Planned unit developments shall be encouraged, but they shall conform to the regulations of the Zoning Ordinance or to the following modifications of the regulations found elsewhere in this Ordinance.
(a) "SR" or "R" Districts. In "SR" or "R" Districts, a planned unit development shall conform to the following requirements:
(1) Intensity of use. The maximum net density for planned unit developments shall conform to the following schedule of densities:
District | Single Dwellings Only | Single and Two-Family Dwellings | One, Two and Multiple Family Dwelling Units | Multiple Dwellings Only |
"SR" | 3 | 5 | 6 | 8 |
"R-1" | 5 | 7 | 8 | 10 |
"R-2" | 6 | 8 | 10 | 14 |
"R-3" | 7 | 9 | 12 | 18 |
The calculation of residential density shall include all land devoted to residential use, and shall further include easements for utilities except major facilities which do not serve individual dwellings, minor surface drainage channels, recreation space and other areas provided as common open space, including land dedicated to public use except required street rights of way.
(2) Open space area. Area included in the calculation of residential density shall include open space or public use, arranged and restricted by easement, covenant deed or dedication and not included in the minimum yard space required for dwellings or used to provide the required off-street parking and shall conform to the following minimum percentages of the area included in the calculation of residential density:
"SR" Districts 10%
"R-1" Districts 15%
"R-2" Districts 20%
"R-3" Districts 25%
(3) Public use. Public use shall apply to those areas devoted to uses that will give benefit to the occupants of the dwelling unit. Such public use may include but is not limited to educational and recreational facilities, flood protection, or other public improvements necessary to the health, safety and welfare of the residents.
(4) Common use. Common use may include but is not limited to landscaped areas, recreational facilities or other common use as will provide amenity to the area.
(5) Open space ownership. Open space, including areas devoted to public use, recreational facilities and other common use shall be held in corporate ownership by the owners of the project area building sites and the developer shall incorporate into the protective covenants and/or deed restrictions, a clause giving an interest in such land to each owner who buys property within the development. Property owners shall be given due notice as to their responsibilities for the care and maintenance of open space, including the manner in which charges and/or assessments are to be made. Property owners shall also be advised of their responsibility in the event of a default of the property owners' association with respect to the proper maintenance of the open space.
(6) Ownership by public agency. As an alternate to a property owners' association the developer may deed the land to a public agency, subject to its legal acceptance and agreement to maintain the open space in lieu of a property owners' association. Dedication of such land shall convey a clear and unencumbered title to the public agency.
(7) Lot widths; setbacks. Lot widths and setbacks may be varied due to the variety of structural designs, but in no case shall a structure be closer to the street or public way than twenty-five feet. If lot widths for single-family or two-family residential lots are varied by the developer, he shall enter into an agreement with the Municipality that the property owners within a planned unit development of this nature shall be assessed equally for any improvements which may be by assessment, rather than by a front footage basis.
(8) Commercial use. Commercial uses such as are permitted in a "B-2" Neighborhood Business District, may be included in a planned unit development for residences provided they form a small commercial center to primarily serve the planned unit development.
(b) "B" Districts. In "B" Districts, a planned unit development may be permitted in accordance with the following provisions if the Planning Commission is satisfied: that the proponents of the development are financially able to carry out the proposed project; that they intend to start construction within one year of the approval of the project and necessary change in zoning; and that they intend to complete it within a reasonable time as determined by the Commission.
(1) Commercial buildings and establishments shall be planned as groups having common parking areas and common ingress and egress points in order to reduce the number of potential accident locations at intersections with thoroughfares. In planning these groups of buildings or establishments, no yard space will be required between uses within the groups; however, the yard requirements must be observed at the edge of the complete development. Planting screens or fences as provided elsewhere in this ordinance shall be required.
(2) Off-street parking and loading requirements shall be observed as required. Group parking facilities shall provide spaces equal to the number of spaces required for each use to be developed.
(3) The plan of the project shall provide for the integrated and harmonious design of buildings, and for adequate and properly arranged facilities for internal traffic circulation, landscaping and such other features and facilities as may be necessary to make the project attractive and efficient from the standpoint of the developer as well as from the standpoint of the adjoining and surrounding existing or potential developments.
(4) The ground area occupied by all the buildings shall not exceed in the aggregate twenty-five percent (25%) of the total area of the lot or tract.
(c) "M" Districts. In "M" Districts, a planned unit development may be permitted in accordance with the following provisions:
(1) Industrial uses and parcels shall be developed in park like surroundings utilizing landscaping and existing woodlands as buffers to screen lighting, parking areas, loading areas or docks and/or outdoor storage of raw materials or products. A planned industrial area shall provide for the harmony of buildings and a compact grouping or groupings in order to economize in the provisions of such utility services as are required. Thoroughfares shall be kept to a minimum throughout a planned industrial area in order that those thoroughfares which are constructed may be built to the highest possible standards.
(2) Certain types of commercial uses, such as a restaurant, central secretarial or stenographic pool, or other business service type uses, repair services, or clinics as may form a small commercial center to serve the needs of the industries or their personnel, may be permitted in a planned industrial area.
(3) Off-street parking and loading areas shall conform to the provisions of this Zoning Ordinance, and all screening requirements shall be observed.
(4) No building shall be less than seventy-five feet distant from any boundary of the tract on which the office, research or industrial development is located. All intervening spaces between the street pavement and the right-of-way line and intervening spaces between buildings, drives, parking areas and improved areas shall be landscaped with trees and plantings and properly maintained at all times.