellings of the same type in the same zoning district.
Transitional housing.
Buildings configured as rental housing developments, but operated under program requirements that require the termination of assistance and recirculating of the assisted unit to another eligible program recipient at a predetermined future point in time that shall be no less than six months from the beginning of the assistance. Transitional housing is a residential use subject only to the same requirements as apply to other residential dwellings of the same type in the same zoning district.
(Ord. 978, 11/17/2025)
Temporary uses are short-term or temporary in nature that are classified separately for purposes of the land use regulations; provided, that the use does not exceed any time limits specified in the Temporary Use Permit as established in Chapter 18.160 (Use Permit, Temporary). If the event takes place partly or wholly on public property, see Chapter 6.20 (Special Event Permit).
Agricultural sales.
The seasonal sales of agricultural or horticultural products, including firewood. Excludes Christmas tree and pumpkins sales, as defined in this Chapter.
Animal shows or sales.
Exhibitions of domestic or large animals. This classification includes animal sales.
Arts and crafts shows, outdoor.
Display and sale of painting, sculpture, hand crafts and similar objects.
Christmas tree sales.
The seasonal display and sale of Christmas trees and Christmas wreaths. Includes preparation of the site, fencing, trailers, tents, necessary storage, equipment, and related accessory services (i.e., netting, baling, flocking).
Civic and community events.
Special events open to the public.
Commercial filming, limited.
Commercial motion picture or video photography at the same location.
Eating and drinking use.
Serving of prepared food or beverages for consumption on or off the premises on a site that is not permanently occupied by, or related to, an existing legally established on-site, eating and drinking establishment.
Farmers' market.
Recurring sales of agricultural, horticultural, and other food products that are seasonal in nature.
Group assembly events.
A non-recurring event intended for the meeting or assembly of a group, club, or membership organization conducted on a site that is not permanently occupied by a place of assembly use.
Live entertainment event.
A non-recurring concert, carnival, circus, fair, or similar event.
Personal property sales.
Sales of personal property by a resident. This classification includes garage sales.
Pumpkin sales.
The seasonal display and sale of pumpkins. Includes preparation of the site, fencing, trailers, tents, necessary storage, and equipment.
Real estate sales.
An on-site office for the marketing, sales or rental of residential, commercial or industrial development. This classification includes "model homes."
Recreational events.
Events featuring sports, exercise, physical play, or competitions.
Retail sales, outdoor.
Retail sales of merchandise in an open or covered outdoor area on the site of a legally established retail business.
Street fair.
Provision of games, eating and drinking facilities, live entertainment, or similar activities not requiring the use of roofed structures.
Swap meet.
Retail sale or exchange of new, hand-crafted, or secondhand merchandise.
Trade fairs.
Display and sale of goods or equipment related to a specific trade or industry.
(Ord. 978, 11/17/2025)
Acre, gross.
A measure of total land area of any lot including future streets, parks, and other land dedications.
Acre, net.
The gross area of a lot excluding:
1. 
Land to be dedicated for required easements for vehicles and rights-of-way, either public or private;
2. 
Land determined to be hazardous and unbuildable; and/or
3. 
Land to be dedicated for schools and parks or other facilities dedicated for public use.
Active frontages.
Building frontages with occupied spaces that encourage engagement between the building tenants and the public realm. Active frontages allow visual or physical access to the active uses within the building from streets, sidewalks, and paseos.
Affordable housing cost.
The maximum cost to rent or purchase a house as defined in Health and Safety Code Section 50052.5 (Government Code Section 65915(d)(1).).
1. 
For extremely low-income households, the product of 30% times 30% of the area median income adjusted for family size appropriate for the unit;
2. 
For very low-income households, the product of 30% times 50% of the area median income adjusted for family size appropriate for the unit;
3. 
For low-income households whose gross incomes exceed the maximum income for very low-income households and do not exceed 70% of the area median income adjusted for family size, the product of 30% times 70% of the area median income adjusted for family size appropriate for the unit. In addition, for any lower income household that has a gross income that equals or exceeds 70% of the area median income adjusted for family size, it shall be optional for any state or local funding agency to require that affordable housing cost not exceed 30% of the gross income of the household;
4. 
For moderate-income households, affordable housing cost shall not be less than 28% of the gross income of the household, nor exceed the product of 35% times 110% of area median income adjusted for family size appropriate for the unit. In addition, for any moderate-income household that has a gross income that exceeds 110% of the area median income adjusted for family size, it shall be optional for any state or local funding agency to require that affordable housing cost not exceed 35% of the gross income of the household.
Affordable units.
Living units that are required to be rented at affordable rents or available at affordable housing costs to specified households.
Alteration.
Any modification, change, or adjustment made to a building or structure that affects its physical dimensions, design, function, or use.
Animal.
1. 
Animal, large domestic.
An animal other than a rooster, a nondomestic animal or a small domestic animal as defined herein, and which is typically kept in a coop, corral, stable, or pen, including but not limited to equine (e.g., horses, donkeys, and llamas), bovine, porcine, and ratite (e.g., ostrich, emu and rhea) species, other hoofed animals (e.g., goats or sheep) and any variety of fowl other than hens, which are considered small domestic animals as defined in this Section.
2. 
Animal, nondomestic.
A wild animal not customarily confined or cultivated by man for domestic or commercial purposes but kept as a pet or for display.
3. 
Animal, small domestic.
A small animal of the type generally accepted as a pet, including dog, cat, rabbit, songbird, fish, and the like, but not including chicken, rooster, duck, goose, pea fowl, goat, sheep, pig, hog, or the like.
