[Ord. 2002-06, 11/11/2002, § 1305; as added by Ord. 2007-07, --/--/2007, § 3]
1. General Development Standards.
A. All applicable standards provided in Parts 14, 16, 17, 18, and 19 shall apply to any development utilizing the open space design option.
B. All proposed dwelling units in a development utilizing the open space design option shall be situated so that they are set back a minimum of 50 feet from the predevelopment perimeter boundary of the tract. Except where specifically approved through the conditional use process, principal buildings shall be located no less than 10 feet from any lot line; accessory buildings shall be located no less than five feet from any lot line; and, in no case shall zero-lot lines be allowed for either principal or accessory buildings. Existing dwellings and dwellings resulting from the conversion of existing buildings shall be exempt from this requirement.
C. While conformance to the area and bulk regulations in Subsection
4, is not dependent upon any specific minimum lot area or dimensions, the applicant shall be required to demonstrate to the satisfaction of the Board of Supervisors, that any lots established under the provisions of this section are of appropriate size and shape, relative to the following:
(1) The size and types of dwellings to be erected thereon.
(2) Establishment of suitable private yard areas for all residences.
(3) Management of any adjacent open space areas.
In addition, lots shall meet the requirements for net lot area, particularly the required contiguous land area unencumbered by environmentally constrained lands. Lots proposed to utilize on-lot sewage disposal and water supply systems shall be of sufficient size to accommodate the separation distance requirements as specified in the Township Subdivision and Land Development Ordinance [Chapter 22]. |
D. Placement of buildings and design of internal circulation systems shall minimize adverse impact to existing Township roads including, but not limited to, placement of buildings in or near line of sight triangles or placement of new street intersections at unsafe points on Township roads.
E. Architectural Design. It is not the intention of the Township to govern specific architectural design, nor to link conditional use approval to any specific architectural design criteria. However, the Township wants to promote a consistency in architecture between the design of the development and the implementation of the development on a given tract of land. In this context, the following standards apply:
(1) The applicant shall provide architectural renderings illustrating the general character of the intended exterior design, including principal exterior materials of dwellings.
(2) Where the Board determines that architectural design as presented by the applicant is an essential means by which the proposed development complies with the objectives of this Part, the Board may require, as a condition of conditional use approval, establishment of appropriate means to guarantee general adherence to the intended architectural character.
(3) The applicant shall address proposed means of long-term maintenance of exterior building facades and landscaping to the satisfaction of the Board including where applicable, establishments of covenants and/or homeowners association documentation. In granting conditional use approval, the Board may establish appropriate conditions to require provision for long-term maintenance of exterior building facades and landscaping.
(4) The applicant shall demonstrate to the satisfaction of the Board that the intended architectural character is compatible with the surrounding neighborhoods or is adequately screened from view from neighboring properties.
F. Stormwater Management. A preliminary written analysis describing how stormwater will be handled on the site shall be submitted with the conditional use application for review. Such an analysis shall incorporate preliminary design calculations to demonstrate substantial compliance with the stormwater management requirements of the Subdivision and Land Development Ordinance [Chapter
22]. This preliminary analysis shall be prepared by a professional engineer registered in Pennsylvania.
2. Historic Resources.
A. Historic resources shall be preserved, to the greatest degree feasible, through incorporation into development plans and design, including historic structures, ruins or sites, historic road or other transport traces, paths and trails, and any other historic landscape features. Historic dwellings preserved with the development of properties through the open space design option shall be exempted from the total dwelling calculation for the property. For purposes of this section, historic dwellings comprise original farmhouses on farmsteads or residential dwellings, but excluding tenant apartments or accessory dwellings; such historic dwelling shall be as identified on the Historic and Resources Map as part of Part
24, "Historic Preservation.".
B. The restrictions of Subsection
4A(4), relating to structures within 25 feet of required common open space, shall not apply to the historic dwelling or structures accessory to the historic dwelling, subject to the following:
(1) The historic dwelling including related accessory buildings shall be located on a separate lot.
(2) The minimum lot area shall be two acres, and the maximum lot area shall be 10 acres unless in the discretion of the Board of Supervisors a lot area greater than 10 acres is deemed to be more desirable under the specific circumstances.
(3) The lot shall be deed restricted from further subdivision and from any additional dwelling, and the final, recorded subdivision plan shall contain a note with such restrictions.
(4) Accessory uses and structures shall be permitted on the lot in accordance with the underlying zoning district regulations, subject to the restriction against any additional dwelling.
3. Open Space and Natural Resource Protection Standards. In utilizing the open space design option, the proposed design shall limit disturbance of all open space and natural resources identified in the required site analysis and environmental impact assessment and accompanying material submitted in accordance with Part
14 and §
27-1814.
