Every front yard shall have a depth equal to or greater than that required for the district and shall extend across the full width of the front of the building site. Every rear yard shall have a depth equal to or greater than that required for the district and shall extend across the full width of the rear of the building site. Every side yard shall have a width equal to or greater than that required for the district and shall extend along the side lot line from the front lot line to the rear lot line. (Prior gen. code § 8-60.34)