Monthly archive · King County, Washington
Seattle Building Permits — September 2026
Every building permit issued by the City of Seattle in September 2026: counts, permits by trade, and the month's most recent permits.
Source: City of Seattle open data — building permits. Source last updated: October 18, 2026 · Our last pull: October 18, 2026 · Figures are as reported by the City of Seattle.
Coverage: this report covers building permits issued by the City of Seattle, the largest jurisdiction in King County. Other King County cities publish their permits separately and are not in this feed, so totals here are Seattle totals — labeled as such, never blended. County-wide coverage is not implied.
PermitsByCounty data, King County (Seattle), September 2026 · Source: City of Seattle
Questions, answered from the data
How many building permits were issued in Seattle in September 2026?
507 building permits were issued in Seattle in September 2026. The busiest trade was General & Other with 309 permits, as reported by the City of Seattle.
Permits by trade — September 2026
| Trade | Permits issued |
|---|---|
| General & Other | 309 |
| New Construction | 106 |
| Demolition | 44 |
| Roofing | 44 |
| Plumbing | 3 |
| Solar | 1 |
Most recent permits issued in September 2026
| Permit | Trade | Issued |
|---|---|---|
| 125 Warren Ave N #7165216-RR Roof overlay | Roofing | 2026-09-30 |
| 129 Warren Ave N #7165214-RR Roof overlay | Roofing | 2026-09-30 |
| 123 John St #7165210-RR Overlay on roof | Roofing | 2026-09-30 |
| 117 John St #7165204-RR Overlay of the roof | Roofing | 2026-09-30 |
| 839 Ne 92Nd St #7165147-CN Alterations to dwelling unit Subject To Field Inspection(STFI) | General & Other | 2026-09-30 |
| 11703 2nd AVE NW #7164993-CN Alterations to existing dwelling unit Subject To Field Inspection (STFI) | General & Other | 2026-09-30 |
| 2723 E Union St #7164652-CN Repair and replace in kind damage from vehicle impact to mixed-use building storefront at Level 1 East faca… | General & Other | 2026-09-30 |
| 6824 36Th Ave Ne #7163042-CN Construct interior alterations to bathroom of one family dwelling subject to field inspection STFI. | General & Other | 2026-09-30 |
| 3220 Nw 69Th St #7160220-CN Interior alterations to existing single family residence subject to field inspection | General & Other | 2026-09-30 |
| 800 Union St #7160064-BK Construct blanket permit tenant improvements to the Consulate General of Japan in Seattle on the tenth floo… | General & Other | 2026-09-30 |
Full report: King County (Seattle) county hub.