King County Building Permits & Property Data

Heads up: The public source includes contractor names on some current permit records, but coverage has not yet reached PermitGrab's market-level reporting threshold. This page focuses on permit records and property data; contractor names are shown where the public source publishes them.

4,433 indexed permits · King County, Washington.

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King County building permits — key stats
Newest permit 2026-09-23

PermitGrab tracks 4,433 building permits in King County, WA as of 2026-09-23.

✓ 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. Some contractor names are available from the official source, but coverage has not reached market-level reporting. This page focuses on the permit and property signals it does publish. 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 — addresses, project details, and property activity where available. 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.

4,433
Indexed Permits
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Contractor count unavailable
—
Property Owners · count unavailable
2026-09-24
Last Updated
Source date: 2026-09-23
📊 View King County source-dated permit records →

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

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Published permit & code records

Permit data through 2026-09-23
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4,433 permits sorted by date

⇄ Swipe or scroll to see address & contractor

Date Type Value Address Details Contractor / Status Save
2026-08-17 Plumbing — 2314 N 130TH ST Seattle WA 98133
Owner: Ryl··· 🔒
Plumbing Residential Single Family RYAN'S CUSTOM PLUMBING
2026-08-17 Plumbing — 731 N 35TH ST Seattle WA 98103
Owner: SEA··· 🔒
Plumbing Small Commercial VET FIRST CONSTRUCTORS LLC
2026-08-17 Fire Protection — 22305 284TH AVE SE Install 500 gallon propane tank N of main shed and west of tool shed (see site p… Christopher Bolt
2026-08-17 Fire Protection — 10500 SW 228TH ST Skateboard competition at Vashon Park District - BARC Skate Park. Project Detail… —
2026-08-17 Fire Protection — 20721 122ND ST 13D Fire Sprinkler System sprinkler Charslie Delgado
2026-08-17 Fire Protection — 16325 NE MARYMOOR WAY Smoke on the Sound is a barbecue competition event taking place in Marymoor Park… —
2026-08-17 HVAC/Mech — 20630 NE 92ND PL 1 FIREPLACE INSERT - GAS CM Heating
2026-08-17 Plumbing — 14043 177TH AVE SE WA 98059
Owner: DOM··· 🔒
Plumbing Residential Single Family FAST WATER HEATER COMPANY
2026-08-17 Plumbing — 370 LYNN ST Seattle WA 98109
Owner: C4 ··· 🔒
Plumbing Residential Single Family HD PARTNERS
2026-08-17 Plumbing — 2125 N 90TH ST Seattle WA 98103
Owner: Ram··· 🔒
Plumbing Residential Single Family FLYNN PLUMBING & MECH LLC
2026-08-17 Plumbing — 3480 27TH AVE W Seattle WA 98199
Owner: CIT··· 🔒
Plumbing Small Commercial Holmberg Company
2026-08-17 Plumbing — 7748 20TH AVE NE Seattle WA 98115
Owner: Ran··· 🔒
Plumbing Residential Single Family RED CEDAR PLUMBING & DRAIN CLN LLC
2026-08-17 Plumbing — 18200 SE 240TH ST WA 98042
Owner: TAH··· 🔒
Plumbing DIY Commercial Tahoma School District #409
2026-08-17 General Construction — 6500 19TH AVE NE Seattle WA 98115
Owner: MOR··· 🔒
Natural Gas Residential residential HD PARTNERS
2026-08-17 Plumbing — 712 E DENNY WAY Seattle WA 98122
Owner: ATT··· 🔒
Plumbing Residential Multi-Family FAST WATER HEATER COMPANY
2026-08-17 Temporary — — Temporary Event Coordinator City of Newcastle
2026-08-17 General Construction — 2828 NE SUNSET BLVD Renton WA 98056 General Food Plan Review JM Consulting & Design
2026-08-17 General Construction — — Multiple Renovations Seattle Parks and Recreation
2026-08-17 General Construction — 2215 W COMMODORE WAY Seattle WA 98199 General Food Plan Review Culture Shock LLC
2026-08-17 Plumbing — 2525 NE 92ND ST Seattle WA 98115
Owner: Kri··· 🔒
Plumbing Residential Single Family PROPLUMB LLC
2026-08-17 Plumbing — 18617 215TH WAY NE WA 98077
Owner: Ben··· 🔒
Plumbing Residential Single Family FAST WATER HEATER COMPANY
2026-08-17 General Construction — 17439 198TH AVE NE WOODINVILLE WA 98077
Owner: Eri··· 🔒
Pressurized System (New)-Single Family residential HD QUALITY SEPTIC DESIGN
2026-08-16 General Construction — — Complex - Event 16+ Cevicheria Nayarit
📞 (•••) •••-••••
2026-08-16 General Construction — 6037 NE 61ST ST Seattle WA 98115
Owner: VOK··· 🔒
Natural Gas Residential residential GEORGE GAS PIPING LLC
2026-08-16 General Construction — — Complex - Event 04 AHA TRADE INTERNATION LLC
2026-08-16 General Construction — — Complex - Event 03 Pierro Bakery
2026-08-16 General Construction — — Moderate - Event 03 Desi fusion Boba LLC
2026-08-16 General Construction — — Moderate - Single Ferguson, Sherwin
2026-08-16 General Construction — — Moderate - Event 01 Cape Drizzle
2026-08-16 Plumbing — 21811 NE 156TH ST WA 98077
Owner: Rya··· 🔒
Plumbing DIY Residential Ryan Galloway
2026-08-16 General Construction — — Complex - Single Oasis Brazilian Steak House
2026-08-16 General Construction — — Moderate - Event 16+ KOHITECTURE LLC
2026-08-16 General Construction — — Moderate - Event 04 EL PAISANO TAMALES
2026-08-16 General Construction — — Complex - Event 02 Ramirez, Mauro
2026-08-16 General Construction — — Complex - Event 08 Amara Kitchen
2026-08-16 General Construction — — Complex - Single Goren, Gisele
2026-08-16 General Construction — — Moderate - Event 02 GreenMissy
2026-08-16 General Construction — — Complex - Single Juwairriya Ahmed
2026-08-16 General Construction — — Moderate - Single Shahed Akbar
2026-08-16 General Construction — — Complex - Single Zoq LLC
2026-08-16 General Construction — — Complex - Single CM BRAZILIAN PASTRY LLC
2026-08-16 General Construction — — Moderate - Event 08 DESIREE SAMANIEGO
2026-08-16 General Construction — 9829 351ST AVE SE WA 98065
Owner: NOW··· 🔒
Natural Gas Residential residential NORTHWEST PLUMBING LLC
2026-08-16 General Construction — — Complex - Event 03 Local Bigger Burger
2026-08-16 General Construction — — Moderate - Event 03 Cassandra Camille Tuazon
2026-08-16 General Construction — — Complex - Event 14 Habibi Tacos LLC
2026-08-16 General Construction — — Moderate - Single Botanas don nacho
2026-08-16 General Construction — — Complex - Single Gulrukh Mirza
2026-08-16 General Construction — — Moderate - Event 11 Natalie's Sugarcane & Dessert LLC
2026-08-16 Plumbing — 8304 WOLCOTT AVE S Seattle WA 98118
Owner: Gin··· 🔒
Plumbing Residential Single Family REPIPE PLUMBING SOLUTIONS LLC
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Permit Types in King County
02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
894 32.4%
Building Mechanical Residential
575 20.9%
22b. Natural Gas (by Contractor) – Residential - without Plan Review*
258 9.4%
Building/Mechanical/Residential/NA
197 7.1%
41. Backflow Assembly Permit - By Contractor
181 6.6%
04b. Plumbing (by Contractor) - Small Commercial - without Plan Review*
137 5.0%
Residential Building - Addition-Improvement
136 4.9%
Complex - Event 16+
129 4.7%
03b. Plumbing (by Contractor) - Multi-Family - without Plan Review*
126 4.6%
OSS Installation Permit - New or Replacement Pressurized System for Single Family
124 4.5%
Construction Activity in King County

