King County Building Permits & Project Research

6,907 indexed permits · 1,724 contractor names in the last 90 days · King County, Washington.

Check for a current city sample Start 14-Day Trial Manage subscription Browse permits ↓

PermitGrab Pro is a $149/mo subscription. 14-day Pro trial — choose your market first, then card required at checkout · cancel anytime before day 14.

Public-record project research, not a shared-lead marketplace. Use the permit, source date, and available fields to research the builder, project, or adjacent work before outreach. Cancel anytime in one click — no retention call.

King County building permits — key stats
Active contractors 1,724
Newest permit 2026-11-05

PermitGrab tracks 6,907 building permits in King County, WA as of 2026-11-05, including 1,724 active contractors identified from filings in the last 90 days.

✓ Recent record dates

Record recency is based on available filing or issue dates; it does not verify publication time or collection delay.

Newest permit date:

PermitGrab Pro is a $149/mo subscription for current municipal permit, property, and code-violation records. In this market, that includes contractor records from the official municipal feed. 14-day Pro trial below — choose your market first, then card required at checkout · cancel anytime before day 14.

Filter King County permits by trade: solar · roofing · HVAC · electrical · fire protection · new construction.

Free weekly permit summary for King County

One email a week with the newest King County building permits — contractors, addresses, and project values. Free summary only — no credit card. Pro research tools require a separate 14-day trial with a card. Available fields vary by source. Unsubscribe anytime.

6,907
Indexed Permits
1,724
Contractor names (90 days)
2026-11-05
Last Updated
Source date: 2026-11-05
📊 View King County source-dated permit records →

🔔 Get King County Permit Alerts

New permits, and contractor activity sent when new public records are available.

📥 Export CSV 📊 Report

Published permit & code records

Permit data through 2026-11-05

6,907 permits sorted by date

Project value is blank on every record displayed here, so the Value column is omitted.

