Zoning · Glossary
Setback
Updated 2026-07-18
Setback is the required minimum distance between a building, structure, or use and a property line, road, waterway, hazard, or other feature. California setbacks come from local zoning, building and fire codes, easements, septic rules, and special overlays.
What it means
Front, side, and rear setbacks define where construction may occur, while special setbacks can protect wells, streams, faults, or agricultural uses.
Why it matters for land decisions
Overlapping setbacks can sharply reduce the usable building area on small or irregular parcels.
- Use surveyed boundaries.
- Check every applicable source.
People also ask
Is a setback measured from the road edge?
Not necessarily. It may be measured from a property line, right-of-way line, centerline, or other defined point.
Can a setback be reduced?
Some local codes allow exceptions or variances when required findings are met; approval is not guaranteed.
Official sources
Related terms
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