New building permits in King County, Washington show where construction activity is occurring. Filter the public records by trade, date, address, and project value to research active projects and property activity. Contractor names are available on some current records; contact coverage varies by filing.

About King County Building Permits

King County, Washington processes building permits covering residential construction, commercial buildouts, renovations, and specialty trade work. PermitGrab tracks 4433+ King County building permits — newest permit date: 2026-09-24 from official city sources.

Each record can show the project address, scope, permit type, and value where the city publishes them. The source-published contractor records do not meet the coverage threshold for this city. PermitGrab does not represent this as contractor-contact coverage. Where property-owner records are available, they are matched to permit addresses separately.

How to use King County permit data

Filter the current records by trade, date, address, or project value to research construction activity. The most useful workflow in this market is verifying the project signal first, then using the property data that is actually available for that address.

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

Who appears in King County permit records?

PermitGrab indexes 4,433 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 2026-09-23. Newest permit date: 2026-09-24. 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 4,433 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.

How to look up King County building permits

Search recent King County, WA building permits by address, 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, see the King County Permit Pulse.

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Monitor King County permit & property activity

Email alerts when new public records are available for new permits and property activity. Contractor names are shown where the current public filing includes them; contact coverage varies by record. Owner information is shown only where it can be matched from available public records.

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Frequently Asked Questions about King County Building Permits

How many building permits does PermitGrab track in King County?

PermitGrab currently tracks 4433 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 can research King County activity by filtering current permits by trade, location, and project type. Some current permit records include contractor names; use those source-published names alongside the project details. Property information is shown only where public records can be matched.

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. Some current permit records include source-published contractor names; contact fields appear only where published or matched. Property information is available only where public records can be matched. 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.

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.
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More Washington permit data

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

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