⇄ Swipe or scroll to see address & contractor

Date Type Address Details Contractor / Status Save
2026-08-14 HVAC
Source type: Building Mechanical Residential
 13572 280TH AVE NE, DUVALL WA 98019 13572 280TH AVE NE, DUVALL, WA 98019 Daniel Hammer
2026-08-14 General Construction
Source type: Complex Food Handling - Multiple (5) Event Permit Package
 — Complex - Multiple Morales, Jazlyn
2026-08-14 Interior Renovation
Source type: Building/Residential Building/Dwelling-Single/NA
 19219 SE AUBURN BLACK DIAMOND RD PREVIOUS EXPIRED PERMIT WAS NOT COMPLETED. COMPLETE THE SINGLE FAMILY RESIDENCE … shingle replacement Re-roof —
2026-08-14 Interior Renovation
Source type: Building/Residential Building/Addition-Improvement
 13706 SE 170TH ST CONSTRUCT AN ADDITION TO EXISTING SFR (BEDROOM AND WIC) AND REMODEL BATHROOM AND… Mike Webb
2026-08-14 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 7302 EARL AVE NW Seattle WA 98117
Owner: owe··· 🔒
Plumbing Residential Single Family MATT'S PLUMBING & MECH LLC
2026-08-14 General Construction
Source type: Moderate Food Handling - Single Event Permit
 — Moderate - Single Fetch The Fizz
2026-08-14 General Construction
Source type: Complex - Event 03
 — Complex - Event 03 Selim, Ragy
2026-08-14 General Construction
Source type: Moderate Food Handling - Single Event Permit
 — Moderate - Single moyeon yang
2026-08-14 General Construction
Source type: Complex Food Handling - Single Event Permit
 — Complex - Single bbq olive chicken
2026-08-14 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 14438 89TH PL NE Kirkland WA 98034
Owner: Ste··· 🔒
Plumbing Residential Single Family Elysian Plumbing LLC
2026-08-14 General Construction
Source type: Complex - Event 09
 — Complex - Event 09 Scott Bowen
2026-08-14 New Construction
Source type: OSS Installation Permit - New or Replacement Pressurized System for Single Family
 3321 WEST VALLEY HWY N AUBURN WA 98001 Pressurized System (New)-Single Family residential Auburn Valley Humane Society
2026-08-14 Plumbing
Source type: 04b. Plumbing (by Contractor) - Small Commercial - without Plan Review*
 4706 CALIFORNIA AVE SW Seattle WA 98116
Owner: Kes··· 🔒
Plumbing Small Commercial Tumya Plumbing Contactor LLC
2026-08-14 New Construction
Source type: OSS Installation Permit - New or Replacement Pressurized System for Single Family
 3814 S 306TH PL AUBURN WA 98001
Owner: CAR··· 🔒
Pressurized System (New)-Single Family residential STREEPY SEPTIC DESIGN LLC
2026-08-14 New Construction
Source type: OSS Installation Permit - New or Replacement Pressurized System for Single Family
 2122 SW 322ND ST Federal Way WA 98023 Pressurized System (New)-Single Family residential STREEPY SEPTIC DESIGN LLC
2026-08-14 New Construction
Source type: OSS Installation Permit - New or Replacement Pressurized System for Single Family
 43211 SE 174TH ST NORTH BEND WA 98045
Owner: DEN··· 🔒
Pressurized System (New)-Single Family residential TOOLEY DESIGN
2026-08-14 New Construction
Source type: OSS Installation Permit - New or Replacement Pressurized System for Single Family
 7716 SW 257TH ST VASHON WA 98070
Owner: Fra··· 🔒
Pressurized System (New)-Single Family residential J COOPER DESIGN
2026-08-14 General Construction
Source type: Moderate - Event 16+
 — Moderate - Event 16+ KOHITECTURE LLC
2026-08-14 General Construction
Source type: Moderate - Event 16+
 — Moderate - Event 16+ Sweet Fortune
2026-08-14 General Construction
Source type: Moderate - Event 10
 — Moderate - Event 10 DING TEA 36 Streets
2026-08-14 General Construction
Source type: Moderate - Event 09
 — Moderate - Event 09 DING TEA 36 Streets
2026-08-14 General Construction
Source type: Complex - Event 02
 — Complex - Event 02 Selim, Ragy
2026-08-14 General Construction
Source type: Complex - Event 05
 — Complex - Event 05 Selim, Ragy
2026-08-14 General Construction
Source type: Complex - Event 08
 — Complex - Event 08 Peace Loaf
2026-08-14 General Construction
Source type: Complex - Event 12
 — Complex - Event 12 Langostino Sushi Burrito/Tornado Potato? Gyopo Chicken
2026-08-14 General Construction
Source type: Complex - Event 16+
 — Complex - Event 16+ Vazquez Mora, Faviola
2026-08-14 General Construction
Source type: Moderate - Event 02
 — Moderate - Event 02 Scotsman Espresso
2026-08-14 HVAC
Source type: Building/Mechanical/Commercial/NA
 11427 3RD AVE S Modify the existing HVAC air distribution system in Portable Buildings #209 and … New installation HVAC installation Diego Camacho Valadez
2026-08-14 Fire Protection
Source type: Fire/Fire Permit Systems/Sprinkler/Residential
 24400 115TH AVE SW Add a new wet sprinkler system to the new single-family residence. residential sprinkler New construction Design Manager
2026-08-14 New Construction
Source type: Residential Building - ADU
 27110 94TH AVE SW, VASHON WA 98070 BIG ROCK HORSE RANCH LLC - DETACHED ACCESSORY DWELLING UNIT residential —
2026-08-14 HVAC
Source type: Building Mechanical Residential
 21227 NE 154TH ST, WOODINVILLE WA 98077 21227 NE 154TH ST, WOODINVILLE, WA 98077 Daniel Hammer
2026-08-14 General Construction
Source type: Blanket Event Permit
 — Temporary Event Blanket Permit Tolo Events LLC
2026-08-14 Electrical
Source type: Building/Electrical Comm Device/Antenna/NA
 — AT&T antenna and radio swap at existing colocation on BPA transmission tower, pe… replacement —
2026-08-14 Roofing
Source type: Building/Addition-Improvement/Tenant/NA
 400 S 96TH ST REMOVE A PORTION OF EXISTING BUILDING TO INCLUDE CONCRETE TILT-UP WALLS, ROOFING… New installation New roof —
2026-08-14 General Construction
Source type: Complex Food Handling - Single Event Permit
 — Complex - Single Carretas Pupuseria y taqueria
2026-08-14 General Construction
Source type: Moderate Food Handling - Single Event Permit
 — Moderate - Single Jené Miller
2026-08-14 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 2809 NW 56TH ST Seattle WA 98107
Owner: CAL··· 🔒
Plumbing Residential Single Family Washington Energy Services
2026-08-14 Plumbing
Source type: 41. Backflow Assembly Permit - By Contractor
 505 1ST AVE S Seattle WA 98104
Owner: ENV··· 🔒
Backflow Assembly ENVIROMECH
2026-08-14 Plumbing
Source type: 41. Backflow Assembly Permit - By Contractor
 11302 MERIDIAN AVE N Seattle WA 98133
Owner: CIT··· 🔒
Backflow Assembly SHINN MECHANICAL INC
2026-08-14 Signage
Source type: SiteDevCA/Critical Areas Designation/Formal Design
 22812 PETER GRUBB RD SE Critical Areas Designation for proposed building of house addition and a detache… —
2026-08-14 General Construction
Source type: Moderate - Event 02
 — Moderate - Event 02 Vonn Gourmet LLC
2026-08-14 General Construction
Source type: Complex - Event 10
 — Complex - Event 10 BYBLOS DELI COMMISSARY
2026-08-14 New Construction
Source type: OSS Installation Permit - New or Replacement Pressurized System for Single Family
 10320 SW COVE RD VASHON WA 98070
Owner: LYL··· 🔒
Pressurized System (New)-Single Family residential J COOPER DESIGN
2026-08-14 General Construction
Source type: Moderate - Event 03
 — Moderate - Event 03 Seattle Kimchi, LLC
2026-08-14 General Construction
Source type: Moderate Food Handling - Unlimited Event Permit Package
 — Moderate - Unlimited Cape Drizzle
2026-08-14 General Construction
Source type: Moderate - Event 01
 — Moderate - Event 01 EL PAISANO TAMALES
2026-08-14 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 12548 DENSMORE AVE N Seattle WA 98133
Owner: PIE··· 🔒
Plumbing Residential Single Family TIGHTEN PLUMBING LLC
2026-08-14 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 1225 NE 96TH ST Seattle WA 98115
Owner: Kar··· 🔒
Plumbing Residential Single Family FIL-AM PLUMBING
2026-08-14 New Construction
Source type: OSS Installation Permit - New or Replacement Pressurized System for Single Family
 29325 149TH WAY SE KENT WA 98042
Owner: Her··· 🔒
Pressurized System (New)-Single Family residential J&A Contracting LLC
2026-08-14 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 17560 174TH AVE NE WA 98072
Owner: Ric··· 🔒
Plumbing Residential Single Family JACUZZI BATH REMODEL OF SEA
Page 105 of 139 ← Prev 1 2 … 104 105 106 138 139 Next →
Permit Types in King County
02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
1,480 34.7%
Building Mechanical Residential
723 17.0%
22b. Natural Gas (by Contractor) – Residential - without Plan Review*
465 10.9%
Building/Mechanical/Residential/NA
342 8.0%
41. Backflow Assembly Permit - By Contractor
313 7.3%
04b. Plumbing (by Contractor) - Small Commercial - without Plan Review*
226 5.3%
Complex - Event 16+
198 4.6%
OSS Installation Permit - New or Replacement Pressurized System for Single Family
185 4.3%
Residential Building - Addition-Improvement
172 4.0%
03b. Plumbing (by Contractor) - Multi-Family - without Plan Review*
156 3.7%
Construction Activity in King County