Antenna.
Any system of wires, poles, rods, panels, reflecting discs, or similar devices used for the transmission or reception of radio frequency electromagnetic waves when such system is external and attached to the exterior of a structure or a pole.
Area median income (AMI).
The area median income for Contra Costa County as published at Title 25, California Code of Regulations, Section 6932.
Attached, building or structure.
A building or structure that shares a common wall, is physically connected to another building or structure, or two structures that are less than one foot away from each other as measured from the furthest projection on each structure.
Average percent of slope.
The ratio between vertical and horizontal distances expressed in percent; the mathematical expression of which is based upon the formula described below:
Figure 18.215-1
Average Percent of Slope Calculation
S = (I x L x 100)/A
S = Average slope of ground in percent
I = Contoured interval in feet
L = Combined length in feet of all contours on parcel
A = Area of lot in square feet
(Ord. 978, 11/17/2025)
Balcony.
A platform that projects from the wall of a building, typically above the first level, and is surrounded by a rail, balustrade, or parapet.
Base density.
The maximum number of dwelling units on a particular lot of land which complies with the General Plan and all applicable provisions of this Zoning Ordinance.
Basement.
The portion of a building that is completely below grade. If any part of a building story is above grade, it will not be considered a basement. A basement does not count as a story when calculating the "number of stories" for development regulation purposes. However, sub-level floors, including basements, are included in floor area ratio (FAR) calculations. The addition of any access points, as required by the Building Code, does not change the classification of a basement, provided that all other portions of the floor remain below grade.
Blockface.
The properties abutting on one side of a street and lying between the two nearest intersecting or intercepting streets, or nearest intersecting or intercepting street, unsubdivided land, watercourse, or City boundary.
Figure 18.215-2
Blockface
Boarder.
A person who rents a room within a living unit from a landlord.
Breezeway.
A roofed, open-sided passageway connecting two structures, such as a house and a garage.
Building.
Any structure having a roof supported by columns or walls for the housing or enclosure of persons, animals, chattel, or property of any kind.
Building height.
The vertical distance of a building as measured from grade to a base point on the building in compliance with Section 18.55.030 (Height Standards and Exceptions). See definition for "grade."
(Ord. 978, 11/17/2025)
Caretaker's quarters.
A dwelling unit on the site of a non-residential use, occupied by someone employed to care for a property or facility. Caretaker's quarters are meant to serve only as a secondary or accessory use to the existing use on the property.
Collection buildings.
Buildings with a gross floor area of 225 square feet or less used for the deposit and storage of recyclables.
Commercial cannabis use.
Commercial cannabis use means and includes the commercial cultivation, possession, manufacture, distribution, processing, storing, laboratory testing, packaging, labeling, transportation, wholesale or retail delivery, wholesale or retail sale of cannabis and cannabis products, or any combination of such activities, whether or not carried out for profit, and any other activity that requires a license, or may require a license in the future, pursuant to the Medicinal and Adult-Use Cannabis Regulation and Safety Act, California Business and Professions Code, Division 10, Section 26000 et seq. Without limiting the foregoing, the term "commercial cannabis use" also includes a medical marijuana dispensary, a patient collective or patient cooperative operating under the Compassionate Use Act (Health and Safety Code Section 11362.5) and/or the Medical Marijuana Program Act (Health and Safety Code Section 11362.7 et seq.), as each may be amended; a nonprofit licensee under Business and Professions Code Section 26070.5; and a cannabis cooperative association under Business and Professions Code Section 26220 et seq.
Condominium project.
A housing development of two or more units, the interior space of which are individually owned, with the balance of the property owned by the owners of the individual units. See also Civil Code Section 4105.
Construction cost index.
The Engineering News Record San Francisco Building Cost Index. If the index ceases to exist, the City Manager shall submit another cost index which in their judgment is the nearly equivalent to the original index as possible.
Consumer price index.
The U.S. Department of Labor, Bureau of Labor Statistics, Consumer Price Index for all Urban Consumers for the San Francisco, Oakland, San Jose Metropolitan Statistical Area or, if the index is discontinued, a successor index selected by the City Manager.
Container or storage unit.
A container or storage unit includes, but is not limited to, any of the following if 15 cubic yards or larger: a debris or trash box, a cargo or storage container, a construction or transport trailer (when detached from the truck trailer). A container or storage unit is not permanently attached to the ground. A container or storage unit does not include an accessory structure as defined in this Chapter, or a trash container storage unit placed by the disposal company licensed by the City, when that container is used for regular, weekly garbage pick-up.
Cottage food operations.
An enterprise that has not more than $50,000 in gross annual sales; operated by a "cottage food operator" (who operates in his or her private home and owns the operation); and having not more than one full-time equivalent employee, not including a family or household member; that involves preparation of "cottage food products" which are nonhazardous foods such as baked goods without cream or meat fillings; candy; chocolate-covered nonperishable foods; dried fruit; dried pasta; dry baking mixes; fruit pies; granola, cereals and trail mixes; herb blends and dried mole paste; honey; jams, jellies, preserves; nut mixes and nut butters; popcorn; vinegar and mustard; roasted coffee and dried tea; waffle cones and pizelles; other items added by the State Public Health Officer on an approved food products list (Health and Safety Code Section 113758). See also "home occupation."
Coverage, lot or site.
The percentage of a site covered by a building, accessory structure, roof, soffit, trellis, and eave or overhang extending more than two feet from a wall, and by a deck or above ground pool more than 36 inches in height.
