Stockton, CA Building Setbacks & Zoning: Lot Coverage Limits (2026)

120 defines site coverage as the ratio of the total footprint area of every structure on a lot, principal and accessory alike, to the net lot area, expressed as a percentage; garages, carports, covered patios, and roofed porches all count toward the footprint total. 030 sets the resulting caps by district: 25 percent maximum lot coverage in RE (Residential Estate), 70 percent in both RL (Low Density) and RM (Medium Density), and 80 percent in RH (High Density) lots outside downtown, rising to 100 percent for RH lots in the Greater Downtown and Downtown Core areas.

Several features are excluded from the coverage calculation entirely: unenclosed, unroofed decks, uncovered patio slabs, porches, landings, balconies, and stairways under 30 inches in height; eave and roof overhangs that project up to two feet from a wall; trellises with roofs at least half open to the sky through uniformly distributed openings; and swimming pools or hot tubs that are not enclosed in a roofed structure or deck and sit less than 30 inches above grade. Because accessory structures like sheds and detached garages count toward the footprint total, adding one to an already dense RE or RL lot can push a property over its district's coverage cap even if the setbacks are otherwise satisfied.