Open data · Seattle Open Data

Building permits in Seattle, WA

Seattle issued 6,514 building permits in the last 12 months (+2% year on year), with a median declared value of $120,000 and $8.5B of declared work in total. The busiest month in the last two years was Mar 2026 with 651 permits. Latest permit in the data: Oct 9, 2026.

Permits, 12 months
6,514
Median declared value
$120,000
Total declared value
$8.5B
All-time in register
140,698

Permits issued per month in Seattle

Oct 2024Oct 2026 (to date)
Show as table
MonthPermits issued
Oct 2026157
Sep 2026507
Aug 2026561
Jul 2026566
Jun 2026589
May 2026524
Apr 2026637
Mar 2026651
Feb 2026409
Jan 2026476
Dec 2025527
Nov 2025377
Oct 2025533
Sep 2025520
Aug 2025532
Jul 2025546
Jun 2025617
May 2025625
Apr 2025608
Mar 2025575
Feb 2025414
Jan 2025460
Dec 2024447
Nov 2024384
Oct 2024504

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Permits by type (last 12 months)

Permit typePermitsShareMedian declared value
Addition/Alteration3,90760.0%$62,484
New1,37621.1%$392,754
Other6159.4%$25,600
Demolition4106.3%$800,000
Tenant Improvment1382.1%$249,000
Temporary370.6%$45,000
Change of Use Only - No Construction240.4%$40,500
Deconstruction60.1%$800,000
Relocation10.0%$1.0M

Busiest ZIP codes

ZIP codePermits, 12 monthsMedian valueTop type
98115542$155,925Addition/Alteration
98103484$187,678Addition/Alteration
98117410$138,178Addition/Alteration
98125352$250,046Addition/Alteration
98118326$132,638Addition/Alteration
98105320$200,000Addition/Alteration
98199251$100,000Addition/Alteration
98122247$75,000Addition/Alteration
98109247$83,751Addition/Alteration
98116245$109,212Addition/Alteration
98133220$188,861Addition/Alteration
98119218$200,000Addition/Alteration
98101217$162,934Addition/Alteration
98112215$70,000Addition/Alteration
98126207$85,000Addition/Alteration

Largest permits of the last 90 days

Ranked by declared value. Owner, applicant and contractor names are not shown.

AddressWorkDeclared valueIssued
3919 Okanogan Ln Ne98195OtherGrading activities for future institutional building [CHEMISTRY SCIENCES] on institutional campus [UNIVERSITY OF WASHINGTON] per plan.$127.6MSep 15, 2026
2929 27th Ave S98144NewConstruct new mixed-use building occupy per plan. Mechanical Included.$69.9MOct 8, 2026
2601 Elliott Ave98121Addition/AlterationPHASED PERMIT: Construct substantial alterations to a commercial office building for a mixed use - multi-family building occupy per plan. Mechanical included with Phase 2.$67.7MJul 28, 2026
123 Boylston Ave E98102DemolitionDemolish north commercial office building and associated south parking structure per plan.$57.0MOct 9, 2026
452 N 36th St98103NewPhased project: Construct mixed use apartment building occupy per plan. Mechanical included.$30.7MJul 15, 2026
230 Ne Northgate Way98125DemolitionDemolish existing multifamily building (Building 32) per plan. Drainage review completed under permit 7113310-DM.$24.1MAug 17, 2026
128 Ne 112th St98125DemolitionDemolish existing multifamily building and carport (Building 3) per plan. Drainage review completed under permit 7113310-DM.$24.1MAug 17, 2026
150 Ne 112th St98125OtherDemolish existing multifamily building (Building 4) per plan. Review and processing under parent permit 7113310-DM.$24.1MAug 17, 2026
127 Ne 112th St98125DemolitionDemolish existing multifamily building (Building 12) per plan. Drainage review completed under permit 7113310-DM.$24.1MAug 17, 2026
11040 2nd Ave Ne98125DemolitionDemolish existing multifamily building and carport (Building 16) per plan. Review and processing under parent permit 7113310-DM.$24.1MAug 17, 2026
11020 1st Ave Ne98125DemolitionDemolish existing multifamily building (Building 17) per plan. Review and processing under parent permit 7113310-DM.$24.1MAug 17, 2026
11023 2nd Ave Ne98125DemolitionDemolish existing multifamily building (Building 18) per plan. Drainage review completed under permit 7113310-DM.$24.1MAug 17, 2026
11022 2nd Ave Ne98125DemolitionDemolish existing multifamily building (Building 19) per plan. Review and processing under parent permit 7113310-DM.$24.1MAug 17, 2026
11015 2nd Ave Ne98125DemolitionDemolish existing multifamily building (Building 20) per plan. Drainage review completed under permit 7113310-DM.$24.1MAug 17, 2026
11016 2nd Ave Ne98125DemolitionDemolish existing multifamily building (Building 21) per plan. Review and processing under parent permit 7113310-DM.$24.1MAug 17, 2026

All ZIP codes in Seattle

Frequently asked questions

How many building permits does Seattle issue?
Seattle issued 6,514 permits in the 12 months since Oct 1, 2025, according to the Building Permits (Seattle Department of Construction and Inspections) dataset. That is up 2% on the previous 12 months. The most common type was Addition/Alteration (3,907 permits).
What is the typical value of a building permit in Seattle?
The median declared value across permits with a stated value was $120,000. Values vary hugely by type. Declared values are the applicant’s estimate at filing, not the final contract price.
Where can I look up a specific permit in Seattle?
Search the city’s official register on Seattle Open Data (linked below) by address or permit number. The pages here summarise the register; they do not replace it.

Other cities

Source: Building Permits (Seattle Department of Construction and Inspections), Seattle Open Data. Licence: Public Domain. Statistics computed by Planium from the published register (12-month window from Oct 1, 2025; declared values between $1 and $2B). Values are applicants’ estimates and are not verified. Personal names are omitted. Generated Oct 12, 2026.