(1) "Accessory dwelling unit" means a residential dwelling unit that provides complete independent living facilities for one or more persons and is located on a lot with an existing or proposed residential main building. It shall include permanent provisions for living, sleeping, eating, cooking, and sanitation on the same parcel as the main single-family or multifamily building is or will be situated. An accessory dwelling unit includes an efficiency unit as defined in California Health and Safety Code Section
17958.1 and a manufactured home as defined in California Health and Safety Code Section
18007. Types of accessory dwelling units include:
(a) Junior Accessory Dwelling Unit. "Junior accessory dwelling unit" means an accessory dwelling unit that is no more than 500 square feet in size and entirely contained within the walls of an existing or proposed single-family dwelling. A junior accessory dwelling unit may have separate sanitation facilities or may share sanitation facilities with the single-family dwelling.
(b) New Construction Accessory Dwelling Unit. "New construction accessory dwelling unit" means a new enclosed structure constructed solely for the purposes of an accessory dwelling unit that is either an attached new construction dwelling unit or a detached new construction accessory dwelling unit.
(A) "Attached new construction accessory dwelling unit" means an accessory dwelling unit constructed as a physical expansion of an existing single-family dwelling main building, beyond the maximum 150 square foot allowance for ingress and egress.
(B) "Detached new construction accessory dwelling unit" means an accessory dwelling unit constructed as a separate structure not connected to the existing or proposed single-family main building or multifamily dwelling structure. On a lot containing an existing or proposed single-family dwelling, a detached new construction accessory dwelling unit may be attached to an existing or proposed accessory structure. On a lot with existing or proposed multifamily dwellings, detached accessory dwelling units maybe connected by one or more walls to each other.
(c) Conversion Accessory Dwelling Unit. "Conversion accessory dwelling unit" means:
(A) For single-family dwellings: An accessory dwelling unit created through conversion of parts of an existing or space within a proposed single-family dwelling; or conversion of parts of or an entire existing accessory structure, including an expansion of an existing accessory structure of up to 150 square feet solely for accommodating ingress and egress.
(B) For multifamily dwellings: An accessory dwelling unit created within an existing multifamily dwelling structure by converting existing interior non-habitable area.
(2) "Accessory structure" means a detached subordinate structure, with or without a foundation, the use of which is incidental to that of the main building or to the use of the land on the same lot. Types of accessory structures include:
(a) Detached Habitable Spaces. An accessory structure which is detached from the main structure and meets the minimum requirements of the building code for human occupancy. For the purposes of this subsection, detached habitable spaces do not have cooking facilities and may not qualify as accessory living units. If a detached habitable space has cooking facilities, it is regulated as an accessory dwelling unit.
(b) Detached Required Parking. An accessory structure which is detached from the main structure and is designed for, devoted to, or intended to meet the parking requirements for the property. Garages or carports that are not intended to meet required parking are classified as utility buildings as defined herein.
(c) Open Garden Feature. An accessory structure which does not have solid walls, is less than fifty percent covered, and is primarily intended as a decorative garden feature. Open garden features typically include arbors and trellises. Garden features which are fifty percent covered or more are classified as utility buildings as defined herein.
(d) Open Outdoor Equipment. Accessory equipment or structures which are not roofed, do not have solid walls and are primarily intended for recreation or outdoor cooking. Outdoor equipment may include play structures such as swings, trampolines, and jungle gyms, outdoor fireplaces or accessory cooking areas such as barbecues and ovens. Play houses and other enclosed equipment is classified as utility buildings as defined herein.
(e) Temporary Utility Tents. These structures are built with lightweight poles, typically plastic or aluminum, that are covered with a tarp or other similar temporary materials. They may be freestanding or embedded into the ground. Temporary utility tents include car tents, vehicle awnings, and other similar types of covers and are intended to cover vehicles or other types of storage. Temporary utility tents may not be installed for longer than ninety days in a one-year period.