Figure 18.215-3
Lot Coverage
Cultural resource.
Improvements, buildings, structures, signs, features, sites, landscapes, trees, or other objects of scientific, aesthetic, educational, cultural, architectural, or historical significance to the citizens of the City, the Diablo Valley, the Northern California region, or the nation which may be eligible for designation or designated and determined to be appropriate for historic preservation by the Architectural Review Commission, or by the City Council on appeal, in compliance with the provisions of the Zoning Ordinance.
(Ord. 978, 11/17/2025)
Daylight plane.
An inclined plane, beginning at a stated height above grade at a side or rear property line, and extending into the site at a stated upward angle to the horizontal, which may limit the height or horizontal extent of structures at any specific point on the site where the daylight plane is more restrictive than the height limit or the minimum yard applicable at such point on the site.
Figure 18.215-4
Daylight Plane
(The diagram is illustrative)
Deck.
A platform, either freestanding or attached to a building, that is supported by pillars or posts (see also "balcony").
Density bonus.
As defined by Government Code Section 65915 et seq.
Density bonus housing agreement.
A legally binding, recorded agreement between an owner/developer and the City to ensure that the requirements of this Zoning Ordinance and State law are satisfied. The agreement, among other things, shall establish the number of target bonus units, their size, location, terms and conditions of affordability, and production schedule. The agreement shall also require management and maintenance of the units. See Section 18.15.110 (Density Bonus).
Density bonus units.
Residential dwelling units allowed to exceed the otherwise allowable maximum residential density for the development site in compliance with the Zoning Ordinance and State law.
Detached, building or structure.
A building or structure shall be considered detached from any other building or structure; provided, the distance is a minimum of one-foot from any wall or projection, measured at the closest point. See definition for the term "attached, building or structure."
Development agreement.
A contract between the City and an applicant for a development project, in compliance with Chapter 18.190 (Development Agreement) and Government Code Section 65864 et seq. A development agreement is intended to provide assurance to the applicant that an approved project may proceed subject to the policies, rules, regulations, and conditions of approval applicable to the project at the time of approval, regardless of any changes to City policies, rules, and regulations after project approval. In return, the City may be assured that the applicant will provide infrastructure and/or pay fees required by a new project.
Development standard.
Any site or construction condition that applies to a residential development pursuant to any ordinance, general plan element, specific plan, or other local condition, law, policy, resolution or regulation.
Driveway.
A paved area on a lot necessary to provide direct access for vehicles between a street and either:
1. 
An area on a residential lot containing four or fewer parking spaces;
2. 
An aisle between spaces in a parking lot;
3. 
A loading berth; or
4. 
A refuse storage area.
(Ord. 978, 11/17/2025)
Electric vehicle (EV) charger.
A device that supplies electric power to charge the battery of an electric vehicle.
Electric vehicle charging space (EV space).
A space intended for charging electric vehicles.
Electric vehicle charging station (EVCS).
One or more electric vehicle charging spaces served by an electric vehicle charger or other charging equipment. Where a multiport electric vehicle charger can simultaneously charge more than one vehicle, the number of electric vehicle charging stations shall be considered equivalent to the number of electric vehicles that can be simultaneously charged.
Environmental impact report (EIR).
An environmental report used to assess the physical characteristics of an area and to determine what effects will result if the area is altered by a proposed action, prepared in compliance with the California Environmental Quality Act (CEQA).
Exterior architectural feature.
The architectural element embodying style, design, general arrangement, and components of all the outer surfaces of an improvement including, but not limited to, the kind, color and texture of the building materials and the type and style of all windows, doors, lights, signs, and other fixtures appurtenant to such improvement.
(Ord. 978, 11/17/2025)
Family.
One or more persons occupying premises and living as a single nonprofit housekeeping unit, as distinguished from a group occupying a boarding or lodging house, hotel, club, or similar dwelling for group use. A family shall not include a fraternal, religious, social, or business group. A family shall be deemed to include domestic worker.
Fence.
A barrier made of wire, wood, metal, masonry, or other material used as a screen or enclosure for a yard, equipment, or open space. It includes a wall, gate, or structure used as a fence. A retaining wall, freestanding (monument) sign, or landscape structure is not considered a fence except for that portion which is used as a fence. See Chapter 18.75 (Fences, Walls, and Screening).
Floor area, gross.
The total area of all floors in a building, excluding basements, as measured to the outside surface of exterior walls or to the centerline of common walls. It excludes any crawl space, area used exclusively for vehicle parking or loading, breezeway, attic without floor, and any open porch, deck, balcony, or terrace.
Floor area, net.
The total area of all floors in a building as measured to the outside surface of exterior walls or to the centerline of common walls. It excludes any crawl space, area used exclusively for vehicle parking or loading, breezeway, attic without floor, and an open porch, deck, balcony or terrace. It also excludes any corridors, hallways, stairways, elevator shafts at each floor level, service and mechanical equipment rooms, and attic areas having a height of more than seven feet, and, in industrial areas, storage sheds with less than 150 square feet of space, bunkers, electrical substations, smoking shelters, instrument shelters, and similar enclosures.
Floor area ratio (FAR).
The gross floor area of a building or buildings on a lot divided by the lot area or site area.
Figure 18.215-5
Floor Area Ratio
(The diagram is illustrative)
For-sale project.
A residential project, or portion thereof, which is intended to be sold to an owner-occupant upon completion.
Frontage types.
1. 
Frontage, building.
The building facade facing a street or public open space.
2. 
