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
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
2026-08-14 General Construction Complex - Single Seattle Pollock, Inc
2026-08-14 General Construction Moderate - Single tammi kim
2026-08-14 General Construction Complex - Single Jinny Yoon
2026-08-14 General Construction 19119 SE 174TH ST RENTON WA 98058
Owner: Tom··· 🔒
Pressurized System (New)-Single Family residential J COOPER DESIGN
2026-08-14 HVAC/Mech 21227 NE 154TH ST, WOODINVILLE WA 98077 21227 NE 154TH ST, WOODINVILLE, WA 98077 Daniel Hammer
2026-08-14 General Construction Complex - Event 16+ Recetas de Abuelita
2026-08-14 General Construction Moderate - Single Heung Lee
2026-08-14 HVAC/Mech 5823 231ST AVE NE, REDMOND WA 98053 5823 231ST AVE NE, REDMOND, WA 98053 furnace Cory Hesseltine
2026-08-14 Fire Protection 20020 107TH AVE SW Pump out and triple rinse 500-gallon heating oil tank. Foam fill tank and seal a… Wendi Wise
2026-08-14 General Construction Temporary Event Blanket Permit Tolo Events LLC
2026-08-14 General Construction Complex - Event 13 Langostino Sushi Burrito/Tornado Potato? Gyopo Chicken
2026-08-14 General Construction Moderate - Single Jené Miller
2026-08-14 General Construction 27110 94TH AVE SW, VASHON WA 98070 BIG ROCK HORSE RANCH LLC - DETACHED ACCESSORY DWELLING UNIT residential
2026-08-14 General Construction Complex - Multiple Morales, Jazlyn
2026-08-14 General Construction Complex - Event 16+ Vazquez Mora, Faviola
2026-08-14 General Construction Complex - Single Carretas Pupuseria y taqueria
2026-08-14 HVAC/Mech 13572 280TH AVE NE, DUVALL WA 98019 13572 280TH AVE NE, DUVALL, WA 98019 Daniel Hammer
2026-08-14 Electrical AT&T antenna and radio swap at existing colocation on BPA transmission tower, pe… replacement
2026-08-14 Roofing 19219 SE AUBURN BLACK DIAMOND RD PREVIOUS EXPIRED PERMIT WAS NOT COMPLETED. COMPLETE THE SINGLE FAMILY RESIDENCE …
2026-08-14 General Construction 13706 SE 170TH ST CONSTRUCT AN ADDITION TO EXISTING SFR (BEDROOM AND WIC) AND REMODEL BATHROOM AND… Mike Webb
2026-08-14 General Construction 6809 RIPLEY LN SE REPLACE FRAMING AND DECKING ON AN EXISTING APPROXIMATELY 250 SF DOCK ON LAKE WAS… 250 roof sf replacement New roof Clark Stahl
2026-08-14 Fire Protection 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 Fire Protection 27133 SE GRAND RIDGE DR TO FINAL FIRP14-0065. Corrections from final inspection of FIRP14-0065: Provide … sprinkler Mike Hutchinson
2026-08-13 HVAC/Mech 816 294TH AVE NE 1 FURNACE; 1 HEAT PUMP furnace, heat pump Lucinda Honeycutt
📞 (•••) •••-••••
2026-08-13 General Construction 3202 S JUDKINS ST Seattle WA 98144
Owner: BRE··· 🔒
Natural Gas Residential residential GEORGE GAS PIPING LLC
2026-08-13 HVAC/Mech 15321 189TH AVE NE 1 AIR CONDITIONER Home Comfort Alliance
📞 (•••) •••-••••
2026-08-13 General Construction 16844 429TH AVE SE A portion of the structure is settling and needs to be stabilized. We are going … Permit Manager
📞 (•••) •••-••••
2026-08-13 HVAC/Mech 5955 S LANGSTON RD 1 AIR CONDITIONER Home Comfort Alliance
📞 (•••) •••-••••
2026-08-13 HVAC/Mech 17812 197TH AVE NE 1 DUCTLESS HEAT PUMP heat pump Katy Kehle
📞 (•••) •••-••••
2026-08-13 Electrical 28811 NE TOLT HILL RD Replace existing AT&T wireless equipment on American Tower owned monopole as per… replacement Ron Evenson
