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Building permits in 98058, unincorporated King County

Data through September 2026 · updated 23 Oct 2026

673 building permits were issued in ZIP code 98058 by King County Department of Local Services, Permitting, October 2024 through September 2026: 9% of the 7,283 in unincorporated King County, the 2nd busiest ZIP code. HVAC permits lead with 513. 299 permits in the last 12 months (Oct 2025–Sep 2026), 20% fewer than the 374 in the 12 months before. Permits from a city that runs its own permit office are not counted.

673permits in 98058
299last 12 months
93%for homes
Sep 2026records through

Permits in 98058 by kind of work

Share here is the part of the 673 permits in 98058; countywide is the same for all of unincorporated King County.

Kind of workPermitsShare hereCountywide
HVAC51376%69%
Remodels & repairs487%7%
Garages, sheds & shade structures244%4%
New homes162%5%
Additions152%4%
Demolition81%2%
ADUs & casitas2under 1%under 1%
Other477%8%

Download this table (CSV)

Permits in 98058 by year

Permits issued in each calendar year of the window.

YearMonthsPermitsPer year
2024 (from October)382328
202512375375
2026 (through September)9216288

Download this table (CSV)

How these numbers are made

Source: King County Local Services, monthly Issued Permits Reports (Excel), read 23 Oct 2026. We count permits issued October 2024 through September 2026; denied and withdrawn permits are left out. The county's monthly report shows each permit's status only as of the month it was issued and never updates it, so no finished share is shown.

Building permits King County Local Services issues for unincorporated land only: homes, additions, remodels, heating and mechanical, demolition and commercial buildings. Seattle, Bellevue, Redmond, Kent, Renton and the other cities issue their own permits; Seattle and Bellevue have their own pages on this site. Fire, grading and right-of-way permits are not counted.

  • King County publishes its issued permits as a monthly spreadsheet; these pages stack the reports from October 2024 on.
  • Each permit is listed once, in the month it was issued, with its status as of that report, so the file can't say which permits were later finished, and there is no final date.
  • The county's file names no contractor (only the applicant, often the homeowner), so there are no contractor lists, rankings or firm pages for King County.
  • Electrical permits in unincorporated King County come from Washington Labor & Industries and plumbing permits from Public Health, so there are no electrical or plumbing counts here.
  • Residential mechanical permits (heat pumps, furnaces, ducts) are over half of the county's permits and carry no declared value; values are the job value on the other permits.
  • Additions, accessory buildings and remodels are split out of the county's addition/improvement permits by their descriptions.

Counts are permits, not jobs: one job can need several permits. Nobody paid to be on this page and nobody can. Sources and definitions →

Cite this page

Free to reuse with attribution (CC BY 4.0). Please credit Contractor Records and link to this page. Suggested citation:

Contractor Records, "Building permits in 98058, unincorporated King County", https://contractorrecords.com/king-county/zip/98058, data through September 2026, from King County Department of Local Services, Permitting building-permit records.

Link to a table: By kind of work · By year.

Download the tables (CSV): Permits in 98058 by kind of work · Permits in 98058 by year.

Common questions

  • How many building permits were issued in 98058?673 permits issued by the county in ZIP code 98058, October 2024 through September 2026: 513 HVAC, 48 remodels & repairs, 24 garages, sheds & shade structures. 299 were in the last 12 months.
  • What is built most in 98058?HVAC: 513 of the 673 permits (76%), against 69% countywide.
  • Who did the work in 98058?The county's file doesn't name contractors, so we can't say. Ask a contractor for the permit numbers of past jobs and check them with the county.