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

2, Property Development Regulations for the Residential District, lists a 'Maximum Site Coverage' row that runs 20% for RS-E (Single-Family Estate), 50% for RS-L (Single-Family Low Density), and 60% each for RM-L, RM-M and RM-H, the three multifamily districts. ' That default-to-minimum rule is why the table explicitly labels this line 'Maximum,' flagging it as a ceiling rather than a floor, unlike the lot size, setback and frontage figures in the same table that operate as minimums. The same table pairs coverage with density: RS-E carries a 1-to-2-unit-per-acre range and a half-acre minimum lot, while RM-H allows 30 to 55 units per acre on a 15-acre minimum site, so the 60% ceiling in the high-density district applies to a very different building scale than the 20% ceiling in the estate district.

700 requires the Community Development Director or Chief Building Official to verify that property regulations, including site coverage, are met, and a certificate of occupancy cannot issue until that verification is recorded following the final building permit site inspection.