Santa Clara R1 zones typically cap building lot coverage at 40 percent, with additional floor area ratio and impervious surface limits for stormwater control.
Santa Clara zoning code limits lot coverage for primary and accessory structures in single-family zones to approximately 40 percent of the lot area, measured as ground floor footprint per SCCC Title 18. Floor Area Ratio (FAR) limits total conditioned floor area to around 0.45 on typical R1 lots, discouraging oversized homes relative to neighborhood context. Impervious surface coverage including driveways, patios, and pools is tracked separately under the Municipal Regional Stormwater Permit to control runoff. ADUs up to 800 square feet are exempt from lot coverage limits per state law if 4-foot setbacks are observed. Design review may apply when coverage approaches maximums to address massing and privacy.
Contact your local code enforcement office for specific penalty information.
Santa Clara, CA
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Side-by-side rule comparisons with other cities in Santa Clara County.
See how other cities in Santa Clara County handle lot coverage limits.
See how Santa Clara's lot coverage limits rules stack up against other locations.
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