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September 2026 Building Permits

Official permit data from Seattle— updated Mon, Wed & Fri from the county permitting office.

Seattle, WA issued 2,726 building permits in September 2026, down 33% from the prior month. The most active zip code was 98115 with 250 permits. Electrical was the top permit type, making up 51% of all permits issued.

Permits issued
2,726
vs. prior month
-33%
4,076 last month
Most active zip
98115
250 permits
Top permit type
Electrical
51% of total

Permit activity by zip code

Top 10 zip codes by permit volume — September 2026

98115
250
98103
189
98117
184
98118
145
98105
131
98199
117
98125
115
98101
113
98109
98
98119
98

Permits by type

September 2026 · Seattle, WA

Electrical
1390 (51%)
Trade — Single-Family/Duplex Furnace
399 (15%)
Trade — Refrigeration
320 (12%)
Building — Addition/Alteration
226 (8%)
Building — New
84 (3%)
Trade — Mechanical
69 (3%)
Trade — Conveyance
53 (2%)
Trade — Fire Sprinkler and Suppression
53 (2%)
Roof
33 (1%)
Trade — Boiler/Pressure Vessel
26 (1%)
Trade — Sign, Awning and Canopy
25 (1%)
Demolition — Demolition
20 (1%)
Demolition
11 (0%)
Building — Tenant Improvment
8 (0%)
Grading
4 (0%)
Building — Temporary
3 (0%)
Building — Change of Use Only - No Construction
1 (0%)
Demolition — Relocation
1 (0%)

Other months — Seattle

August 2026July 2026June 2026
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