ADU permit guide for Monterey, California
Monterey County, CaliforniaReviewed August 29, 2026
Use this page for early ADU permit planning in Monterey. 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 · 5 published reference lines
| ADU size | Researched range |
|---|---|
| 600 sq ft | $6,474 – $13,245 |
| 800 sq ftimpact-fee band | $11,045 – $22,630 |
| 1,000 sq ft | $13,340 – $27,150 |
| 1,200 sq ft | $15,470 – $31,335 |
Getting the permit
We have not written Monterey’s permit guide yet. The official sources below are the right place to start.
View official permit starting points