The board of historic preservation shall, upon an investigation as it deems necessary, make a determination as to whether a nominated historic property, structure or area meets one or more of the following criteria:
(a) It is associated with events that have made a significant contribution to the broad patterns of city history;
(b) Its identification with a person who significantly contributed to the development of the community, county, state or country;
(c) Its embodiment of distinctive characteristics of a type, period or method of construction;
(d) It represents the work of a master or possesses high artistic values;
(e) It represents a significant and distinguishable entity whose components may lack individual distinction; or
(f) It has yielded or may be likely to yield information important in prehistory or history.
(1992 Code, § 19.5-22) (Ord. 14-86, passed 2-10-1986)