§ 255-285.   Building setback, spacing, buffering and screening and open space requirements.
The following setback, spacing, buffering and screening and open space requirements shall apply to the historic preservation mixed residential community :
   A.    and width. There shall be no minimum size or dimension, as the required mix of residential will be governed by either or both Pennsylvania’s Planned Community Act and/or Uniform Condominium Act.
   B.   The minimum setback for along a private shall be 20 feet from back of curb or back of sidewalk.
   C.   The minimum distance between (not including decks, patios and accessory ) shall be 20 feet regardless of the orientation of the .
   D.    within the senior independent living campus may be interconnected by climate controlled and sprinklered walkways, either at ground level or elevated, appropriate for access between within the campus. Such interconnection shall not be deemed to violate the minimum distance between as set forth hereinabove.
   E.   Buffer and screening requirements. The buffer and screening provisions of § 255-90G shall apply; provided, these buffer and screening requirements shall apply solely to the perimeter of the property and do not establish any requirement for screening or buffering internally between the various proposed. Where portions of the property are not proposed for in proximity to existing adjoining residential , these buffer and screening requirements shall not apply if the property has existing woodlands, wetlands and that provide comparable buffer and screening for those areas.
   F.   Open space. At least 20% of the shall be preserved as open space to allow for the protection of sensitive , scenic views and other unique features. Portions of the open space shall allow for public access by trails or other means, while other areas may be restricted to the residents of the . The definition of open space contained at § 212-5 of the Subdivision and Land Development Ordinance [Chapter 212] shall apply.