Atherton, 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 5 districts.
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What's in the Atherton dataset
Every field below is available for any Atherton parcel, on the map and through the AI.
Zoning
- District code & full name
- Parcel boundary & APN
- All 5 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 Atherton
Share of Atherton's zoned land where each use is permitted.
- Single-family
- 88.52%
- Multi-family
- 93.05%
- ADU
- 92.60%
- Storage & warehouses
- 4.08%
Atherton, 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 |
|---|---|---|---|
NZ No Zoning | - | 74.6 ac | Standards & uses → |
PFS Public Facilities And Schools District | - | 132.6 ac | Standards & uses → |
POS Park And Open Space District | - | 165.9 ac | Standards & uses → |
R-1A Residential District | - | 2,725.6 ac | Standards & uses → |
Showing 4 of 5 districts
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Each one runs against the live Atherton dataset and returns the districts, standards and approvals involved.
California zoning maps
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Zoning, overlays, hazards, and what the code actually allows - in one place.
Zoning data is pre-development intelligence, not legal advice. Verify with the Atherton planning department before acquisition or design.