ADU COST CALCULATOR · 2026
See your CA ADU numbers in under 2 minutes
Five inputs. A transparent cost, rent, and payback range built from real California ADU project data. No contractor spam.
- Honest ranges — no fake precision
- California-specific multipliers for every market
- Unlock full estimate with email + phone
01 // LOCATION
Where is your property?
California ADU costs and rents vary a lot by market. Use your city or a ZIP.
Popular California markets
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