A.
Applicability. The following shall be the minimum standards required. The Planning Board may require additional buffer requirements such as fencing, berms, landscaping, etc. during site plan, special use permit, or subdivision review. These standards shall apply to all zoning districts and uses. Whenever possible, these standards shall be met by saving existing trees on the site. The planting new trees from the recommended species list below shall be required where existing vegetation does not exist. The Planning Board may vary the species on this list at its discretion.
B.
Buffers from existing roadways for new major subdivisions of 10 or more lot or new commercial site plan developments.
(1)
A landscaped buffer strip shall be provided adjacent to all existing public and private streets. The buffer strip shall be a minimum of 10 feet exclusive of the street right-of-way. Within the landscaped strip, one shade tree (three-inch caliper minimum) shall be provided per every 250 square feet, or any portion thereof, of landscaped strip. Required shrubbery shall be no higher than four feet above existing street grades, nor shall any tree with foliage extending below 10 feet above the established street grades be maintained, within 20 feet of any street intersection or 10 feet of driveway/street intersections. This restriction is for purposes of maintaining visibility at all times.
(2)
Where parking lots and drives abut the landscaped strip along the street right-of-way, evergreen shrubs selected from the list below must be provided for screening. The screening must be a minimum of three feet high and extend along the entire street frontage of the parking lot, exclusive of driveways and visibility clips. A landscaped berm may be provided in lieu of required shrubs. The berm must be 18 to 40 inches above the average grade of the street and parking lot curbs, with a slope not to exceed 3:1. If a parking lot is located 50 feet or more from the street right-of-way line, no screening shrubs or berm will be required.
Evergreen Low Screening Shrubs | |
|---|---|
Common Name | Scientific Name |
Euonymous | Euonymous fortunei |
Oregon grape | Mahonia aquifolium |
Rhododendron | Rhododendron ('compacta' varieties) |
Holly | Ilex ('compacta' varieties) |
Dwarf hinoki false cypress | Chamaecyparis obtusa 'Nana Gracilis' |
Spruce | Picae (varieties) |
Juniper | Juniperus (varieties) |
Yew | Taxus (varieties) |
The blue hollies | Ilex meservae |
Mountain laurel | Kalmia latifolia |
Fire thorn | Pyracantha |
Rhododendron | Rhododendron |
Leatherleaf viburnum | Viburnum rhytidophyllum |
C.
Visibility. Street-level landscaping shall not interfere with visibility.
D.
Interior parking lot landscaping. Interior parking areas shall be landscaped in addition to the required landscaped strip. Trees must be provided in each parking lot at a minimum average density of one shade tree (three-inch caliper) for each 15 parking spaces, or any fraction thereof. Additionally, interior parking lot landscaping shall be provided in accordance with the following table:
Total Parking Area (square feet) | Interior Landscaped Area |
|---|---|
Less than 24,999 | 5% |
25,000 to 49,999 | 8% |
50,000 or larger | 10% |
E.
Exterior parking lot landscaping. A landscaped strip shall be provided around the perimeter of the site, exclusive of driveways. The landscaped strip shall be a minimum of five feet wide for sites 10,000 square feet or greater and three feet wide for sites less than 10,000 square feet, except for any area abutting a public street, in which case, the requirements of Subsection B above shall apply. Within the perimeter landscaped strip, one shade tree (three-inch caliper minimum) shall be provided per every 250 square feet, or any portion thereof, of landscaped strip.
F.
General parking lot landscaping.
(1)
Parking lot landscaping shall be met for all customer and employee parking. Parking lot landscaping requirements shall apply to storage and standing parking spaces incidental to uses, such as sales and rental of motor vehicles, mobile homes, boats, trailers, or other similar uses, if such storage is visible from any public rights-of-way.
(2)
To calculate the total parking area and the subsequent percentage of required interior lot landscaping, total the square footage of parking spaces, planting islands, curbed areas, and all interior driveways and aisles, except those with no parking spaces located on either side. Landscaped areas located outside the parking lot may not be used to meet the interior landscape requirement.
(3)
The required landscaping for parking lots shall be more or less evenly distributed throughout the parking lot, although adjustments may be approved by the Planning Board reviewing the landscape plan where the shape or size of the parking lot, the location of existing trees or other natural constraints reasonably prevent such distribution.
(4)
All landscaped areas, including permeable areas and drip lines around trees, and planting beds used for visual screening which abut any parking lot or vehicular travel area, shall be protected with curbs, parking blocks, or similar barriers sufficient to protect them from vehicular intrusion. Such areas shall have a minimum pervious area of 60 feet if they are for the purpose of housing landscaping including trees and 25 feet if they house landscaping other than trees. Landscaped islands will be a minimum of five feet in dimension and must be a minimum of nine feet wide when adjacent to parking spaces where a car door would open into the island.