A. The applicant shall comply with the specific objectives of the East Fallowfield Township Open Space, Recreation and Environmental Resources Plan (1993) and the Lower Brandywine Scenic Rivers Evaluation and Management Study (1987).
B. The plan shall comply with the natural resource protection standards of Part
14.
C. The applicant shall demonstrate maximum conservation of scenic views from public roads and neighboring residential properties by utilizing existing vegetation, structures, changes in topography or providing landscaping to screen proposed development from view. In considering conditional use approval, the Board may reduce screening requirements where the applicant submits individual building design plans with sufficient detail to demonstrate, in terms of how such buildings may be viewed from public roads or neighboring residential properties, reasonable replication of proportional relationships of form and massing evident in existing historic resources, including ratios of height to width, length of individual facade segment, roof pitch, relative size and placement of windows, doors and other facade details. The distance from point of public or neighboring view also may be considered as a mitigating factor in review of plans for buildings within such view.
4. Open Space Designation and Management Standards.
A. Areas designated as common open space shall be consistent with the East Fallowfield Township Open Space, Recreation and Environmental Resources Plan (1993). The location and layout of common open space shall be configured so as to serve residents adequately and conveniently and to promote adherence to resource protection standards in Subsections
2 and
3, and shall further conform to the following conditions:
(1) No more than 30% of the gross required common open space area shall be comprised of the features set forth in Subsection
1B.
(2) A minimum of 15% of the minimum required unconstrained common open space shall be designated and physically prepared, graded and made ready for use for active recreational open space. The submitted plan shall indicate the types of active recreational facilities and activities to be provided, as part of the conditional use application and review process.
(3) A minimum of 5% of the minimum required unconstrained common open space shall be comprised of civic greens which shall not exceed 8% slope in any direction, and shall be designed in accordance with the examples in Appendix 27-13-A.
(4) No building or structure on a lot shall be within 25 feet of any common open space area.
(5) No common open space shall be less than 45 feet in width or depth in the narrowest dimension at any point.
(6) No common open space shall be occupied by streets, parking areas, structures (other than those related to recreational use), maintenance areas or storage facilities associated with sewage disposal or water supply systems, or any above ground or below ground utilities, except as provided in Subsection
4B(5).
B. Areas designated for open space purposes may be used for any of the following:
(1) Crop or pasture land, subject to submission of conservation plan approved by the Chester County Conservation District.
(2) Woodland, meadow, wetland, wildlife habitat, game preserve or similar conservation oriented area.
(3) Public or private outdoor active and passive recreation areas for use by residents, provided such use is not for commercial purposes, and provided the common open space is unconstrained.
(4) Civic greens, provided the common open space is unconstrained.
(5) Land application of wastewater, where the Board of Supervisors is satisfied that adequate provision(s) for the long-term management and maintenance of the wastewater system are guaranteed. Standards for placement and maintenance of community wastewater systems shall be as described in the general ordinances of the Township, and Subsection
8.
C. Common open space shall be interconnected with common open space areas on abutting parcels wherever possible. Provision for recreational trail access is encouraged.
D. Where deemed appropriate by the Board of Supervisors, common open space areas dedicated to public use shall be provided with sufficient perimeter parking, and with safe and convenient access by adjoining street frontage or other rights-of-way or easements capable of accommodating pedestrian, bicycle and maintenance vehicle traffic, and containing appropriate access improvements.
E. Community and public sewage systems (as depicted in Subsection
8), stormwater management and/or water supply facilities may be located entirely or partially within common open space areas. However, they will not be counted towards the required minimum common open space. Such facilities shall be placed for use by the specific development of and on the site where the open space is located. Where sewage service and/or water supply facilities are so located, easements satisfactory to the Board of Supervisors shall be established to require and enable maintenance of such facilities by the appropriate parties. Stormwater facilities shall demonstrate appropriate use of best management practices (as defined in the Pennsylvania Handbook of Best Management Practices for Developing Areas, (1998)).
F. To the extent applicable, required common open space may be utilized to meet requirements of §
22-627, "Public Facilities and Open Space," of the Subdivision and Land Development Ordinance [Chapter
22], where all criteria of this section and §
22-627 are met, and shall be placed so as to be an essential component or focal point of the development design.
G. Except to provide for permitted open space uses, common open space shall be restricted from further subdivision or development by deed restriction, conservation easement or other agreement in a form acceptable to the Township, and duly recorded in the Office of the Recorder of Deeds of Chester County.
H. The provisions for ownership and maintenance of common facilities established in §
27-1812, shall apply to any common facilities and common open space created under this Part. In addition to the means of ownership permitted under §
27-1812, common open space may be retained in ownership by the applicant or may be transferred to other private parties, including a qualified land trust, subject to compliance with all standards and criteria for restricted open space herein as approved by the Board of Supervisors.
I. Where development under the open space design option is planned to occur in two or more development phases, a proportionate amount of designated common open space shall be permanently recorded with each phase.
