[Amended 9-9-1997]
1. Capacity Employee Gross Floor Area GROSS LEASABLE AREAa) b) c) d)
Definitions.
The capacity of a facility or space as calculated by the applicable building code.
The regular working staff (paid, volunteer or otherwise) at maximum strength and in full-time equivalent numbers necessary to operate, maintain or service any given facility or use under normal levels of service.
The term "gross floor area" (GFA) as used in this document shall mean the total floor area, including the exterior building walls, of all floors of a building or structure. GFA shall include all occupyable areas minus the following deductions:
The term "gross leasable area" (GLA) as used in this document shall mean the gross floor area minus the following floor area deductions:
Elevator shafts and stairways.
Public restrooms.
Public lobbies, common mall area, atriums and courtyards provided solely for pedestrian access to the building from the exterior, and/or for aesthetic enhancement or natural lighting purposes.
Permanently designated corridors (i.e., not subject to relocation by the requirements of a specific lease).
2.
General.
a)
No land shall be used and no building or structure shall be erected, enlarged or used unless the off-street parking space requirements are provided as specified in this section. For the purpose of this section, an enlargement of any building by thirty percent (30%) or more shall require the provision of off-street parking for the existing building as if it were newly constructed. Whenever any building, improvement or use of land may be changed to a new use, whether conforming or nonconforming, the provision for parking and loading spaces shall be as required for the new use so approved.
b)
Where the computation of required parking spaces results in a fractional number, fractions of one-half (1/2) or more shall be counted as one (1).
c)
Required off-street parking facilities shall be provided on the same lot as the principal use they are designed to serve or as provided in paragraph 6. Satellite Parking, herein.
d)
Each required car space shall be not less than ten feet (10') in width and twenty feet (20') in length exclusive of drives and maneuvering space. Where more than five (5) spaces are required, they shall be paved, except as may be required by environmental regulatory agencies.
e)
Handicapped parking spaces accessible to disabled persons shall be provided as may be applicable under the Americans With Disabilities Act and any federal regulations promulgated thereunder.
f)
All off-street parking and loading facilities shall be suitably sloped and drained to eliminate standing water and prevent damage to abutting property and/or public streets and alleys, so as not to cause any nuisance to adjacent or public property. In no case shall an off-street parking area exceed five percent (5%) in slope. The design of all parking lot drainage shall conform to the drainage requirements herein, and utilize the Town of Portsmouth Subdivision Design Standards and the Rhode Island Stormwater Design and Installation Standards Manual, as applicable.
[Amended 2-4-2008]
g)
All off-street parking and loading facilities shall maintain distances from buildings, fire hydrants, post indicator valves and emergency access ways as required by the applicable Fire Code.
h)
Where one (1) building is used for more than one (1) use, parking requirements shall be computed for each use, except as provided in the parking requirements table below or under Satellite Parking or Shared Parking below. Where space within a building is shared, the more stringent requirements shall apply.
i)
No motor vehicle repair work or service of any kind shall be permitted in conjunction with parking or loading facilities provided in commercial districts, except emergency repair service necessary to start vehicles.
j)
No existing parking facility which is a part of any building, improvement or use of land, whether on the same lot as the principal use or on a separate lot, shall be reduced in size below the number of spaces required for such principal use, and for any and all accessory uses. This section shall not be construed to mean that parking facilities may not be reconfigured.
k)
Any parking area and loading space as defined in this Ordinance shall be continually maintained in satisfactory condition so as to be safe and attractive and free of hazard, nuisance or other unsafe condition.
l)
Overnight parking of RV's, mobile homes and other vehicles providing transient residency is prohibited.
[Added 2-4-2008]
3.
Minimum parking requirements.
a)
Minimum parking requirements table.