Frontage, building.
The building facade facing a street or public open space.
3. 
Frontage, site.
The width of the site along a street or public open space.
Frontage, street.
The property line or part of the site facing a street or public open space. The street frontage is the length of the front lot line or, in the case of a corner lot, the front lot line plus the corner side lot line.
(Ord. 978, 11/17/2025)
General plan.
The City of Pleasant Hill General Plan, including all its elements and all amendments, as adopted by the City Council under the provisions of Government Code Sections 65300 et seq., and referred to in this Zoning Ordinance as the "General Plan."
Grade.
1. 
Grade, average.
The average level on the surface defined as the shortest distance between finished grade at the highest and lowest sides of a structure.
2. 
Grade, existing.
The level of the ground or pavement at a stated location as it exists prior to disturbance in preparation for a project regulated by this chapter.
3. 
Grade, finished.
The lowest point of elevation of the finished surface of the ground, paving or sidewalk within the area between the building and the property line or, when the property line is more than five feet from the building, between the building and a line five feet from the building.
4. 
Grade, street.
The top of the curb, or the top of the edge of the pavement or traveled way where no curb exists.
(Ord. 978, 11/17/2025)
Height.
The vertical dimension measured from finished grade, unless otherwise specified. See "building height" as defined in this Chapter.
Historic district.
Any area containing a concentration of improvements which have a special character, historical interest or aesthetic value, which possess integrity of location, design, setting, materials, workmanship, feeling and association, or which represent one or more architectural periods or styles typical of the history of the City, and that has been designated an historic district.
Housing development project.
Residential construction projects as defined in Government Code Section 65589.5(h)(2).
(Ord. 978, 11/17/2025)
Illumination, direct.
Illumination by means of light that travels directly from its source to the viewer's eye.
Illumination, indirect.
Illumination by means only of light cast upon an opaque surface from a concealed source.
Improved pedestrian connection.
An elevated overhead pedestrian access bridge or sidewalk or below street grade pedestrian access tunnel below finished grade of Interstate 680.
Incentive or concession.
The benefit offered by the City to facilitate construction of eligible affordable housing costs and units as defined by this Chapter. Examples of incentives/concessions include adjustment of development standards, expedited processing of entitlements, relaxation of otherwise applicable entitlement conditions, and provisions for mixed-use activities. See Section 18.15.110 (Density Bonus) and Government Code Section 65915 et seq.
Inclusionary unit.
A dwelling unit reserved for occupancy by a low- or very low-income household (as defined by Health and Safety Code Sections 50079.5 and 50105) with a new residential development.
(Ord. 978, 11/17/2025)
Kitchen.
Any part of a room or structure which is designed, built, used, or intended to be used for the preparation or cooking of food and must contain, at minimum, an oven or stove, a refrigerator, and a sink having a drain outlet of larger than one and one-half inches in diameter. A kitchen may also include a microwave, dishwasher, garbage disposal, or other appliances for cooking, preparing, or storing food. A kitchen does not include bars, butler's pantries, or similar rooms adjacent to or connected with a kitchen.
(Ord. 978, 11/17/2025)
Land use.
The purpose for which a site or structure is arranged, designed, intended, constructed, moved, erected, altered, or enlarged or for which either a site or structure is or may be occupied or maintained.
Landscape.
To plant and maintain some combination of trees, ground cover, shrubs, vines, flowers, or lawn. Required landscaping may include natural features such as existing or imported rock and structural features including fountains, pools, artwork, screens, walls, fences, or benches. A landscaped area may also include a walkway or concrete plaza if it is an integral part of the elements of landscaping described above. Plants on rooftops, porches, or in boxes attached to buildings are not considered landscaping.
Landscaping, interior.
A landscaped area(s) within a defined perimeter of the parking or loading area as shown in Figure 18.215-6, or similar paved area, excluding driveways or walkways providing access to the facility (as applied to parking and loading facilities or to similar paved areas).
Landscaping, perimeter.
A landscaped area adjoining the exterior boundary of a parking or loading area as shown in Figure 18.215-6, or similar paved area, excluding driveways or walkways providing access to the facility (as applied to parking and loading facilities or to similar paved areas).
Figure 18.215-6
Landscaping: Interior/Exterior
Living unit.
One or more rooms designed, occupied or intended for occupancy as separate living quarters, and include a kitchen, sleeping area, and bathroom facilities.
Lot.
A site or parcel of land.
Lot area.
The horizontal area within the property lines excluding public-access corridors, vehicular easements, and areas to be included in future street rights-of-way as established by easement, dedication, or ordinance.
Lot depth.
The horizontal distance from the midpoint of the front lot line to the midpoint of the rear lot line, or to the most distant point on any other lot line where there is no rear lot line.
Lot line types.
1. 
Front lot line.
A lot line abutting the street or easement providing access to the lot. The front lot line of a corner lot is the shortest street line. If the street lines are the same length, any of the street-abutting lot lines may be considered the front lot line, unless one street-abutting lot line results in nonconforming setbacks.
a. 
Flag lots.
The front lot line of a flag lot (see "flag lot" under "lot types") is measured at the point where the "pole" meets the bulk ("flag") of the lot parallel to the rear lot line of the lot adjacent to the pole as shown in Figure 18.215-7 (Flag Lot Front Lot Line).
b. 
Irregular shaped lots.
The front lot line of an irregular shaped lot shall be determined by the Zoning Administrator.
Figure 18.215-7
Flag Lot Front Lot Line
2. 
Interior lot line.
A lot line not abutting a street.
