ADU permit guide for Corte Madera, California
Marin County, CaliforniaReviewed August 28, 2026
Use this page for early ADU permit planning in Corte Madera. A verified local process guide is not available yet, so confirm every step and fee with the city before you submit.
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Permit fee planning by size
GetYourPermit research · 1 published reference line
| ADU size | Researched range |
|---|---|
| 600 sq ft | $6,200 – $14,750 |
| 800 sq ftimpact-fee band | $9,300 – $22,350 |
| 1,000 sq ft | $11,350 – $27,300 |
| 1,200 sq ft | $13,350 – $32,050 |
Getting the permit
We have not written Corte Madera’s permit guide yet. The official sources below are the right place to start.
View official permit starting points