5. Required Open Space Management Plan.
A. Any application for conditional use approval under this Part shall contain a conceptual plan for the long-term management of the common open space which is to be created as part of the development. Such a plan shall be prepared by a landscape architect registered in Pennsylvania, and shall include a narrative discussion of:
(1) The manner in which the common open space will be owned and by whom it will be managed and maintained.
(2) The conservation, land management and agricultural techniques and practices which will be used to conserve and perpetually protect the restricted open space, including conservation plan(s) approved by the Chester County Conservation District, where applicable.
(3) The professional and personnel resources that will be necessary in order to maintain and manage the property.
(4) The nature of public or private access that is planned for the restricted open space.
(5) The source of money that will be available for such management, preservation and maintenance on a perpetual basis.
B. The adequacy and feasibility of this conceptual management plan, as well as its compatibility with the open space preservation objectives of Subsections
2 through
4, may be factors in the establishment of appropriate conditions of approval of the conditional use application by the Board of Supervisors. In addition, the Board of Supervisors shall require an escrow fund for open space maintenance be established until sufficient numbers of housing units are sold and the homeowners association has collected sufficient funds for maintenance.
C. The conceptual management plan shall be transformed into a more detailed open space management plan, which shall be prepared by a landscape architect registered in Pennsylvania, and presented to the Township for review and approval with the preliminary subdivision and land development plan. The Board of Supervisors shall require that the management plan be recorded, with the final subdivision and land development plans, in the Office of the Recorder of Deeds of Chester County. In order to allow for the changing needs inherent in the perpetual management of land, the management plan shall contain a provision to the effect that it may be changed by written application to the Board of Supervisors. Approval of such application by the Board shall not be unreasonably withheld or delayed, provided the proposed change is feasible and consistent with the purposes of preservation of open space set forth in this Part and provided the plan for such change avoids a likelihood of the obligation for management and maintenance of the land falling upon the Township without the consent of the Board of Supervisors.
6. Open Space Performance Bond. All landscape improvements, plantings, accessways, recreational facilities, and civic greens within designated open space areas shall be provided by the developer. A performance bond or other securities shall be required to cover costs of all installation of proposed improvements in the common open space area. The performance bond or other security shall be in the same form and adhere to the same conditions as otherwise required for proposed improvements under §
22-412 of the Subdivision and Land Development Ordinance. An appropriate portion of the performance bond or other security will be applied by the Township should the developer fail to install the landscape, planting, accessways, recreational facilities, and civic greens.
7. Standards and Criteria for Individual Sewage Disposal Leaching Field Within Common Open Space.
A. No leaching field shall be permitted in a significant woodland, as described in Subsection 1B(1).
B. No leaching field shall be located on a slope that is 12% or steeper.
C. No leaching field shall be within any Flood Hazard District, wetlands, and Zone One riparian buffer.
D. Leaching fields shall be separated by a minimum distance from the following features:
(1) One hundred feet from any water supply well.
(2) One hundred feet from any mine or sink holes.
(3) Fifty feet from any streams and ponds.
(4) Ten feet from any slope of 25% or greater.
(5) Ten feet from any buildings, roads and driveways.
(6) Ten feet from any property line.
E. A reserved replacement area for all leaching fields shall be designated to provide a backup area if ever needed in the future.
F. A declaration of covenants, easements and restrictions shall be submitted by the applicant for review by the Township Solicitor. Said declaration shall set forth the management and maintenance requirements for any individual off-lot sewage disposal system.
8. Standards and Criteria for Community and Public Sewage Disposal Systems Within Common Open Space.
A. No community and public sewage disposal system shall be permitted on a significant woodland, as described in Subsection 1B(1).
B. No community and public sewage disposal system shall be permitted in a visually significant landscape, as described in Subsection 1B(2).
C. No community sewage disposal shall be permitted on a slope that is 12% or steeper.
D. No community sewage disposal shall be within any Flood Hazard District, wetlands, and Zone One riparian buffer.
E. All community and public sewage disposal systems shall be contained in a rectangular-shaped area that is defined by metes and bounds, and shall not be in irregular strips of land.
F. Community sewage disposal systems shall be separated by a minimum distance from the following features:
(1) One hundred feet from any water supply well.
(2) One hundred feet from any mine or sink holes.
(3) Fifty feet from any streams and ponds.
(4) Ten feet from any slope of 25% or greater.
(5) Ten feet from any buildings, roads and driveways.
(6) Ten feet from any property line.
G. A reserved replacement area for all community sewage disposal systems shall be designated to provide a backup area if ever needed in the future.
H. A declaration of covenants, easements and restrictions shall be submitted by the applicant for review by the Township Solicitor. Said declaration shall set forth the management and maintenance requirements for any community sewage disposal system.