(f) Utility Building. An accessory structure which cannot be categorized as detached required parking, detached habitable space, open garden feature, open outdoor equipment or temporary utility tent. Utility buildings include detached patio covers, tool sheds, storage sheds, workshops, greenhouses, animal shelters, gazebos, enclosed play houses, and other similar uses.
(3) "Accessory use" means a use which is subordinate or supplementary to a main use.
(4) “Active use” or “active building frontage space” means either the standalone land use, or a component, activity, or space within the same land use, which maintains visual transparency between the street and the building’s interior on the ground floor and which provides and encourages foot traffic at the street frontage.
(5) "Adjacent to a property in a residential zoning district" means any property (including a corner lot) sharing a common property line with a property which is located within a residential zoning district as defined by this title. Properties separated by a street (except State Highways 85 and 237 and U.S. Highway 101) shall be deemed to have a "common property line."
(6) "Adult day care center" means a use in which individuals eighteen years or older receive non-medical care and supervision for less than a twenty-four-hour period for compensation or profit.
(7) "Adverse conditions, covenants and restrictions for solar access" means any agreement or provision thereof, which effectively prohibits or penalizes the installation or use of solar collectors, including, but not limited to, those conditions, covenants and restrictions which do so by:
(a) Prohibiting the installation or use of ancillary structures upon buildings;
(b) Restricting the permissible height of roof-mounted structures; or
(c) Delegating building design review authority, capable of being exercised in a manner inconsistent with the terms of this title, to an architectural review committee or similar private entity.
(8) "Affordable housing" means dwelling units with a requirement or obligation to be rented or owned by households and individuals whose income meets the definition of moderate or below as determined by the California Department of Housing and Community Development guidelines and adjusted for household size.
(10) "Alteration" means any exterior change or modification to an improvement or site which affects the exterior architectural features of property.
(11) "Animal hospital" means an establishment where animals or pets are given medical or surgical treatment by a licensed veterinarian and are cared for during the time of such treatment. Boarding of treated animals shall be limited to short-term boarding and shall be only incidental to such hospital use. Other commonly used term for this use includes veterinary clinics.
(12) "Animal boarding" means a premises where pet animals owned by another person are temporarily boarded for pay, trade, barter, commission, or remuneration of any sort; provided, however, this definition shall not a pply to zoos or to animal hospitals operated by licensed veterinarians.
(13) "Animal grooming service" means any place or establishment, public or private, where animals are bathed, clipped, or combed for the purpose of enhancing their aesthetic value or health and for which a fee is charged.
(14) "Animal shelter" means a facility used to house or contain stray, homeless, abandoned, or unwanted animals and that is owned, operated, or maintained by a public body, an established humane society, animal welfa re society, society for the prevention of cruelty to animals, or other nonprofit organization devoted to the welfare, protectio n, and humane treatment of animals.
(15) "Antenna" means any system, external to or attached to the exterior of any building, of wires, poles, rods, discs or similar devices used for the transmission and/or reception of radio, television or other communication signals.
(a) "Antenna, directional" (also known as a "panel" antenna) means an antenna which transmits and/or receives radio frequency signals in a directional pattern of less than three hundred sixty degrees.
(b) "Antenna, dish" means any antenna, external to or attached to the exterior of any building or structure, which is parabolic or semicircular in cross-section.
(c) "Antenna, façade mounted" means any antenna, directly attached or affixed to the elevation of a building, tank, tower, or other structure.
(d) "Antenna, ground mounted" means any antenna with its base, single or multiple posts, placed directly on the ground or a mast less than fifteen feet tall and not greater than six inches in diameter.
(e) "Antenna, omnidirectional" means an antenna which transmits and/or receives radio frequency signals in a three hundred sixty degree radial pattern.
(f) "Antenna, parabolic" (also known as "satellite dish antenna") means any device incorporating a reflective surface that is solid, open mesh, or bar configured that is shallow dish, cone, horn, bowl or cornucopia shaped and is used to transmit and/or receive electromagnetic or radio frequency communication signals in a specific directional pattern.