3. 
Rear lot line.
A lot line, not a front lot line, that is parallel or approximately parallel to the front lot line. Where no lot line is within 45 degrees of being parallel to the front lot line, a line 10 feet in length within the lot, parallel to and at the maximum possible distance from the front lot line shall be deemed the rear lot line for the purpose of measuring rear yard depth.
4. 
Side lot line.
A lot line that is not a front lot line or a rear lot line.
5. 
Street lot line.
A lot line, other than the front lot line, abutting a street.
Lot types.
1. 
Corner lot.
A lot bounded by two or more adjacent street lines that have an angle of intersection of not more than 135 degrees on a street or private driveway serving two or more additional properties or dwelling units (not counting accessory dwelling units). The front yard of a corner lot shall adjoin the shortest street property line; provided, that where street property lines are substantially the same length, the Zoning Administrator shall determine the location of the front yard based on existing or proposed access to the principal building on the lot. See Section 18.15.040D (Corner and Double-Frontage Lot Setbacks) for additional development regulations for corner lots.
2. 
Double-frontage lot.
An interior lot having frontage on more than one street. Each frontage from which access is permitted shall be deemed a front lot line. See Section 18.15.040D (Corner and Double-Frontage Lot Setbacks) for additional development regulations for double-frontage lots.
3. 
Flag lot.
A lot with a narrow strip of land, known as the "staff" or "pole," that provides access to the main, larger portion of the lot, which is often referred to as the "flag." The staff portion typically resembles a flagpole and connects the larger, buildable area of the lot to a public street or private road.
4. 
Interior lot.
A lot other than a corner lot.
5. 
Irregular lot.
A lot characterized by boundaries that may have varying lengths, non-parallel sides, or unusual angles, resulting in a form that does not conform to the other lot types defined herein. For the purposes of this Title, the lot lines of an irregular lot shall be determined by the Zoning Administrator.
6. 
Key lot.
A key lot is an interior lot whose front yard abuts the rear yard of a corner lot.
Figure 18.215-8
Lot Types
Lot width.
The average horizontal distance between the side lot lines measured at right angles to the lot depth from the required front yard setback and from the required rear yard setback or from the rearmost point of the lot depth in cases where there is no rear lot line. (See lot depth, lot width diagram.)
Figure 18.215-9
Lot Depth and Width
(The diagram is illustrative)
Low-income household.
A household whose income does not exceed the low-income limits applicable to Contra Costa County, as published and periodically updated by the State Department of Housing and Community Development in compliance with Health and Safety Code Section 50079.5.
Lower income household.
A lower income household as defined in Civil Code Sections 51.3 and 51.12 (Government Code Section 65915(b)(1) and (c)(1), and Health and Safety Code Section 50079.5.).
(Ord. 978, 11/17/2025)
Market rate units.
New living units in residential projects which are not affordable units.
Maximum allowable residential density.
The maximum number of residential units permitted by the General Plan on the date the application is deemed complete. See Government Code Section 65915(o)(6).
Mixed-use.
A type of development where a variety of uses such as office, commercial, institutional, and residential are combined in a single building or on a single site in an integrated project.
Mobile recycling unit.
An automobile, truck, trailer, or van, licensed by the State Department of Motor Vehicles, which is used for the collection of recyclable materials, including the bins, boxes or containers transported by trucks, vans or trailers and used for the collection of recyclable materials.
Moderate-income household.
A household whose income does not exceed the moderate-income limits applicable to Contra Costa County, as published and periodically updated by the State Department of Housing and Community Development in compliance with California Health and Safety Code Section 50079.5 (Government Code Section 65915(c)(2), Health and Safety Code Section 50093).
(Ord. 978, 11/17/2025)
Natural feature.
Any tree, plant life, water feature, or rock outcropping.
Noncommercial message or speech.
Any message that is not commercial speech, which includes but is not limited to, messages concerning political, religious, social, ideological, public services, and informational topics.
Nonconforming sign, legal.
A sign, outdoor advertising structure, or display of any character that was lawfully erected or displayed before the adoption of this Zoning Ordinance, or amendment thereto, but which does not conform with currently applicable requirements prescribed for the zoning district in which the sign is located.
Nonconforming structure, legal.
A structure that was lawfully erected before the adoption of this Zoning Ordinance, or amendment thereto, but which does not conform with the currently applicable provisions and/or development standards established for the zoning district in which the structure is located (e.g., setbacks, structure height, distance between structures).
Nonconforming use, legal.
A use of a structure of land that was lawfully established and maintained before the adoption of this Zoning Ordinance, or amendment thereto, but which does not conform with currently applicable use regulations for which the zoning district in which it is located.
Nonrestricted unit.
All units within a housing development excluding the affordable target units, as defined in this Chapter.
(Ord. 978, 11/17/2025)
Off-street loading facilities.
A site or portion of a site devoted to the loading or unloading of motor vehicles or trailers, including loading berths, aisles, access drives, and landscaped areas.
Open space types.
1. 
Private open space.
An open area outside of a building adjoining and directly accessible to a dwelling unit, reserved for the exclusive use of residents of the dwelling unit and their guests.
2. 
Shared open space.
An open area within a residential development reserved for the exclusive use of residents of the development and their guests.
3. 
Passive Open Space.
An open area outside of a building or structure that is more natural in quality and does not provide facilities or access to users (such as walking paths or seating). Passive open spaces may include, but are not limited to, bioswales, landscaped areas, and natural habitat.
4. 
Active Open Space.
