A site, improvement or natural feature shall be eligible for listing on the Corona Heritage Inventory as a heritage property if the Planning Commission finds that all the following criteria are satisfied:
(A) An official survey describing the features, merits and quality of the site, improvement or natural feature has been prepared;
(B) The site, improvement or natural feature is identified as a potential resource to be conserved because of its age, and either its context in the neighborhood, its association with an historic event or period or its significance to the architectural, engineering, scientific, economic, agricultural, educational, cultural, social, artistic, political or military history of Corona.
(`78 Code, § 17.63.090.) (Ord. 2522 § 1, 2001.)