The purpose of this Article XII is to provide for elderly affordable housing. The Elderly Affordable Housing District is established as a special district which overlays an existing residential zoning district. The Elderly Affordable Housing District permits the development of elderly affordable housing units subject to the specific regulations and requirements contained in this Article XII, which regulations and requirements shall govern even where they are inconsistent with or less restrictive than the other requirements of the Zoning Bylaw. The regulations of this Article XII relating to use, building and lot dimensions, development intensity, parking, ingress and egress, and site plan review shall only apply to an elderly affordable housing development and not to any other use that is allowed or permitted in the underlying zoning district.