Access 65,279 building permits issued in Hayward, California through a single REST API. Refreshed daily from the official Hayward open data portal and normalized into a consistent schema.
Most common permit types issued in the last year.
Drill into the most common permit categories in Hayward.
Most active contractors by permit volume in Hayward.
The 10 most recent permits issued in Hayward, California. Full dataset available via REST API.
| Issued | Permit # | Address | Category | Description |
|---|---|---|---|---|
| 2026-08-06 | BL-WH-2026-00215 | 21692 Westfield | Plumbing | apply permit for new water heater. |
| 2026-08-06 | BL-MECHR-2026-00170 | 25060 Dania | HVAC | Replacement of furnace and AC; same location. |
| 2026-08-06 | BL-ROOF-2026-00280 | 354 Berry | Roofing | Remove existing roofs (2), apply 30lb synthetic underlayment, install 22sq Class A... |
| 2026-08-06 | BL-ELEC-2026-00047 | 29583 Mission | Renovation | Replace existing conduit and feeders coming from the existing 400A panel feeding t... |
| 2026-08-06 | BL-ELER-2026-00385 | 26153 Hickory | Electrical | Need to upgrade main panel to a 200 Amp |
| 2026-08-06 | BL-ROOF-2026-00282 | 24972 Lucien | Roofing | A) NEW FRAMED PITCHED ROOF OVER EXISTING FLAT ROOF. |
| 2026-08-06 | BL-PVSAPP-2026-00228 | 22844 Evanswood | Solar | RESIDENTIAL ESS & PV SOLAR, FLUSH ROOF MOUNT, GRID TIED, BATTERY BACKUP WHOLE ... |
| 2026-08-06 | BL-PLUMR-2026-00115 | 25406 Charles | Plumbing | Pipe burst the first 40ft. Pot hole has already been done at house we will need to... |
| 2026-08-06 | BL-ELER-2026-00386 | 495 Laurel | Electrical | Replace existing single 200amps meter with dual meters to serve the new adu at 493... |
| 2026-08-06 | FP-SPK-2026-00057 | 21015 Skywest | Fire alarm | Tenant impovement to existing fire sprinkler system to adjust to new office layout. |
Query Hayward, California permits with a single HTTP request. Returns JSON with address, category, status, dates, and full description.
# Search all Hayward permits issued this month curl -H "X-API-Key: YOUR_KEY" \ "https://api.permit-stack.com/v1/permits/search?city=Hayward&state=CA&issued_after=2026-04-01"
Related coverage in California and nationwide.
We ingest data directly from the official Hayward open data portal (the official city portal) 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 Hayward, California was issued on August 6, 2026. Permit backlogs on the city side may mean some permits take a few days to appear.
Yes — our free tier includes 100 requests per day, enough to search and filter Hayward permits interactively. Sign up for a free API key to get started.
Yes. CSV export is available on every plan, including free, with the row cap rising by tier. Real-time webhooks for changed permits are on the Developer plan and above.
The median time from permit filing to issuance in Hayward, 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.
Get Free API Key