Access 189,637 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.
The 10 most recent permits issued in Seattle, Washington. Full dataset available via REST API.
| Issued | Permit # | Address | Category | Description |
|---|---|---|---|---|
| 2026-04-27 | 7123121-CN | 610 N 48TH ST | Other | Construct new two-family dwelling (North 2A&2B) per plan. (Establish use as ... |
| 2026-04-27 | 7125697-CN | 2520 11TH AVE W | Other | Allow housing for one new stacked dwelling unit within an existing structure per ... |
| 2026-04-27 | 7112368-CN | 612 N 48TH ST | Other | Construct new two-family dwelling (South 1A&1B) per plan. (Establish use as ... |
| 2026-04-27 | 7121531-DM | 7332 58TH AVE NE | Other | Demolish existing one-family dwelling per plan. |
| 2026-04-27 | 7112369-DM | 610 N 48TH ST | Other | Demolish one-family dwelling per plan. Includes removal of (1) detached accessory... |
| 2026-04-27 | 7101045-CN | 5862 MCKINLEY PL N | Addition | Construct addition and alterations to existing one family dwelling per plan. |
| 2026-04-27 | 7139867-CN | 2327 NE 130TH ST | Other | Window replacement to existing one-family dwelling subject-to-field inspection (S... |
| 2026-04-27 | 7139932-CN | 400 9TH AVE N | Other | Construct Tenant Improvement Project at 400 9th Ave N. Installing full height demo... |
| 2026-04-27 | 7139876-CN | 5804 8TH AVE NE | Other | Window replacements to existing one-family dwelling subject-to-field inspection (... |
| 2026-04-27 | 7123865-CN | 359 27TH AVE | Other | Construct interior alterations to existing single family residence per STFI |
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 April 27, 2026. Permit backlogs on the city side may mean some permits take a few days to appear.
Yes — our free tier includes 1,000 requests per day, enough to search and filter Seattle permits interactively. Sign up for a free API key to get started.
Yes. Paid plans support CSV export and periodic webhooks for changed permits.
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 1,000 requests per day. No credit card required.
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