An open space area or recreational area that has any type of user facility (e.g., walking path, benches, restrooms, sports fields or courts). See also "park and recreational facility" definition in Section 18.210.050 (Public and Semi-Public Land Use Classifications).
5. 
Yard.
An open space on the same site as a structure, unoccupied and unobstructed by structures from the ground upward except as otherwise provided in this Chapter, including a front yard, side yard, corner side yard, or rear yard.
Ordinary maintenance and repair.
Any work, for which a Building Permit is not required by law, where the purpose and effect of such work is to correct any deterioration of or damage to a structure or any part thereof and to restore the same to its condition prior to the occurrence of such deterioration or damage. See definition for the term "alteration."
Outdoor storage.
Storage outside of a building of material not intended for immediate sale or exhibition.
Owner.
The person(s) or entity(ies) that hold legal or equitable title to a dwelling or lot.
(Ord. 978, 11/17/2025)
Permitted.
Allowed without a requirement for approval of a Conditional Use Permit or Temporary Use Permit.
Planned development.
A development (other than a community apartment project, a condominium project, or a stock cooperative) having either or both of the following features:
1. 
The common area is owned either by an association or in common by the owners of the separate interests who possess appurtenant rights to the beneficial use and enjoyment of the common area.
2. 
A power exists in the association to enforce an obligation of an owner of a separate interest with respect to the beneficial use and enjoyment of the common area by means of an assessment which may become a lien upon the separate interests in compliance with Civil Code Sections 5650 through 5690.
Porch.
A covered platform at an entrance to a dwelling, or an open or enclosed gallery or room, which is not heated or cooled and is attached to the outside of a building.
Preexisting.
In existence prior to the effective date of this Zoning Ordinance.
Primary street.
A main thoroughfare, including "arterial" through routes and mixed-use, multifunctional right-of-way (at least in part along their length), providing access to properties as well as other amenities.
Processing facility.
A building or enclosed space used for the collection and processing of recyclable material, and/or used motor oil, by such means as flattening, mechanical sorting, compacting, baling, shredding, grinding, crushing, and cleaning.
1. 
A light-processing facility occupies less than 45,000 square feet and includes equipment for baling, briquetting, crushing, compacting, grinding, shredding and sorting of source-separated recyclable materials, except ferrous metals other than food and beverage containers, and repairing of reusable materials.
2. 
A heavy-processing facility is any processing facility other than a light-processing facility.
Project.
Any proposal for new or changed use, or for new construction, alteration, or enlargement of any structure, that is subject to the provisions of this chapter.
Project site.
The specific location on which a development, use, structure, or building is proposed.
Published standards.
The standards for specific income levels for Contra Costa County, as published under Title 25, California Code of Regulations Section 6932.
(Ord. 978, 11/17/2025)
Reasonable accommodation.
Providing individuals with disabilities, or developers of housing for individuals with disabilities, flexibility in the application of land use, zoning and building regulations, policies, practices and procedures or waiving enforcement, if necessary, to ensure equal access to housing for individuals with disabilities in compliance with Chapter 18.135 (Reasonable Accommodation), and State and Federal fair housing laws.
Recreational Vehicle.
In compliance with Health and Safety Section 18010, a motor home, travel trailer, truck camper, or camping trailer, with or without motive power, originally designed for human habitation for recreational, emergency, or other occupancy, which meets all the following criteria:
1. 
It contains less than 320 square feet of internal living room area, excluding built-in equipment, including wardrobe, closets, cabinets, kitchen units or fixtures, and bath or toilet rooms;
2. 
It contains 400 square feet or less of gross area measured at maximum horizontal projections;
3. 
It is built on a single chassis; and
4. 
It is either self-propelled, truck-mounted, or permanently towable on the highways without a towing permit.
Recyclable material.
Reusable material including, but not limited to, metals, glass, plastic and paper which are intended for reuse, remanufacture, or reconstitution for the purpose of using the altered form. Recyclable material does not include refuse or hazardous materials but may include used motor oil.
Recycling facility.
A center for the collection and/or processing of recyclable materials.
Rehabilitation.
Restoring a property to make it usable for modern purposes while preserving its important historical, architectural, and cultural features.
Rental projects.
A residential project, or portion thereof, which is intended to be rented to tenants upon completion.
Resale control.
A resale restriction placed on inclusionary units by which the price of such units and income of the purchaser will be restricted to assure affordability and occupancy by qualifying households and residents.
Residential project.
Any planned zoning district, subdivision map, or discretionary land use entitlement which authorizes five or more living units or residential lots, or living units and residential lots which total five or more in combination. For the purpose of this Zoning Ordinance, contemporaneous construction of five or more living units on a lot, or on contiguous lots for which there is evidence of common ownership or control, even though not covered by the same land use entitlement, shall also be considered a residential project. Construction shall be considered contemporaneous for all units which do not have completed final inspections for occupancy and which have outstanding, at any one time, any one or more of the following: planned zoning district, subdivision map, or other discretionary entitlement, or Building Permits, or applications for such an approval or permits.
Residential structure types.
1. 
Accessory dwelling unit.
An attached or detached dwelling unit that is located on a single lot with another, primary dwelling unit and provides complete facilities for independent living for one or more persons. These facilities include permanent provisions for living, sleeping, cooking and sanitation. See Section 18.15.050 (Accessory Dwelling Unit (ADU and JADU)).
2. 
Accessory dwelling unit, junior (JADU).
An accessory dwelling unit which is located within the living space of an existing primary single-unit dwelling, as defined in the California Health and Safety Code. See Section 18.15.050 (Accessory Dwelling Unit (ADU and JADU)).