USE | REQUIRED SPACES | OTHER REQUIREMENTS | ||
|---|---|---|---|---|
RESIDENTIAL USES | ||||
Single Family | 2/unit | |||
Mobile home parks | 2/unit | |||
Multi-family Residential | ||||
Studio and 1 bedroom | 1/unit | plus 1 guest/5 units | ||
Two bedrooms | 1.75/unit | plus 2 guest/5 units | ||
Three or more bedrooms | 2/unit | plus 3 guest/5 units | ||
Senior citizen apartments | ||||
Senior - efficiency | 1/unit | plus 1 guest/5 units | ||
Senior - 1 bedroom | 1/unit | plus 1 guest/5 units | ||
Senior - 2 bedroom | 1.5/unit | plus 2 guest/5 units | ||
Senior - 3 bedroom | 2/unit | plus 3 guest/5 units | ||
Assisted Living/Congregate Care | 1/10 regular beds, 1/5 special care | plus 1/250 gla office, medical, other, + 5 for kitchen & maintenance | ||
TEMPORARY RESIDENTIAL OCCUPANCY USES | ||||
Hotels/motels/inns | 1/unit | plus 50% of requirements for related uses, + 2 for manager's unit. | ||
Sanitariums/nursing homes | 1/5 beds | or State requirement | ||
Rooming and lodging houses | 2 + 1/rental unit | |||
Group Home | 1/3 beds | may be less if residents unable to drive | ||
RETAIL, OFFICE AND SERVICES | ||||
Shopping Center | 4/1,000 sf of gla under 400,000 gla | See also offices and restaurants | ||
Grocery Store | 6 + 5/1,000 gla | |||
General Retail | 4/1,000 gla | |||
Offices, general: | ||||
gla up to 7,500 sf | 4/1,000 gla | |||
7,501 to 40,000 sf | 3.3/1,000 gla | |||
40,001 sf and greater | 3/1,000 gla | |||
Office in Shopping Center: | ||||
10% or less of center gla | no added space beyond that for general retail | |||
over 10% of gla | for that portion over 10%, add as required beyond general retail by type of office use | |||
Office, medical/dental | 4/1,000 gla | plus 1/100 sf waiting room | ||
Office in residence | Determined at project review | |||
Services | ||||
Bank, S&L, Credit Union | 5/1,000 gla | |||
ATM | 2/machine | |||
Unspecified Services | 4/1,000 gla | |||
EATING/DRINKING ESTABLISHMENTS | ||||
Restaurants, cafes, bars | 13/1,000 gla | |||
Restaurant - Fast Food | 17/1,000 gla | |||
Restaurant in Shopping Center of 25,000 to 100,000 gla | 10/1,000 gla | |||
Restaurant in Shopping Center of 100,000 to 200,000 gla | 6/1,000 gla | |||
AUTOMOBILE RELATED | ||||
Gas Station*, Vehicle Repair* | 1/pump + 3/service bay | plus 1/250 sf of gla office and sales | ||
Carwash | 2/drying bay | plus stacking area** | ||
* A service bay or pump is not a parking stall | ||||
** Stacking area is not parking. | ||||
A washing space is not a parking or stacking space. | ||||
RECREATION | ||||
Health clubs | 1/200 sf of gla | plus 50% of required for incidental uses | ||
Amusement Center | 5/1,000 gla | plus 50% of required for incidental uses | ||
Night Club | 20/1,000 gla | |||
Golf Driving range | 3, plus 1/tee | plus 50% of required for incidental uses | ||
Golf course | 4/green | plus 50% of required for incidental uses | ||
Miniature golf course | 1.25/hole | plus 50% of required for incidental uses | ||
Tennis/racquetball | 2/court | plus 50% of required for incidental uses | ||
OUTDOOR, PARTLY OUTDOOR USES | ||||
Retail nursery/garden shop | 1/1,000 sf indoor + 1/2,000 sf outdoor or greenhouse sales | |||
Produce stand | 6/1,000 gla | |||
Lumber yard | 2/1,000 SF lot area | Parking for major machinery may not fill required spaces. | ||
Marina | 1/2 slips | if a launch ramp is provided, 20% of all spaces shall be 35 feet or longer to accommodate boat trailers. | ||
Retail outdoor other | 1.5/1,000 sf lot used for display | |||
SCHOOLS | ||||
Business, professional, trade schools | 1/1.5 students | |||
Art, dance, music studio | 1/2 students at maximum capacity | |||
Nursery/day care/pre-school | required staff + 1/10 capacity | number of staff as regulated by State | ||
INSTITUTIONAL USES AND PLACES OF ASSEMBLY | ||||
Church, synagogue* | 1/4 seats capacity | |||
Club, lodge | 1/4 capacity | |||
Other places of assembly | 1/4 capacity | |||
* Parking spaces for public religious assembly may also be double counted for affiliated office, school and related activities. | ||||
INDUSTRIAL AND STORAGE USES | ||||
Self-service storage | 3/100 units | no added spaces for sales area related to storage. | ||
Warehouse | 0.75/1,000 gla | |||
Research and Development | 2/1,000 gla | |||
Manufacturing | ||||
1 - 3,000 sf | 4/1,000 sf of gla | |||
3,001 - 5,000 sf | 2/1,000 sf of gla | |||
5,001 - 10,000 sf | 1.3/1,000 sf of gla | |||
10,001 - 50,000 sf | 1/1,000 sf of gla | |||
50,001 + sf | 0.8/1,250 sf of gla | |||
