Section 175-87 BOUNDARIES OF HISTORIC DISTRICTS OR LANDMARKS.
A. The boundaries of an historic district or overlay area shall, in general, be drawn to include areas containing buildings or places in which historic events occurred or having special public value because of notable architectural or other features relating to the cultural or artistic heritage of the community of such significance as to warrant conservation and preservation. The district may include either individual buildings or places of such character and a reasonable distance beyond, or it may include areas or groupings of structures which have significance relative to their patterns of development or social and economic or architectural interrelationships even though some structures in the area might not possess significant merit when considered alone. In any case, the location of the district shall be based upon careful studies that describe the characteristics of the area and support the purposes of conservation and preservation.
B. The boundaries of an historic district shall conform to the boundaries of individual lots of record. Where a street is proposed as an historic district boundary, the edge right- of-way adjoining the district shall be deemed the district boundary.
C. Historic districts are created as special overlay districts to be superimposed on other zoning districts contained in these regulations, and are to be so designated on the Official Zoning Map. The uses, housing types, minimum lot requirements, minimum yard requirements, maximum height and accessory uses and accessory signs shall be determined by the regulations applicable to the other districts over which the historic districts superimposed, except as these other districts may be modified by application of the regulations in the historic district.
D. A map delineating the adopted boundaries of each historic district shall be maintained in the office of the Zoning Administrator.