(A) Housing types. A PRD may contain more than 1 type of residential use.
(B) Design. Commercial uses may be permitted in a PRD outside areas otherwise regulated by zoning provided they are compatible and harmoniously incorporated into the design of the PRD.
(C) Maximum acreage. Commercial uses shall not occupy more than 15% of the total PRD acreage, and no such areas shall be counted in measuring the total lot area of the PRD for the purpose of computing maximum residential densities.
(D) Maximum density. The maximum number of dwelling units for the total PRD, excluding permitted nonresidential uses, shall be determined by the County Health Department and Maryland Department of Environment, however, under no circumstances may the maximum average number of dwelling units per acre exceed the following:
(1) In the R Classification: 1 dwelling unit per acre, regardless of the dwelling type, with an incentive of 1 additional dwelling unit for each 15 acres within the PRD if public or central water is available.
(2) In the TR Classification: 1 dwelling unit per acre regardless of the type of dwelling unless public sewer and water or county-approved central sewage and central water is available under which 6 dwelling units per acre could be permitted.
(3) In the TC Classification: 1 dwelling unit per acre regardless of the type of dwelling unless public sewer and water or county-approved central sewage and central water is available under which 6 dwelling units per acre could be permitted.
(4) In the SR Classification: 1 dwelling unit per acre regardless of the type of dwelling unless public sewer and water or county-approved central sewage and central water is available under which 4 dwelling units per acre could be permitted.
(E) Impervious surfaces. The total percent of the PRD site which is to be covered by buildings, roads, parking areas and other impervious areas shall not exceed 30% of the total lot area.
(F) Minimum open space. The percent of the PRD site to be included within common open space shall be no less than 25% of the total lot area. Common open space includes recreation areas, pedestrian uses areas, steep slopes, floodplains and easements free of paving and structures, but does not include parking areas, roads and yard areas within 25 feet of any residential building.
(Ord. —, passed 3-29-2005; Am. Res. 2010-5, passed 5-25-2010) Penalty, see § 159.999