An application for the alteration of a designated cultural resource or of property within a historic district shall not be approved unless the following conditions are found to exist:

The proposed work will not adversely affect the architectural features of the structure, where specified in the designation; nor will the proposed work adversely affect the special character or special historical, architectural or aesthetic interest or the relationship and congruity between the subject structure or feature and its neighboring structures and surroundings, where specified in the designation.

The proposed work shall also conform to such further standards as may be embodied in the designation of the historic district by resolution. (Ord. 4460 § 1, 2007)