(g) "Antenna, portable" means any device used to transmit and/or receive electromagnetic or radio frequency communication signals in a specific directional pattern, located on a portable or moveable base designed to be placed either for temporary or long-term use at a given site.
(16) "Apartment" means a building designed for or occupied by three or more families living independently of each other, but not including boardinghouses or lodginghouses, hotels, motels, mobile or trailer homes, condominiums, community apartments or stock cooperatives.
(17) "Apartment vacancy rate" means the number of apartments being offered for rental or lease in the city of Sunnyvale, shown as a percentage of the total number of apartments both being offered for and actually under rental or lease agreement.
(18) "Applicant" means any person, firm, partnership, association, joint venture, corporation, or any entity or combination of entities which seeks city real property development permits or approvals.
(19) "Appurtenant" means something that belongs with or to a more important thing, as in appurtenant uses.
(20) "Art gallery" means an establishment engaged in the sale, loan, or display of art books, paintings, sculpture, or other works of art. This definition excludes libraries, museums, or non-commercial art galleries.
(21) "Artist studio" means a workspace for one or more artists or artisans, including the accessory sale of art produced on the premises and which does not include any dwelling space.
(22) "Assisted living facility" means a facility that provides primarily nonmedical resident services to seven or more individuals in need of personal assistance essential for sustaining the activities of daily living, or for the protection of the individual on a twenty-four-hour-a-day basis. Members of the resident family or persons employed as facility staff are excluded.
(23) "Association" means the organization or person owning a lot, parcel, area, condominium or right of exclusive occupancy in a community apartment project.
(24) "Automobile dealership" means any use of a building or property for which the display, sales, lease, or rental of new or used automobiles, trucks, vans, trailers or recreational vehicles, and may include warranty repair work or repair services. For properties with three or fewer vehicles in inventory, see "Automobile showroom."
(25) "Automobile/vehicle service and repair" may be classified as either "major" or "minor." "Major" service and repair includes, but is not limited to: engine overhaul; bodywork; and customizing of any vehicles. "Minor" service and repair includes, but is not limited to, battery replacement; small part changes; tire repair; brake servicing; touch-up painting; oil changes; lubrication; engine tune-ups; radio replacement; detailing; cleaning; and other similar activities.
(26) "Automobile service station" means premises offering the retail sale of motor vehicle fuel, lubricating oils, tires or other incidental vehicular accessories, and/or providing routine vehicular maintenance and minor servicing (such as replacement of minor parts and accessories, tune-up and lubrication, or tire repair) or related and accessory sales and services, which do not produce excessive noise or require outdoor storage of vehicles or parts. As permitted, it may also include retail sales of groceries, and may include the sale of beer and wine. "Automobile service station" does not include major automobile/vehicle repair.
(27) "Automobile showroom" means any use of a building for the display, sales, lease, or rental of new or used automobiles, trucks, vans, trailers or recreational vehicles, with a maximum of three vehicles available in inventory outside the showroom and does not include any repair work or services.
(28) "Automobile wrecking yard" means the dismantling or disassembling of motor vehicles or trailers, the storage, sale or dumping of dismantled, obsolete or wrecked vehicles, or their parts, and the towing of such vehicles or parts in conjunction with such activity.
(Prior zoning code §§ 19.09.020, 19.24.020(a)(1), 19.70.020, 19.80.050, 19.84.010, 19.88.020, 19.92.020, 19.96.010, 19.98.010; Ord. 2623-99 § 1; Ord. 2721-03 § 1; Ord. 2802-06 § 1; Ord. 2810-06 § 1; Ord. 2831-07 § 1; Ord. 2848-07 § 1; Ord. 2875-08 § 1; Ord. 2907-09 § 1; Ord. 2966-11 § 1; Ord. 2983-12 § 1; Ord. 2988-12 § 1; Ord. 3105-16 § 2; Ord. 3154-20 § 1; Ord. 3189-22 § 3; Ord. 3218-23 § 1; Ord. 3233-24, 11/19/2024; Ord. 3240-25, 4/8/2025; Ord. 3242-25, 7/29/2025)