DRIVE UP STACKING LANE SPACE | ||||
Banks, S&L | 8 vehicles for 1st drive-up lane, 6 for 2nd and subsequent lanes | |||
Restaurants with driveup | Stacking for 11 vehicles, of which at least 6 before menu board | |||
Carwash - self service* | 2 queuing lane in front of each stall | |||
Carwash - full service* | 2 times the capacity of the washing operation (length of the conveyor divided by 20) | |||
* A stacking lane shall be at least 10 feet wide and each stacking space shall be 20 feet long. Stacking shall not interfere with parking nor travel lanes, nor protrude into the street. | ||||
b)
Requirements for uses not specifically listed herein shall be determined by the Building Inspector based upon the requirements for comparable uses and upon the particular characteristics of the use.
c)
In all cases in which parking of large vehicles or of more than one (1) company vehicle is part of the business, additional spaces shall be provided for such vehicles.
4.
Stacking spaces for drive-through services Uses which have drive-through window services shall provide queuing spaces. The minimum number of queuing spaces required shall be determined by the Zoning Board of Review. Where such queuing spaces are provided, they shall conform to the following standards:
5.
Aisles, driveways and maneuvering space
a)
Each access driveway shall be located and designed so as to cause the least practical interference with the use of adjacent property and with the movement of pedestrian or vehicular traffic.
b)
Access driveways shall be curbed.
c)
All parking facilities shall be arranged so that any vehicle entering a public right-of-way can do so while traveling in forward motion, and a vehicle entering the parking facility shall not be required to enter a street to move from one (1) location to any other location within the parking facility.
d)
All parking facilities shall be arranged so that parking maneuvers can be accomplished without driving, maneuvering or encroaching into or upon any public right-of-way, walk-way, or unpaved landscaped area within or adjoining the parking facility. All parking stalls shall open directly upon a maneuvering or turn around area or an aisle leading to an access driveway and shall be individually and continuously accessible.
e)
As feasible, in traffic sensitive areas adjacent commercial parking lots shall be connected by driveways in order to lessen traffic congestion.
f)
The radius of entrance drives shall be fifteen feet (15').
h)
Parking area aisle widths shall conform to the following table, which varies the width requirement according to the angle of parking:
Parking Angle (degrees) | ||||
|---|---|---|---|---|
Aisle Width | 45° | 60° | 90° | |
One-Way Traffic | 11' | 13' | 18' | |
Two-Way Traffic | 20' | 21' | 23' | |
6.
Satellite parking. Parking may be permitted by the Zoning Board of Review on an abutting lot or, if not in a traffic sensitive district, directly across the street from the principal building, provided that:
7.
Parking lot location and orientation for parking lots greater than one hundred (100) spaces.
[Added 2-4-2008]
a)
Parking areas should provide safe, convenient, and efficient access for vehicles and pedestrians. They should be distributed around large buildings in order to shorten the distance to other buildings and public sidewalks and to reduce the overall scale of the paved surface. If buildings are located closer to streets, the scale of the complex is reduced, pedestrian traffic is encouraged, and architectural details take on added importance.
b)
No more than sixty percent (60%) of the off-street parking area for the entire property shall be located between the front facade within the front yard of the principal building(s) and the primary abutting street unless the principal building(s) and/or parking lots are screened from view by out-lot or pad development (such as restaurants) or additional tree plantings and/or berm.
c)
Smaller retail/service buildings less than twenty thousand square feet (20,000 ft.2) and located within a large retail complex as a separate building pad(s) should incorporate into their design structural enhancements similar to the principal structure in order to provide visual consistency and a greater sense of place within the center.
d)
The location of all off-street parking spaces shall be on the same lot as the principal use or not over four hundred feet (400') from the principal use, unless permitted under "shared parking" or satellite parking provisions.
