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

The City of Chino Hills limits how much of a lot may be covered by buildings through its Development Code (Title 16, Chapter 16.10, Residential Districts), with maximum lot coverage that increases with density. In the Low Density Residential (RS) zone, the most common single-family designation (7,200-square-foot minimum lot), the maximum building lot coverage is 40%. In the Medium Density Residential (RM-1) zone, coverage may reach 55%, and in the High Density (RM-2) and Very High Density (RM-3) residential zones, up to 60%. The Agriculture/Ranches (RA, 5-acre minimum) and Rural Residential (RR, 20,000-square-foot minimum) zones do not have a fixed maximum lot-coverage percentage (listed as N/A), being controlled instead by their large minimum lot sizes and setbacks. Lot coverage in Chino Hills generally measures the share of the lot covered by buildings. Because Chino Hills was largely developed through Planned Development (PD) tracts and includes extensive hillside areas, the applicable coverage figure can be modified by PD standards (Chapter 16.20) or interact with the hillside Building Envelope requirements, so the published zone figure is a baseline. These are city-specific standards, distinct from San Bernardino County rules. Owners planning additions or new construction should verify the combined coverage, setback and height limits for their exact zone with the Community Development Department.