San Jose Setbacks & Height Limits — Residential Zones
Fact-checked against the City of San José Residential Construction guidance published in 2026 and current California ADU law on September 20, 2026.
San José's residential standards depend on the exact zoning district and any planned-development, hillside, historic, airport, Urban Village, or other applicable controls.
Current Residential District Table
The City's current Residential Construction guidance lists:
| Zone | Min. Lot Area | Front | Interior Side | Corner Side | Rear | Max. Height | Max. Stories |
|---|---|---|---|---|---|---|---|
| R-1-8 | 5,445 sq ft | 20 ft | 5 ft | 12.5 ft | 20 ft | 35 ft | 2.5 |
| R-1-5 | 8,000 sq ft | 20 ft | 5 ft | 12.5 ft | 20 ft | 35 ft | 2.5 |
| R-1-2 | 20,000 sq ft | 30 ft | 15 ft | 15 ft | 25 ft | 35 ft | 2.5 |
| R-1-1 | 43,560 sq ft | 30 ft | 20 ft | 20 ft | 25 ft | 35 ft | 2.5 |
| R-1-RR | 5 acres | 50 ft | 20 ft | 30 ft | 30 ft | 35 ft | 2.5 |
| R-2 | 5,445 sq ft | 15 ft | 5 ft | 10 ft | 25 ft | 35 ft | 2.5 |
The previous page contained several errors:
- R-1-8 front setback was listed as 25 ft instead of the current 20 ft;
- it described separate 5-ft one-story / 7-ft two-story side setbacks, while the current City table lists a 5-ft interior side setback;
- the street-side value was listed as 10 ft instead of the current 12.5 ft;
- R-2 was described with a 20-ft front and 20-ft rear yard instead of the current 15-ft front and 25-ft rear.
R-1-8 Does Not Mean an 8,000-Square-Foot Minimum Lot
The current City table lists 5,445 sq ft as the R-1-8 minimum lot area and 8,000 sq ft for R-1-5.
Do not infer minimum lot area from the final digit in the zone name.
Floor Area and Single-Family House Permit Criteria
San José's current guidance states that residential floor-area rules can trigger additional review. The City's materials describe a general 45% FAR / Single-Family House Permit criterion for the single-family districts, subject to current code and project conditions.
A project should therefore be checked for both setbacks/height and the applicable floor-area review threshold.
Planned Development and Other Controls
PD zoning can replace the base residential standards. Hillside, historic, airport, and Urban Village rules can also modify the result.
Always use the complete parcel zoning designation rather than assuming the R-1 table is sufficient.
California State ADU Law
California's current State ADU Law is codified at Government Code §§66310–66342, not the older §§65852.2/65852.22 cited on the previous page.
Current state law generally limits required side and rear setbacks for a new-construction ADU to 4 ft. ADU height varies based on statutory configuration and local implementation.
See the San José ADU rules page for ADU-specific guidance.
How to Check a Property
- Confirm the complete zoning designation in San José's zoning/GIS tools.
- Use the current Residential Construction district table.
- Check FAR and Single-Family House Permit criteria.
- Check PD, hillside, airport, historic, and Urban Village controls.
- Apply current state housing-law overrides separately where relevant.
- Confirm parcel-specific questions with Planning, Building and Code Enforcement.
Official Sources
- City of San José — Residential Construction guidance
- City of San José — current setback reference
- California HCD — 2026 Housing Law Fact Sheets
This guide is informational only. Current municipal code, state law, mapped zoning, and parcel-specific approvals control.
More about San Jose Zoning
Sources
- San Jose Municipal Code Title 20 — Zoning·library.municode.com·Accessed 2026-04-14·Direct link
- City of San Jose Planning, Building and Code Enforcement·sanjoseca.gov·Accessed 2026-04-14·Direct link
- San Jose GIS Zoning Map·csj.maps.arcgis.com·Accessed 2026-04-14·Direct link