Access 46,588 building permits issued in Marin County, California through a single REST API. Refreshed daily from the official Marin County open data portal and normalized into a consistent schema.
Most common permit types issued in the last year.
The 10 most recent permits issued in Marin County, California. Full dataset available via REST API.
| Issued | Permit # | Address | Category | Description |
|---|---|---|---|---|
| 2026-04-29 | 181595 | 539 NORTHERN AVE, MILL VALLEY, CA 94941 | Other | Legalization Of Completed Work Performed W/O Permits: Convert Unfinished Space On ... |
| 2026-04-28 | 181590 | 215 S RIDGEWOOD RD, KENTFIELD, CA 94904 | HVAC | Convert Conditioned Laundry & Storage Rms To Bedrm & Bath; (N) Windows (N)... |
| 2026-04-28 | 181589 | 250 SEADRIFT RD, STINSON BEACH, CA 94970 | Pool | Demolish (E) Swimming Pool, (E) Spa To Remain; Repairs To Spa As Needed |
| 2026-04-28 | 181588 | 22 KEHOE WAY, INVERNESS, CA 94937 | Fence | Detached Garage; Retaining Wall |
| 2026-04-28 | 181586 | 403 LAVERNE AVE, MILL VALLEY, CA 94941 | Renovation | Replace Existing Deck - No Change In Size |
| 2026-04-27 | 181581 | 459 LIVE OAK DR, MILL VALLEY, CA 94941 | Other | 4 Decks To Have Guardrails And Deck Boards Replaced; 1 Deck To Be Replaced In Kind |
| 2026-04-27 | 181580 | 30 FAWN CT, SAN ANSELMO, CA 94960 | Other | Structural Window/Door Replacement; New Wet-Bar In Closet |
| 2026-04-24 | 181568 | 800 REDWOOD HWY FRONTAGE RD #805, MILL VALLEY, CA | Other | Tenant Improvement - Club Pilates |
| 2026-04-24 | 181524 | 704 CABIN DR, MILL VALLEY, CA 94941 | Other | Demo Only: Remove Water Damaged Drywalland Subfloor - No New Work B W O P |
| 2026-04-24 | 181569 | 875 MARIN DR, MILL VALLEY, CA 94941 | Addition | Addition; Remodel Dining/Living Room; Deck; Covered Deck |
Query Marin County, California permits with a single HTTP request. Returns JSON with address, category, status, dates, and full description.
# Search all Marin County permits issued this month curl -H "X-API-Key: YOUR_KEY" \ "https://api.permit-stack.com/v1/permits/search?city=Marin%20County&state=CA&issued_after=2026-04-01"
Related coverage in California and nationwide.
We ingest data directly from the official Marin County open data portal (Tyler Data & Insights (Socrata)) daily. This is the same source used by the city's own public dashboards, normalized into a consistent JSON schema across our U.S. jurisdictions.
Our automated ingestion runs daily at 03:00 UTC. The latest permit in our database for Marin County, California was issued on April 29, 2026. Permit backlogs on the city side may mean some permits take a few days to appear.
Yes — our free tier includes 1,000 requests per day, enough to search and filter Marin County permits interactively. Sign up for a free API key to get started.
Yes. Paid plans support CSV export and periodic webhooks for changed permits.
Most Marin County permits are issued on the same day they are filed, reflecting electronic submission and same-day processing for routine permit types. Larger or more complex projects (new construction, major additions) often take longer.
Free tier covers 1,000 requests per day. No credit card required.
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