Access 7,196 building permits issued in Ontario, Oregon through a single REST API, normalized into a consistent schema. Data through October 21, 2026.
Most common permit types issued in the last year.
Drill into the most common permit categories in Ontario.
Permit activity for individual ZIP codes in Ontario, newest first by volume.
Every permit we hold for one Ontario 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 Ontario, Oregon. Full dataset available via REST API.
| Issued | Permit # | Address | Category | Description |
|---|---|---|---|---|
| No recent permits. | ||||
Query Ontario, Oregon permits with a single HTTP request. Returns JSON with address, category, status, dates, and full description.
# Search Ontario permits issued in the last 30 days curl -H "X-API-Key: YOUR_KEY" \ "https://api.permit-stack.com/v1/permits/search?city=Ontario&state=OR&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 | Accela Citizen Access portal | 7,196 | 2026-10-21 |
Related coverage in Oregon and nationwide.
We ingest Ontario'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 Ontario, Oregon is dated October 21, 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. Some cities publish permits days after they are filed.
Yes — search Ontario 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.
Free tier covers 100 requests per day. No credit card required.
Get Free API Key