e)
A designated Park and Ride area may be required. If required, Park and Ride areas shall be a minimum of ten (10) parking spaces (not to be included in satisfying minimum parking lot space requirements), and shall be located as near to the principal vehicular access and public transit facilities as possible.
f)
An off and/or on-street bus stop for customers and employees shall be provided when the site is located on an established or planned transit route.
g)
Cart Returns. Where shopping carts are to be provided, a minimum of one (1) two hundred square foot (200 ft.2) cart return area shall be provided at suitable intervals within the parking area for every one hundred (100) parking spaces. Cart corrals shall be of durable, non-rusting, all season construction, and shall be designed and colored to be compatible with the building and parking lot light standards. There shall be no exterior cart return or cart storage areas located in the parking lot within twenty-five feet (25') of the building.
(1)
Shopping cart storage areas adjacent to facade walls (not in parking lots) must be screened with landscaping or materials matching the materials of the primary facade wall. No more than two (2) shopping cart storage areas (one (1) on each side of an entrance) may be provided on any facade wall. Shopping cart storage areas may not exceed twenty feet (20') in length.
8.
Shared parking facilities.
a)
Required off-street parking for any number of separate uses may be combined in a shared parking facility under the conditions of this section, subject to the approval by the Zoning Board of Review. Such parking space shall be established by a recorded covenant or agreement as parking space to be used in conjunction with the principal use and shall be reserved as such through an encumbrance on the title of the property to be designated as required parking space. Removal of such encumbrance may be permitted only by the Zoning Board of Review or Planning Board, as applicable.
b)
The total number of spaces provided shall not be less than the sum of the individual requirements for all uses, unless otherwise permitted as follows:
(1)
Up to seventy-five percent (75%) of the parking spaces required for theaters, public auditoriums, banquet facilities, and church auditoriums may be provided and used jointly by offices, retail, service establishments, schools, and similar uses not normally open, used, or operated during the same hours as those uses listed above.
(2)
Up to thirty percent (30%) of the parking spaces required for the predominant use on a site may be shared with other uses operating during the same time of day and days of the week. The predominant use is considered to be that which requires the most parking of those sharing the parking facilities.
[Amended 2-4-2008]
9.
Off-street loading requirements.
a)
Adequate off-street loading shall be provided for each use. Loading bays shall be located at the side or rear of the building they are intended to serve. Off-street loading facilities required by this section shall be maintained as long as the building, use or structure remains.
b)
Off-street loading spaces shall not be used to meet off-street parking requirements, nor shall off-street parking facilities be used to meet off-street loading requirements.
c)
No loading bay shall be located within fifty feet (50') of a residential district. Trash collection or compaction areas shall not be located within twenty feet (20') of any public street, public sidewalk.
d)
Staging, loading, or idling of commercial vehicles in a service area is prohibited between the hours of 9:00 p.m. and 7:00 a.m. Signs prohibiting staging, loading, or idling of commercial vehicles between the hours of 9:00 p.m. and 7:00 a.m. must be posted every one hundred feet (100') adjacent to the service area.
[Added 2-4-2008]
10.
Landscaping requirements. It is intended that the application of the landscape standards set forth below will reduce the visual and environmental impacts of large expanses of parking areas. Breaking up of paved parking areas with plantings will provide improved aesthetics and enhance both the development and the community.
a)
A landscaping and lighting plan to be submitted as part of the development application is required for all parking areas.
(1)
The plan will specify plant materials and will illustrate how landscape provisions will visually screen and divide parking areas.
(2)
Illumination levels and placement of light sources will be shown.
(3)
Lighting must be full cut-off lighting directed away from residential uses and no more than twenty feet (20') high at the perimeter of the parking area, with a brightness of no more than one-half (1/2) foot-candle at any property line with the exception of vehicular entrances and exits.
[Added 2-4-2008]
b)
Where a parking area is altered or expanded to increase the size to fifteen (15) or more vehicular parking spaces, interior landscaping for the entire parking area shall be provided and not merely to the extent of its alteration or expansion.
c)
Landscaped areas shall not count toward the seventy percent (70%) Maximum Building, parking and travelway coverage in Article VII Section G. Retail Business, Office or Consumer Service Complex herein (that is they are counted as unpaved open areas).
d)
Interior parking area landscaping. For the purposes of this section, the "interior parking area" shall include parking stalls, access drives, aisles, walkways, dead spaces, and required separations of parking from structures, but shall not include required setbacks, access driveways or walkways within such setbacks, or areas between buildings.