New building permits in King County, Washington show where construction activity is being recorded. Contractors can filter the available public records by trade, date, address, and project value to research projects and plan outreach using the fields the source publishes.

About King County Building Permits

King County, Washington processes building permits covering residential construction, commercial buildouts, renovations, and specialty trade work. PermitGrab tracks 6,907+ King County building permits — newest permit date: 2026-11-05 from this listing's source.

Building permits in King County can document new construction, renovations, and specialty work. The fields in a public record vary by filing, but may include a project address, scope, estimated cost, or contractor name. Use the displayed source information to evaluate whether a record is useful for your market research.

How Contractors Use King County Permit Data

HVAC contractors, electricians, plumbers, and roofers can use King County building-permit records to research visible construction activity. A permit may signal a project that is relevant to a particular trade, but the source record does not establish that its owner is seeking a bid.

Use the published date, project details, and any named business contact to research a project before outreach. Public records are not exclusive, and outreach results depend on the market, project, and your own process.

Eligible subscribers can receive trade-filtered alerts when new records are collected. Alert timing and field coverage follow the underlying source rather than a universal schedule.

PermitGrab methodology · Page data current as of · Source: 3 public source feeds.

Who appears in King County permit records?

PermitGrab indexes 6,907 building permits in King County. New records appear as they are available from the source.

How fresh is King County permit data?

