A. Intent. See § 300-33: Planned residential development for details.
B. Permitted uses. The following uses are permitted as a planned residential development in an R-A, R-B, R-C and R-1 District and shall be limited to:
(1) Single-family detached, two-family, three- or four-family or multifamily dwellings, provided that at least 60% of the units are single-family detached dwellings.
(2) Nonresidential uses of a recreational, educational and institutional character to the extent they are designed to serve the residents of the planned residential development and are in accordance with §
300-33G and
H.
C. Minimum tract size. The minimum tract size for a planned residential development shall be 50 acres, provided, however, that planned residential development qualifying as housing for older persons within the meaning of the Federal Fair Housing Act, as amended, shall be permitted on a minimum tract size of 30 acres.
D. Density regulations.
(1) The maximum density computed over the entire tract shall not exceed the total number of units computed by the following method: Total tract acreage, minus all designated environmentally sensitive areas, shall be divided by the minimum lot size prescribed by the Zoning Ordinance for the zoning district in which the planned residential development is proposed, times a factor related to minimum lot size as follows:
Minimum Lot
(square feet) |
(acres) |
Factor |
80,000 |
1.83 |
2 |
40,000 |
0.91 |
1.75 |
20,000 |
0.45 |
1.5 |
Under 20,000 |
|
1.0 |
(2) For sites that are zoned PRD, the maximum density computed over the entire tract shall not exceed four units per acre of tract area.
(3) Density of each type of permitted development shall not exceed the following limits within a use area (i.e., any area of land allocated to a single category of land use):
(a) The maximum residential density for three- or four-family dwellings or multifamily dwellings use areas shall not exceed 10 dwelling units per acre and not more than six dwelling units are permitted in a single attached row.
(b) The maximum residential density for two-family dwellings use areas shall not exceed six dwelling unites per acre.
(c) The maximum residential density for single-family detached dwellings use shall not exceed three dwelling units per acre:
(4) Density of each type of permitted development shall not exceed the following limits within a use area (i.e., any area of land allocated to a single category of land use):
(a) The maximum residential density for three- or four-family dwellings or multifamily dwellings use areas shall not exceed 10 dwelling units per acre and not more than six dwelling units are permitted in a single attached row.
(b) The maximum residential density for two-family dwellings use areas shall not exceed six dwelling unites per acre.
(c) The maximum residential density for single-family detached dwellings use areas shall not exceed three dwelling units per acre.
(5) For the purposes of this Subsection
D, the acreage set aside under Section I as common open space shall not be included for computation of density of use areas for any residential or institutional land use, but may be included for computation of overall density.
E. General site planning.
(1) Existing trees shall be preserved wherever possible. The location of trees must be considered when planning the common open space, location of buildings, underground services, walks, paved area, playgrounds, parking areas and finished grade levels.
(2) The developer shall state the means whereby trees and other natural features will be protected during construction. Excessive site clearing of topsoil, trees and natural features before the commencement of building operations will be discouraged by the Board of Commissioners.
(3) The finished topography of the site shall adequately facilitate the proposed development without excessive earth moving and destruction of this and other natural amenities and shall be graded in accordance with the design standards of the Township of Marple Grading and Soil Erosion Ordinance.
(4) Natural features such as lakes, streams, topsoil, trees and shrubs shall be preserved and incorporated into the final landscaping of the development whenever possible.
(5) Seeding, sodding and other planting shall be applied to stabilize topsoil on steep slopes and enhance the appearance of open areas.
(6) Where adequate surface drainage is not possible by means of grading alone, a supplementary drainage system to be approved by the Township Engineer will be required.
(7) All housing shall be designed with regard to topography and natural features of the site. The effects of prevailing winds, seasonable temperatures, most scenic views and hours of sunlight on the physical layout and form of the proposed land use and building shall be taken into account.
(8) To create architectural interest in the arrangement and character of housing fronting streets, variations in housing setbacks will be encouraged.
(9) All housing should be located so as to provide adequate privacy and ensure natural light in all principal rooms.
(10) Routes for vehicular and pedestrian access and parking access shall be convenient without creating nuisances or detracting from privacy.
(11) The location and arrangement of buildings and open spaces must be shown so that the Board of Commissioners may review the intensity of land use and serve the public interest by protecting neighboring land uses.
F. Dimensional requirements. See
§ 300-33F for detailed information.
G. Maximum building coverage. The total ground area occupied by buildings and structures shall not exceed 15% of the total ground area of the planned residential development. For the purpose of this subsection, "total ground area" shall mean the aggregate of the maximum horizontal cross-section areas of all buildings on a lot above the ground level, measured at the greatest outside dimensions, excluding cornices, eaves, gutters or chimneys projecting not more than 18 inches, bay windows not extending through more than one story and not projecting more than five feet, one-story open porches projecting not more than 10 feet, steps and balconies.
H. Nonresidential uses and structures. Nonresidential uses shall be designed and intended only for the use of the residents of the planned residential development and the burden of proof shall be upon the applicant to prove that such is the case. No building designed or intended to be used in part or in whole for nonresidential purposes shall be constructed prior to the construction and completion of not less than 20% of the dwelling units proposed in the plan. Recreational and open space uses shall be incorporated into each phase or stage of development in the manner prescribed by the plan. Applicable recreational facilities shall be completed before construction of the next phase.
I. Common open space. See
§ 300-33I for detailed information.
See
§ 300-33: Planned residential development. for more detailed information about planned residential developments.