Access 190,667 building permits issued in Seattle, Washington through a single REST API. Refreshed daily from the official Seattle 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 Seattle.
Most active contractors by permit volume in Seattle.
The 10 most recent permits issued in Seattle, Washington. Full dataset available via REST API.
| Issued | Permit # | Address | Category | Description |
|---|---|---|---|---|
| 2026-08-05 | 7125276-CN | 4545 FAUNTLEROY WAY SW | Mechanical | Construct interior alterations to existing retail space (Trader Joe's) per pl... |
| 2026-08-05 | 7100081-CN | 3199 S WEBSTER ST | Other | Construct middle one-family dwelling Unit 2 per plan. (Establish use for (2) deta... |
| 2026-08-05 | 7118034-CN | 1409 N 38TH ST | Other | Construct east one-family dwelling per plan. ([Land Use Statement] Construct one ... |
| 2026-08-05 | 7077918-DM | 7750 21ST AVE NW | Demolition | Demolish existing religious facility building per plan. |
| 2026-08-05 | 7135203-CN | 535 TERRY AVE N | Other | Construction of security vestibules in parking garage of a mixed use building per... |
| 2026-08-05 | 7101214-CN | 3670 INTERLAKE AVE N | Other | Construct west two-family dwelling per plan. [Establish use as 3 detached dwellin... |
| 2026-08-05 | 7142309-DM | 710 26TH AVE | Demolition | Demolition east small residential building per plans |
| 2026-08-05 | 7140537-DM | 712 26TH AVE | Demolition | Demolish existing northwest apartment building per plan. |
| 2026-08-05 | 7122903-CN | 8424 46TH AVE S | Other | Construct east DADU#2 per plan. Establish use as housing for one detached dwelli... |
| 2026-08-05 | 7112377-CN | 8422 46TH AVE S | Other | Allow housing for two detached dwelling units. Construct (2) new one-family dwell... |
Query Seattle, Washington permits with a single HTTP request. Returns JSON with address, category, status, dates, and full description.
# Search all Seattle permits issued this month curl -H "X-API-Key: YOUR_KEY" \ "https://api.permit-stack.com/v1/permits/search?city=Seattle&state=WA&issued_after=2026-04-01"
Related coverage in Washington and nationwide.
We ingest data directly from the official Seattle 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 Seattle, Washington was issued on August 5, 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 Seattle 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 Seattle, Washington is 50 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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