(1)
The following percentages of interior parking area shall be suitably landscaped as described below:
Size of Parking Lot | % of Interior Area to be Landscaped | |
|---|---|---|
< 15 spaces | 0% | |
15 - 50 spaces | 5% | |
50 - 100 spaces | 7% | |
> 100 spaces | 10% |
e)
Landscaping dimensions and material. Parking lots containing fifteen (15) or more spaces shall be planted with at least one (1) tree per twelve (12) spaces, no smaller than two-inch (2") caliper (trunk diameter at four-foot (4') height), each tree being surrounded by no less than fifty square feet (50 ft.2) of permeable, unpaved area.
(1)
All landscaping shall be contained in planting beds. Each planting bed shall have a minimum area of fifty square feet (50 ft.2) and shall be enclosed by appropriate curbing or similar device at least six inches (6") wide and six inches (6") in height above the paving surface. Planting beds may be located below the grade of the paved lot in order to absorb some surface water runoff.
(2)
Interior landscaping features shall be arranged in a linear manner in order to provide a consistent pattern of parking. On each end of a landscaped feature shall be planted either a tree with a minimum vertical clearance of branches six feet (6') from the ground or one (1) or more shrubs not less than two feet (2') in height nor more than four feet (4') in height.
(3)
Interior landscaping features containing trees shall be contained in peninsulas or islands having a minimum width of eight feet (8') and a minimum length of eighteen feet (18'). There shall be a minimum of four feet (4') to the center of all trees from the edge of paving where vehicles overhang.
(4)
Grass, ground cover or mulch with a growth-preventing pervious underlayment shall be planted on all portions of the landscape area not occupied by other landscape material.
(5)
In order to provide that the required landscape areas be properly dispersed, no required landscape area shall be larger than the following:
(i)
Three hundred fifty square feet (350 ft.2) in parking areas under thirty thousand square feet (30,000 ft.2).
(ii)
One thousand five hundred square feet (1,500 ft.2) in parking areas over thirty thousand square feet (30,000 ft.2).
(iii)
Landscape areas larger than the above are permitted as long as the additional area is in excess of the required minimum.
(6)
All landscaped islands shall be situated below the grade of the parking spaces and driving aisles such that stormwater runoff flow is directed to and trapped by such islands.
[Added 2-4-2008]
f)
Perimeter buffer and screening. The intent of perimeter buffers and screening is to minimize, to the greatest extent practicable, visual and noise impacts on abutting residential properties from buildings, parking lots, and accessory uses and equipment (lighting, loading, traffic, etc.). For parking lots over one hundred (100) spaces, the intent is to screen such items from view from adjacent residential properties, to the greatest extent practicable, and from the street, while still allowing sufficient visibility for the intended use of the property.
Perimeter buffer and screening should be minimized for developments within the Town Center Zoning District, except within rear setbacks that abut residential zones.
[Added 2-4-2008]
(1)
Parking areas must be screened along lot lines bordering institutional or residential uses or residential zones and along street frontages. A landscaped buffer area at least twenty feet (20') wide to the rear lot line and ten feet (10') wide to the side lot lines is required. The front landscaped buffer along a public street shall be the depth of the required front yard or twenty feet (20'), whichever is less. For parking lots over one hundred (100) spaces, the Zoning Board of Review or Planning Board, as applicable, may require a landscaped buffer up to fifty feet (50') wide. Such width shall be based upon:
[Amended 2-4-2008]
• | Size and intensity of proposed use; | |
• | Relative topography of the proposed development to adjacent residential development; | |
• | Placement of parking, loading and service areas; | |
• | Landscaped and/or solid screening. |
(2)
All trees shall be a minimum of two-inch (2") caliper (trunk diameter) when planted. Native trees and shrubs shall be planted wherever possible, in order to capture the "spirit of the locale" through indigenous species. Trees shall be of a type that will survive urban conditions with little or no maintenance.
(3)
For parking lots over one hundred (100) spaces, up to seventy-five percent (75%) of the lot frontage adjacent to any arterial street, not including vehicular and pedestrian entrances, may be required to include screening of on-site parking by means of on-site buildings, which may include the primary structure, as well as dense landscaping, or a combination.
