Official permit data from Marin County — updated Mon, Wed & Fri from the county permitting office.
Marin County, CA issued 389 building permits in October 2026, up 0% from the prior month. The most active zip code was 94941 with 106 permits. Maintenance was the top permit type, making up 67% of all permits issued.
Top 10 zip codes by permit volume — October 2026
October 2026 · Marin County, CA
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