3. 
Dwelling.
A building designed exclusively for residential occupancy, including single-family, duplex, and multifamily, but not including a hotel, motel, or boardinghouse.
4. 
Dwelling unit.
One or more habitable rooms designed for occupancy by one or more persons for living and sleeping purposes and having a kitchen.
5. 
Multi-family dwelling.
A building used and designed to accommodate two or more separate households/living units. Each unit has its own entrances, bathrooms, kitchens, and living areas. See "Multi-family residential" in Section 18.210.060 (Residential Land Use Classifications).
6. 
Single-family dwelling.
A building designed to accommodate one household/living unit on a single lot. See "Single-family residential" in Section 18.210.060 (Residential Land Use Classifications).
Reverse vending machine.
An automated mechanical device that accepts at least one or more types of empty beverage containers including aluminum cans, glass and plastic bottles, and issues a cash refund or a redeemable credit slip. A reverse vending machine may sort and process containers mechanically; provided, that the entire process is enclosed within the machine.
1. 
A single-feed revenue vending machine is designed to accept individual containers one at a time.
2. 
A bulk reverse vending machine is designed to accept more than one container at a time and to compute the refund or credit due on the basis of weight.
Rooftop equipment.
Any structure located on the roof of a building which encloses mechanical equipment.
Room, habitable.
A room meeting the requirements of the Uniform Building Code and Uniform Housing Code for its intended use (e.g., sleeping, living, cooking, or dining), excluding such enclosed places as closets, pantries, bath or toilet rooms, service rooms, connecting corridors, laundries, unfinished attics, foyers, storage spaces, cellars, utility rooms, garages, and similar spaces.
(Ord. 978, 11/17/2025)
Senior citizen housing development.
A housing development as defined in California Civil Code Section 51.3(b)(4) (Government Code Section 65915(b)(1).).
Setback line.
A line within a lot parallel to a corresponding lot line, which is the boundary of any specified front, side, corner side or rear yard, or a line otherwise established to govern the location of buildings, structures or uses. Where no minimum front, side, corner side or rear yards are specified, the setback line shall be coterminous with the corresponding lot line.
Shopping center.
A unified group of retail businesses and service uses on a single site with common parking facilities. A shopping center may include pads for future buildings.
Short-term stay.
The rental of a dwelling or a portion thereof by the owner to another person or group of persons for the lodging or sleeping for a term of less than 30 consecutive calendar days.
Sign.
Any identification, description, illustration, or device illuminated or nonilluminated, which is visible to the general public and directs attention to a product, service, place, activity, person, institution, business or solicitation, including any permanently installed or situated merchandise; or any emblem, painting, flag, banner, pennant, or placard designed to advertise, identify, or convey information.
Sign types.
1. 
Animated sign.
Any sign which uses mechanical or electrical movement or change of lighting, either natural or artificial, to depict action or to create a special effect or scene.
2. 
Banner.
Any sign of lightweight fabric or similar material that is mounted to a pole or a building at one or more edges.
3. 
Business identification sign.
A sign that serves to identify only the name and address of the premises, business, building or portion of building upon which it is located and includes no other advertising such as product lists, phone numbers and hours of operation. Such a sign may include a logo or business symbol.
4. 
Commercial sign.
A sign that is intended to attract attention to a commercial or industrial business, occupancy, product, good, service or other commercial or industrial activity for a commercial or industrial purpose.
5. 
Directional or informational sign.
Any sign erected for the sole purpose of indicating the route to, direction of or location of a given goal, or which provides regulatory or service information of a non-advertising character. Directional and informational signs include but are not limited to: signs that denote the route to any City, community facility, historic place, or hospital; signs directing and regulating traffic; signs directing visitors to tourist-oriented businesses; notices of any utility or transmission company necessary for the direction or safety of the public; and signs, notices or symbols as to the time and place of civic meetings.
6. 
Directory sign.
A pedestrian-oriented sign which identifies or lists the names and locations of tenants at a multi-tenant site.
7. 
Electronic readerboard.
A changeable, moving message sign consisting of a matrix of lamps, light emitting diodes (LEDs), or similar devices which are computer-controlled.
8. 
Flag.
Any fabric, banner, or bunting containing distinctive colors, patterns, or design, used as a symbol.
9. 
Flashing sign.
An illuminated sign which exhibits changing light or color effect by blinking or any other such means so as to provide a nonconstant illumination.
10. 
Freestanding sign.
A sign which is self-supporting in a fixed location and not attached to a building. It includes a sign connected or attached to a sign structure, fence, pole, wall, tree or other vegetation and which is not an integral part of a building.
11. 
Grand opening sign.
A sign used by newly established businesses to inform the public of their location and services.
12. 
Incidental sign.
A small sign less than one square foot pertaining to goods, products, services or facilities that are available on the premises where the sign occurs and intended primarily for the convenience of the public.
13. 
Logo.
A trademark or company name symbol.
14. 
Master sign program.
A coordinated sign plan which includes details of all signs (not including exempt or temporary signs) which are or will be placed on a site, including master identification, individual business and directory signs.
15. 
Multiple-story office sign.
A wall sign used to identify an office building with three or more above-ground levels.
16. 
Neon or other gas tube illumination.
Illumination affected by a light source consisting of a neon or other gas tube which is bent to form letters, symbols or other shapes.
17. 
Noncommercial sign.
A sign that does not name, advertise or call attention to a commercial or industrial business, commodity, product, good, service or other commercial or industrial activity for a commercial or industrial purpose.