[Added 2-4-2008]
(4)
For parking lots over one hundred (100) spaces, seventy-five percent (75%) of the lot frontage adjacent to all other streets shall provide screening of on-site parking.
[Added 2-4-2008]
(5)
Lot frontage adjacent to residential use or residential zoning districts shall provide screening of on-site parking by means of walls, landscaping, landscaped berms, or buildings.
[Added 2-4-2008]
(6)
Upon variance, a landscaped buffer of not less than at least six feet (6') wide, may be permitted provided it is densely planted with a mixture of deciduous and evergreen trees and shrubs to create an effective visual barrier.
(7)
Any fire lane and setback of the fire lane from a building required by the Portsmouth Fire Department may not count toward the landscaped buffer requirement.
[Added 2-4-2008]
(8)
Maintenance of significant trees.
[Added 2-4-2008]
(i)
Removal of viable live trees greater than twelve inches (12") in caliper is expressly prohibited within any required landscaped buffer, except invasive species that tend to choke out other growth. An area of six feet (6') on all sides of such trees may not be paved.
(ii)
Removal of viable live trees greater than twelve inches (12") in caliper within the proposed building footprint or within the parking area may be approved by the Board if no reasonable alternative is available.
(iii)
A tree deemed "destroyed" by a certified arborist chosen by the Town at the applicant's expense may be removed with the approval of the Zoning Enforcement Officer.
g)
Screening material.
[Added 2-4-2008]
(1)
Suitable temporary visual screening at least six feet (6') in height shall be installed within any required buffer prior to the commencement of any other construction, excavation, land clearing or grading activities.
(2)
Where any parking lot or section of a parking lot greater than one hundred (100) spaces faces residential uses on adjacent lots within one hundred feet (100'), a permanent berm containing at a minimum evergreen trees or arborvitae at least six feet (6') in height when planted, planted at intervals of twenty feet (20') on center. Height and width or berm and locations of plantings shall be designed by a registered landscape architect or certified arborist to meet the intent of this section. Depending upon the size and nature of the development, the appropriate Board may require up to a double row of six foot (6') high evergreen trees planted at minimum intervals of ten feet (10') on center or in clusters or clumps shall be provided. Existing trees and shrubbery, or other suitable visual barrier, may substitute for this requirement, at the discretion of said Board. At its option, said Board may require a solid wood fence of six feet (6') in height in addition to or in place of said berm, but not in place of the evergreen trees or arborvitae. Wood fences on the perimeter of a lot shall be installed with the finish side of the fence slats facing toward the neighboring property.
(3)
Chain link or wire mesh fence may not be used as a screening material.
h)
Landscaping for service structures.
(1)
In all non-industrial zones, outdoor storage areas, exposed machinery, service structures including propane tanks, dumpsters and outdoor areas used for the storage and collection of rubbish, air conditioning units and condensers, electrical transformers, and other equipment or elements providing service to a building or a site must be visually screened from roads and surrounding land uses. Suitable types of screening include opaque wood fences and dense evergreen hedges of five feet (5') or more in height. Service structures in an industrial zone shall be fully screened when located within thirty-five feet (35') of any zone other than industrial.
(2)
A continuous planting, hedge, fence, wall, or earth mound shall enclose any service structure on all sides unless such structure must be frequently moved, in which case screening on all but one (1) side is required. The average height of the screening material shall be one foot (1') more than the height of the enclosed structure, but shall not be required to exceed eight feet (8') in height. If service structures are screened by plant material, such material may count towards the fulfillment of perimeter landscaping. In locations where potential health or safety hazards may arise (such as rubbish storage/collection areas), a solid wooden fence, six feet (6') in height is required (to deter children and animals from entering the premises).
i)
Vision clearance. All developments, signs, landscaping and other improvements shall provide for clear, unobstructed vision for pedestrians and motorists entering, exiting or moving within any development.
(1)
Pertaining to street intersections, entrances or exits from parking lots, and intersections of parking lot aisles and driveways, there shall be a three (3)-dimensional area between the height of three feet (3') and seven feet (7') from the ground for a distance of thirty feet (30') from the corner in which nothing exists, is erected, placed, planted or allowed to grow in such manner as to materially impede vision.
