A. RM-1, RM-2 Districts: A minimum seventy five percent (75%) of the exterior walls of all buildings and structures, and of all additions to existing buildings and structures, hereafter erected upon any premises which are classified under the Zoning Ordinance of the City as RM-1 Low Density Multi-Family Residential District and RM-2 High Density Multi-Family Residential District shall be faced with brick, brick or masonry veneers, natural or case stone veneers or other masonry materials.
B. RA-1 District: A minimum of fifty percent (50%) of the exterior walls of all buildings and structures, and of all additions to existing buildings and structures, hereafter erected upon any premises which are classified under the Zoning Ordinance of the City as RA-1 Attached Residential District shall be faced with brick, brick or masonry veneers, natural or cast stone veneers or other masonry materials.
(1987 Code § 7-19)