Assisted living, general nursing or convalescent facilities shall be conditionally permitted in the designated zoning districts, provided that the facility has been granted appropriate licensure or certification from the applicable state agency and the following minimum requirements are met:
A.
Minimum site area: three acres.
B.
Minimum site frontage: 300 feet.
C.
Minimum perimeter setback: A minimum perimeter setback of 35 feet shall be maintained around the entire site. No structures or parking may be located within this area. In cases where the boundaries of the parcel abut a residential district or use, the perimeter setback shall be increased to 50 feet along the area abutting the residential district or use.
D.
Site coverage.
(1)
Building and structure coverage: 20% maximum.
(2)
Total impervious coverage: 30%, except that coverage may be increased to 50%, provided that the applicant demonstrates to the satisfaction of the approving authority that there will be no net increase over preconstruction conditions in the volume and rate of stormwater runoff.
G.
Minimum distance between buildings: 35 feet.
H.
Outdoor sitting areas. Outdoor sitting areas for residents or patients shall be provided which are well defined by walls, fences, hedges or other plantings designed to impart a sense of containment or security and to provide group privacy. Such sitting areas shall incorporate paved areas of adequate size to provide space for small groups of wheelchairs and garden furniture.
I.
Night lighting. Night lighting shall be provided for the safe and convenient use of streets, driveways, parking areas, walks, steps and other facilities.
J.
Landscaping.
(1)
All open areas other than those improved as or used for parking, loading, group recreation purposes and pedestrian and vehicular circulation shall be graded, planted, landscaped and properly maintained. Five percent of the total landscaped areas shall be screened on their periphery by means of an evergreen planting, a fence or decorative masonry wall having a height of 4 1/2 feet.
(2)
A landscaped buffer shall be provided when the subject use abuts a residential district or where any portion of the rear of the structure is visible from an adjacent street. The buffer shall be at least 10 feet wide and consist of evergreen trees, six to eight feet tall, planted in double alternating rows. Additional plantings may be required if the prescribed buffer landscaping is not sufficiently dense at the time of planting to mask the above-noted portions of the use from view from the street or adjoining property.
(3)
Existing natural tree cover may be substituted for the landscape requirements stipulated herein.