Hillsborough Zoning Intelligence
Zoning, permitted uses, ADU rules, and development potential for Hillsborough, California. 3 districts analyzed.
Explore Hillsborough parcels, zoning, and hazards
Search any Hillsborough address, inspect parcels and zoning on the live map, and ask the AI what you can build - right here.
How is Hillsborough zoned?
Permitted uses vary by district. Search a Hillsborough parcel on the map above to see exactly what you can build there.
- Total zoning districts3
- Residential districts1
- Commercial districts1
Statewide law - applies to all California cities, not specific to Hillsborough.
- California state ADU lawApplies statewide
- SB-9 lot split eligibilityPer parcel review
- SB-79 (transit-oriented housing)Near transit, from Jul 2026
- Density Bonus Law (state)Eligible projects
- Local impact / permittingVerify with Hillsborough planning
Run a full feasibility study for any Hillsborough parcel - zoning, FAR, height limits, and development potential in seconds.
Try ArchiWise free →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 | Zone Type | Permitted Uses | Area |
|---|---|---|---|
RD-1 Traditional Residence District | - | - | 3,618.5 ac |
RD-2 Mixed Residence District | - | - | 325.7 ac |
RD-3 Governmental And Residential Mixed Use | - | - | 2.2 ac |
What are the building controls in Hillsborough?
Setback, height, FAR, lot area, and density controls enforced across Hillsborough zoning districts.
- Assorted
- Far control
- Lot control
- Multi control
- Density control
- Coverage control
- Pervious control
- Lot width control
- Rear setback control
- Side setback control
- Front setback control
- Building height control
Cities near Hillsborough
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Zoning data is pre-development intelligence, not legal advice. Verify with the Hillsborough planning department before acquisition or design.