2026-08-13 Electrical 34829 46TH AVE S Remove 12 Antenna Replace with 6 like Antenna. Remove 12 TMAs Replace with 6 lik… replacement Andrew Sottero
2026-08-13 Roofing 33314 SE 42ND ST REMOVE NO EXISTING ROOFING. SUPPLY AND INSTALL A MECHANICALLY FASTENED THERMOPLA… tpo, flat New installation New roof Tony Sanchez
2026-08-13 Roofing 9708 30TH AVE SW APPLICANT HAS SUBMITTED A REVISION APPLICATION FOR THE ADU. THE PROPOSED REVISIO… Stepan Abramov
2026-08-13 Structural 11015 GLEN ACRES DR S REPAIR OF DAMAGED DECKS ON ONE STACK WITHIN DIVISION 7, INCLUDING SELECTIVE STUC… Richard Creamer
2026-08-13 Plumbing 3503 SW 106TH ST Seattle WA 98146
Owner: SCH··· 🔒
Plumbing Residential Single Family SCHULTE PLUMBING LLC
2026-08-13 Plumbing 2623 3RD AVE N Seattle WA 98109
Owner: Ret··· 🔒
Plumbing Residential Single Family Simba Solutions CO LLC
2026-08-13 HVAC/Mech 4244 S 290TH ST 1 HEAT PUMP heat pump Jason Bergstrom
2026-08-13 HVAC/Mech 21828 251ST AVE SE 1 AIR HANDLER; 1 HEAT PUMP heat pump Cory Hesseltine
2026-08-13 Plumbing 4663 36TH AVE W Seattle WA 98199
Owner: Nic··· 🔒
Plumbing Residential Single Family BAZAIL PLUMBING LLC
2026-08-13 General Construction 4520 BEACH DR SW Seattle WA 98116
Owner: Lak··· 🔒
Natural Gas Residential residential Lakeside Plumbing and Heating, Inc.
2026-08-13 Plumbing 218 31ST AVE E Seattle WA 98112
Owner: ADV··· 🔒
Plumbing Residential Single Family ADVANCED PLUMBING II, LLC
2026-08-13 Plumbing 301 W NICKERSON ST SEATTLE WA 98119
Owner: SEA··· 🔒
Plumbing Large Commercial 5A Otter Plumbing LLC
2026-08-13 Plumbing 1191 2ND AVE, SEATTLE, WA 98101
Owner: 2ND··· 🔒
Backflow Assembly SJS Mechanical Services
2026-08-13 Plumbing 19747 SE 277TH ST WA 98042
Owner: Mic··· 🔒
Plumbing Residential Single Family FAST WATER HEATER COMPANY
2026-08-13 General Construction 3019 47TH AVE SW Seattle WA 98116
Owner: MIL··· 🔒
Natural Gas Residential residential BRITTON PLMB & MECHANICAL LLC
2026-08-13 Plumbing 6026 35TH AVE NW Seattle WA 98107
Owner: Cai··· 🔒
Backflow Assembly Greenwood Heating and Home Services
2026-08-13 Fire Protection 9655 16TH AVE SW Summer Family Block Party, vendors, beer gardens, and lawn games Event Set-up Se…
2026-08-13 Plumbing 1301 R 5th Ave NE Unit: L230 Light-Rail Seattle WA 98125
Owner: No ··· 🔒
Backflow Assembly Acco
2026-08-13 General Construction Complex - Event 04 HEAVY RESTAURANT GROUP
2026-08-13 General Construction 3402 I ST NE Auburn WA 98002 Multiple Renovations Jen Anderson
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Permit Types in King County
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.

Nearby Washington Cities — explore building permits in other Washington cities

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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King County permits by trade

King County addition permits King County concrete & masonry permits King County demolition permits King County electrical permits King County fire protection permits King County general construction permits King County hvac permits King County interior renovation permits King County landscaping permits King County new construction permits King County plumbing permits King County roofing permits King County structural permits King County windows & doors permits
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