Hillsborough, California Zoning Map
Zoning, overlays and hazards on every parcel — and an answer to what the code actually lets you build. Compiled from current zoning data for all 3 districts.
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What's in the Hillsborough dataset
Every field below is available for any Hillsborough parcel, on the map and through the AI.
Zoning
- District code & full name
- Parcel boundary & APN
- All 3 districts mapped
Building controls
- Maximum building height
- Floor area ratio (FAR)
- Front setback
- Side setback
Overlays, hazards & AI
- Flood hazard & environmental layers
- Ask the AI about any parcel
- Powered by live parcel data
Where uses are permitted in Hillsborough
Share of Hillsborough's zoned land where each use is permitted.
- Single-family
- 99.94%
- Multi-family
- 8.31%
- ADU
- 100.00%
Hillsborough, California Zoning Districts: What Do They Mean?
Zoning districts are areas regulated by specific laws that determine land use, building types, and development rules. Each district below shows its zone type and which uses it permits.
| Zone Code | Category | Area | Details |
|---|---|---|---|
RD-1 Traditional Residence District | - | 3,618.5 ac | Standards & uses → |
RD-2 Mixed Residence District | - | 325.7 ac | Standards & uses → |
RD-3 Governmental And Residential Mixed Use | - | 2.2 ac | Standards & uses → |
Showing 3 of 3 districts
Start from what you're trying to build
Each one runs against the live Hillsborough dataset and returns the districts, standards and approvals involved.
California zoning maps
Analyze any Hillsborough parcel in 60 seconds
Zoning, overlays, hazards, and what the code actually allows - in one place.
Zoning data is pre-development intelligence, not legal advice. Verify with the Hillsborough planning department before acquisition or design.