Access 7,119 building permits issued in Ontario, Oregon through a single REST API. Refreshed daily from the official Ontario 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 Ontario.
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 all Ontario permits issued this month curl -H "X-API-Key: YOUR_KEY" \ "https://api.permit-stack.com/v1/permits/search?city=Ontario&state=OR&issued_after=2026-04-01"
Related coverage in Oregon and nationwide.
We ingest data directly from the official Ontario 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 Ontario, Oregon 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 Ontario 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.
Free tier covers 100 requests per day. No credit card required.
Get Free API Key