The density and yard requirements of this Zoning Code are minimum regulations for each and every building existing at the effective date of this Zoning Code (Ordinance 1775, passed October 22, 1973) and for any building hereafter erected or structurally altered. Land required for yards or other open spaces about an existing building or any building hereafter erected or structurally altered shall not be considered a yard or lot area for more than one building.
(Ord. 1775. Passed 10-22-73.)