18. 
Off-premises sign.
An outdoor advertising sign advertising a business, product or service not offered on the premises where the sign is located.
19. 
Open house sign.
A temporary portable sign providing direction to residential real property during the period it is on public display for purposes of sale or lease.
20. 
Panel sign.
A wall sign with a background panel integrated into the sign. The background panel is typically treated with paint, tile, metal, wood, mosaic, decorative stone or similar materials to complement the sign design.
21. 
Portable sign.
A sign not permanently attached to the ground or other permanent structure, or a sign designed to be transported, including, but not limited to, signs with wheels, A-frames, H-frames, menu and sandwich board signs, balloons used as signs, and umbrellas used for advertising.
22. 
Projecting sign.
A sign which is either suspended from an overhang, canopy, or awning, or is suspended from a mounting attached directly to the building wall and hangs perpendicular to the building wall (also known as a blade sign or shingle sign).
23. 
Real estate sign.
Any temporary sign pertaining to the sale, exchange, lease or rental of buildings or real property.
24. 
Roof sign.
A sign installed on a roof or projecting above the eave of a building or mounted on an arcade or parapet.
25. 
Subdivision directional sign.
A sign providing direction to a land development project within the city pursuant to this chapter.
26. 
Temporary sign.
A sign with commercial or noncommercial text which is intended to be displayed for a limited time. Temporary signs shall include banners or light, rigid material which is not affixed in a permanent manner to the ground or to any structure. Awning signs shall not be considered temporary signs.
27. 
Theater/cinema sign.
A sign, such as a marquee, designed for a theater or cinema, with changeable letters, brighter lights, or other attention-getting features.
28. 
Time/temperature sign.
An electronic or mechanical device which shows time and/or temperature but contains no business identification or advertising. The surface area of the time/temperature display shall be included in the total aggregate sign area of the business.
29. 
Wall sign.
A sign attached directly to an exterior wall of a building or dependent upon a building for support with the exposed face of the sign located in a place substantially parallel to such exterior building wall to which the sign is attached or supported by. An overhang, attached framework, or other substantial architectural appurtenance may be considered an extension of the building wall.
30. 
Window sign.
A sign attached to, suspended or placed within five feet behind, placed or painted upon, the window or glass door of a building which is intended for viewing from the exterior of such building.
Site.
A lot, or group of contiguous lots not divided by a street, other right-of-way, or City limit, and under single ownership or unified control.
Specific plan.
A plan for a defined area that is consistent with the general plan and with the provisions of the California Government Code authorizing specific plans.
Stepback.
A step-like recession in the profile of a multistory building. A stepback requires the building to take a step back from the street for every increase in height of the structure. Stepbacks can also be a design technique to reduce the visual impact of tall buildings.
Story.
The portion of a building included between the upper surface of a floor and the upper surface of the floor next above. The topmost story is that portion of a building included between the upper surface of the topmost floor and the ceiling of the roof above.
Story, half.
A half-story is defined below:
1. 
When the finished floor level directly above a useable or unused underfloor space is six feet or less above finished grade.
2. 
When the finished floor level is directly above a story or half story, any story six feet or less is a half-story.
Structure.
Anything constructed or erected that requires a location on the ground, including a building, a deck, or a swimming pool, but not including fences or walls that are eight feet in height or less and access drives or walks.
Structure, accessory.
An accessory structure is a structure placed on a site, other than the principal, permanent residential structure. An accessory structure must be located on a site with an existing or proposed primary structure. Temporary containers or storage units regulated by Section 18.15.100 (Container or Storage Units), fences or walls eight feet or less in height, decks attached to the principal permanent residential structure, freestanding decks 18 inches or less in height above ground, in-ground pools, and permanent basketball hoops shall not be considered accessory structures.
Swimming pools and hot tubs.
Water-filled enclosures having a depth of 18 inches or more used for swimming or recreation.
(Ord. 978, 11/17/2025)
Target unit.
A dwelling unit within a housing development which will be reserved for sale or rent to and is made available at an affordable rent or affordable ownership cost to, very low-, low-, or moderate-income households, or other qualifying households, such as senior citizen and student housing development.
(Ord. 978, 11/17/2025)
Yard types.
1. 
Corner side yard.
A side yard on the street side of a corner lot. The depth of the corner side yard is the minimum horizontal distance between the corner side property line and a line parallel to it on the site. If a public or private vehicular easement exists, the measurement is from the edge of the easement closest to the structure. If a corner side yard abuts a vehicular access easement that serves only one property, then said yard shall be treated as an interior side yard for setback purposes.
2. 
Front yard.
A yard extending across the full width of a site, the depth of which is the minimum horizontal distance between the front property line and a line parallel to it on the site. If a public or private vehicular easement exists, the measurement is from the edge of the easement closest to the structure.
3. 
Rear yard.
A yard extending across the full width of a site, the depth of which is the minimum horizontal distance between the rear property line and a line parallel to it on the site. On a corner lot, the rear yard extends only to the corner side yard. If a public or private vehicular easement exists, the measurement is from the edge of the easement closest to the structure.
4. 
Side yard.
A yard extending from the rear line of the required front yard, or the front property line of the site where no front yard is required, to the front line of the required rear yard, or the rear property line of the site where no rear yard is required, the width of which is the horizontal distance between the side property line and a line parallel thereto on the site, except that the corner side yard shall extend to the rear lot line.
Figure 18.215-10
Yard Types
(Ord. 978, 11/17/2025)