The neighborhood conservation guidelines, historic overlay zone standards, and other development regulations are to be used in the review of construction and development within designated historic overlay zones. The neighborhood conservation guidelines may be amended as necessary by the planning director, following recommendation from the historical commission, to further the goal of preserving the historic character of the neighborhood. The city shall maintain photographs and illustrations of developments or design elements that are consistent with the neighborhood conservation guidelines. (Ord. 3774-20 § 5(P) (Exh. 3), 2020.)