(A) Measurement. Site coverage is measured as the total horizontal area covered by all buildings and structures on a lot, divided by the lot area. Total horizontal building area is measured from the exterior surface of the exterior walls of all principal and accessory buildings on the lot. See Figure 112-5.
(B) Included in calculation. The site coverage calculation includes the following:
(1) All primary structures;
(2) All accessory structures (e.g., carports, garages, patio covers, storage sheds, trash dumpster enclosures and the like); and
(3) Bay windows, cantilevered upper floors and other exterior architectural projections that are supported from the ground.
Figure 112-5 Site Coverage
(C) Excluded from calculation. The site coverage calculation does not include the following:
(1) Unenclosed and unroofed decks, uncovered patio slabs, landings, driveways, sidewalks, flatwork, balconies, stairways and other similar unenclosed/unroofed structures less than 18 inches in height and six feet or less for railings;
(2) Projecting windows and cantilevered upper floors, and other architectural projections that are not supported from the ground;
(3) Eaves and roof overhangs projecting less than three feet from a wall;
(4) Areas covered by a trellis or similar structure where at least 50% of the area is open to the sky with uniformly distributed openings;
(5) Swimming pools and hot tubs that are not enclosed in a roofed structure; and
(6) Unenclosed building service equipment and mechanical appurtenances, such as exterior water heaters, air conditioning units and chimneys.
(Ord. 885-C.S., passed 5-21-19; Am. Ord. 902-C.S., passed 8-18-20)