The most recent permit indexed for King County is dated 2026-11-05. Newest permit date: 2026-11-05. Permit records carry filing date, address, project value, and permit type, plus contractor name where the source publishes it. Use a recent published record for project research; it does not show bid availability or a request for service.

What construction appears in King County permit records?

King County permit activity covers 6,907 indexed permits. The records can cover new construction, residential renovations, mechanical/electrical/plumbing upgrades, roof replacements, demolitions, or tenant improvements. Their usefulness for a contractor or supplier depends on the published project details, timing, and service area.

1 workflow for King County research

Start with the published project record.

🕵️

The project-team lookup

Search a business name to review its recorded permit activity in King County and the project details the public source publishes. Use the scope, timing, and address to research complementary work; a record is not a request for bids.

Research King County project activity — Pro $149/mo

How to look up King County building permits

Search recent King County, WA building permits by address, contractor, and permit type in the table above — pulled from the King County building department's public permit records. New filings appear here as they are published. Filter by trade or search an address to look up a specific permit. For this week's filing volume and the most active contractors, see the King County Permit Pulse.

Nearby Washington Cities — explore building permits in other Washington cities
Spokane building permits
13,467 permits
→
Seattle building permits
12,640 permits
→
Bellingham building permits
9,233 permits
→
Tacoma building permits
8,946 permits
→
Pierce County building permits
8,635 permits
→
Everett building permits
7,905 permits
→
Kirkland building permits
5,853 permits
→
Bellevue building permits
5,324 permits
→
Sammamish building permits
3,265 permits
→
Federal Way building permits
3,132 permits
→
View all Washington permits →

Research King County project activity

Email alerts when new public records are available for newly published permits and recorded project-team activity. Contact details are shown only where the public source publishes them. 14-day Pro trial for alerts — card required; Pro $149/mo unlocks full available records.

See Pricing Set Up Free Alerts

Frequently Asked Questions about King County Building Permits

How many building permits does PermitGrab track in King County?

PermitGrab currently tracks 6,907 building permits in King County, Washington. Data is pulled directly from the official municipal source on every collection cycle and includes permit number, address, permit type, status, estimated value, and contractor information where the source publishes it.

How fresh is the King County permit data?

PermitGrab checks the official source on each collection cycle. The source date and its observed update cadence are shown above, so you can judge the data’s recency before acting on it.

How can contractors find construction leads in King County?

Contractors find leads in King County by filtering PermitGrab by trade and ZIP code, then researching the recorded contractor and project activity. Contact details appear only where a public record includes them; saved-search email alerts track new matching records as they are published.

What’s included in the 14-day trial?

The 14-day trial includes full Pro access to King County — CSV export, trade and value-tier filters, lead scoring, and violation cross-reference flags. Contractor phone and website reveals are included where source-published. Card required to start; cancel anytime before day 14.

Can I cancel anytime?

Yes. Cancel any time from your account page — no contracts, no cancellation fees. Your subscription stays active through the end of the current billing period.

Who buys this data?

King County permit data, by use case

Same data, different angle. Pick the playbook that matches what you sell.

Contractors & subs
Recent King County contractor activity is a signal for labor and material demand. Contact details appear only where the public source publishes them.
Home service companies
An addition or remodel can be useful project context for HVAC, plumbing, or warranty outreach. Review the project signal before outreach.
Solar installers
Roof permits and electrical upgrades in King County provide project context for solar-market research. Filter by the current project signal and verify ownership separately.
Insurance agents
King County renovations can identify properties for a policy-review workflow. Confirm coverage needs independently before contacting a property owner.
Material suppliers & manufacturer reps
Choose a product-line research workflow, then use published job type, description, and value fields where available for territory and demand research. A permit is not a materials order, purchase signal, or open bid.
Developers & new construction
Sort source-published new-construction records by project value and type to research active projects and property activity, with contractor details where the record publishes them.
Free resources

More on King County & U.S. construction activity

Free permit tools
Permit lookup tools and a free city-by-city volume lookup — no signup required.
Permit activity badge
Show clients King County permit activity from public records — copy one line of HTML for your website.

More Washington permit data

Seattle permits Spokane permits Tacoma permits Bellevue permits Vancouver permits Everett permits Kirkland permits Bellingham permits Pierce County permits Kitsap County permits

Comparing permit-data tools? See BuildZoom vs Shovels vs PermitGrab (2026) — how to compare market coverage, source freshness, and available record fields.

Choose your market →
Then finish
setup