Access 152,617 building permits issued in San Mateo, California through a single REST API, normalized into a consistent schema. Data through August 7, 2026.
Most common permit types issued in the last year.
Drill into the most common permit categories in San Mateo.
The most active contractors by permit volume in San Mateo, with a profile of each one's permit history. Counts are permits we hold for San Mateo.
Permit activity for individual ZIP codes in San Mateo, newest first by volume.
Every permit we hold for one San Mateo address (roof, HVAC, solar, additions, with dates and contractors) in a single call to /v1/property/history. Used by lenders for collateral review, insurers for roof and system age, and real estate teams for due diligence.
The 10 most recent permits issued in San Mateo, California. Full dataset available via REST API.
| Issued | Permit # | Address | Category | Description |
|---|---|---|---|---|
| 2026-08-07 | MEP-2026-304081 | 511 S ELDORADO ST | Electrical | DUPLEX: SEWER LATERAL REPLACEMENT FROM THE FRONT OF THE HOUSE TO THE MIDDLE OF THE... |
| 2026-08-07 | FR-2026-304066 | 2708 TIBURON ST | Fire alarm | Installation of a new NFPA 13D automatic fire sprinkler system. 30 sprinkler heads... |
| 2026-08-07 | BD-2026-304082 | 15 ROLLING HILLS AVE | Roofing | TEAR OFF EXISTING ASHALT SHINGLES AND REPLACE WITH NEW CLASS A ASPHALT SHINGLES @ ... |
| 2026-08-07 | MEP-2026-304077 | 2 WHITECLIFF CT | HVAC | REPLACE GAS FURNACE IN SAME LOCATION (GARAGE). |
| 2026-08-07 | BD-2026-304062 | 49 36TH AVE | Roofing | TPO Overlay of 106sq- Clean and prep roof to mechanically fastened Johns Manville ... |
| 2026-08-07 | BD-2026-304057 | 1309 BIRCH AVE | Roofing | Re-Roof. Remove existing composition roof. Install partial sheathing. Install comp... |
| 2026-08-07 | MEP-2026-304085 | 614 OREGON AVE | Electrical | Install new building clean-out only in driveway within two feet of house foundatio... |
| 2026-08-07 | MEP-2026-304084 | 1314 ASHWOOD CT | Electrical | Installation of a 50A car charging outlet. |
| 2026-08-07 | MEP-2026-304079 | 723 COSTA RICA AVE | Electrical | Installation of a Temporary Power Pole and 100A meter at front right portion of lot. |
| 2026-08-07 | FR-2026-304067 | 2712 TIBURON ST | Fire alarm | Installation of a new NFPA 13D automatic fire sprinkler system. 30 sprinkler heads... |
Query San Mateo, California permits with a single HTTP request. Returns JSON with address, category, status, dates, and full description.
# Search San Mateo permits issued in the last 30 days curl -H "X-API-Key: YOUR_KEY" \ "https://api.permit-stack.com/v1/permits/search?city=San%20Mateo&state=CA&issued_after=2026-09-23"
The official record sets behind this page, with the date each one's data runs through.
| Record set | Source | Permits | Data through | Note |
|---|---|---|---|---|
| Permits | EnerGov permit portal | 152,617 | 2026-08-07 | Upstream access blocked since 2026-08-18 (66d) — the host refuses our requests (HTTP 403); we cannot confirm whether the source itself has stopped. |
Related coverage in California and nationwide.
We ingest San Mateo's official permit records directly from the jurisdiction's own permit portal and normalize them into a consistent JSON schema across our U.S. jurisdictions.
The newest permit we hold for San Mateo, California is dated August 7, 2026. We re-read this source on a nightly schedule and publish the date the data runs through rather than the date we last polled. Upstream access blocked since 2026-08-18 (66d) — the host refuses our requests (HTTP 403); we cannot confirm whether the source itself has stopped.
Yes — search San Mateo permits free in the browser, no signup needed. The API needs a free key (100 requests per day, no credit card).
Yes. CSV export is available on every plan, including free, with the row cap rising by tier. Webhooks (Developer plan and up) push new permits after each nightly ingest.
The median time from permit filing to issuance in San Mateo, California is 4 days, based on permits issued in the last 12 months. Smaller permit types (residential alteration, electrical) typically issue faster; new construction and large additions usually take longer.
Free tier covers 100 requests per day. No credit card required.
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