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.

4,201 indexed permits · King County, Washington.

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
Newest permit 2026-09-20

PermitGrab tracks 4,201 building permits in King County, WA as of 2026-09-20.

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.

4,201
Indexed Permits
Contractor count unavailable
Property Owners · count unavailable
2026-09-21
Last Updated
Source date: 2026-09-20
📊 View King County source-dated permit records →

🔔 Get King County Permit Alerts

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

📥 Export CSV 📊 Report

Published permit & code records

Permit data through 2026-09-20
🔎 See for yourself — free: click any Reveal button to unmask up to 10 real contractor phone numbers. No account needed.

4,201 permits sorted by date

⇄ Swipe or scroll to see address & contractor

Date Type Value Address Details Contractor / Status Save
2026-09-11 Plumbing 17700 ALPENTAL ACCESS RD SE Unit: 3002 WA 98045
Owner: GOL··· 🔒
Plumbing Residential Multi-Family NOBLE PLUMBING LLC
2026-09-11 Plumbing 17700 ALPENTAL ACCESS RD SE Unit: 3006 WA 98045
Owner: GOL··· 🔒
Plumbing Residential Multi-Family NOBLE PLUMBING LLC
2026-09-11 General Construction 17956 WEST SPRING LAKE DR SE WA 98058
Owner: Gre··· 🔒
Propane/LPG Residential residential BRENNAN HEATING CO INC
2026-09-11 Plumbing 1739 NE 94TH ST Seattle WA 98115
Owner: Sco··· 🔒
Plumbing Residential Single Family RESICON LLC
2026-09-11 Plumbing 363 GARFIELD ST Seattle WA 98109
Owner: Nor··· 🔒
Plumbing Residential Single Family RESICON LLC
2026-09-11 HVAC/Mech 24920 255TH PL SE 1 FURNACE; 3 EXHAUST FAN WITH DUCT; 1 HEAT PUMP furnace, heat pump Imoana Amadeo
2026-09-11 Plumbing 9200 8TH AVE SW Seattle WA 98106
Owner: CIT··· 🔒
Plumbing Small Commercial Auburn Mechanical
2026-09-11 Plumbing 17700 ALPENTAL ACCESS RD SE Unit: 2013 WA 98045
Owner: GOL··· 🔒
Plumbing Residential Multi-Family NOBLE PLUMBING LLC
2026-09-11 General Construction Moderate - Event 03 Nura Renua LLC
2026-09-11 Plumbing 920 5TH AVE Seattle WA 98104
Owner: MAD··· 🔒
Backflow Assembly Hermanson Company LLC
2026-09-11 Plumbing 2826 NW 62ND ST Seattle WA 98107
Owner: Mar··· 🔒
Water Heater Replacement Residential residential BALLARD NATURAL GAS SRVC INC
2026-09-11 Plumbing 2401 QUEEN ANNE AVE N Seattle WA 98109
Owner: Dea··· 🔒
Plumbing Small Commercial MICHAEL J MADDEN
2026-09-11 Plumbing 8430 12TH AVE SW Seattle WA 98106
Owner: JES··· 🔒
Plumbing Residential Single Family ATLAS ESSENTIALS 7 LLC
2026-09-11 Plumbing 18109 NE 138TH PL WA 98052
Owner: eve··· 🔒
Water Heater Replacement DIY Residential residential evergreenhealth
2026-09-11 General Construction 10731 A 17TH AVE NE Seattle WA 98125
Owner: AVA··· 🔒
Natural Gas Residential residential BOB'S HEATING & A/C LLC
2026-09-11 Fire Protection 0, WA HIRSCH SINGLE FAMILY RESIDENCE (SPRINKLERS REQUIRED) residential sprinkler
2026-09-11 Plumbing 1400 37TH AVE E Seattle WA 98112
Owner: Deb··· 🔒
Plumbing Residential Single Family 5 CORNERS PLUMBING LLC
2026-09-11 General Construction Moderate - Event 12 DING TEA 36 Streets
2026-09-11 Plumbing 5010 47TH AVE S Seattle WA 98118
Owner: Kat··· 🔒
Plumbing Residential Single Family RESICON LLC
2026-09-11 Plumbing 3253 42ND AVE SW Seattle WA 98116
Owner: Kri··· 🔒
Plumbing Residential Single Family Greenwood Heating and Home Services
2026-09-11 Plumbing 3841 38TH AVE S Seattle WA 98118
Owner: Ann··· 🔒
Plumbing Residential Single Family Washington Energy Services
2026-09-11 Plumbing 942 16TH AVE E Seattle WA 98112
Owner: Mr.··· 🔒
Plumbing Residential Single Family QUALITY PLUMBING
2026-09-11 HVAC/Mech 10811 2ND AVE SW 1 AIR HANDLER; 1 HEAT PUMP heat pump Hoa Dzip
2026-09-11 General Construction Moderate - Unlimited Thomasson Family Farm, LLC
2026-09-11 General Construction 64005 NE INDEX CREEK RD Need inspiration to determine what can be done to repair riprap. Retaining wall,…
2026-09-11 General Construction Complex - Event 07 What the Fusion LLC
2026-09-11 General Construction 1208 E REMINGTON CT Seattle WA 98122 General Food Plan Review Catch Design Studio
2026-09-11 General Construction Complex - Event 09 Jonathan Santos
2026-09-11 General Construction Moderate - Event 01 Vashon Island School District
2026-09-11 General Construction 23811 OLD MILL RD SW Installing a steel bridge over an existing driveway ENFR16-0901 / PREA17-0282
2026-09-11 General Construction 18032 WEST SPRING LAKE DR SE WA 98058
Owner: Rho··· 🔒
Propane/LPG Residential residential BRENNAN HEATING CO INC
2026-09-11 Plumbing 20008 NE 122ND PL WA 98077
Owner: Jos··· 🔒
Plumbing Residential Single Family FAST WATER HEATER COMPANY
2026-09-10 HVAC/Mech 15102 RESERVE DR SE, NORTH BEND WA 98045 15102 RESERVE DR SE, NORTH BEND, WA 98045 furnace, heat pump Brennan Heating
📞 (•••) •••-••••
2026-09-10 HVAC/Mech 7704 S 120TH ST, SEATTLE WA 98178 7704 S 120TH ST, SEATTLE, WA 98178 furnace Greenwood Heating and AC
📞 (•••) •••-••••
2026-09-10 HVAC/Mech 4725 SW 244TH ST, VASHON WA 98070 4725 SW 244TH ST, VASHON, WA 98070 heat pump Jake Garner
📞 (•••) •••-••••
2026-09-10 HVAC/Mech 20623 SE 136TH ST, ISSAQUAH WA 98027 20623 SE 136TH ST, ISSAQUAH, WA 98027 furnace Greenwood Heating and AC
📞 (•••) •••-••••
2026-09-10 HVAC/Mech 34918 57TH AVE S, AUBURN WA 98001 34918 57TH AVE S, AUBURN, WA 98001 furnace Brennan Heating
📞 (•••) •••-••••
2026-09-10 HVAC/Mech 42750 SE 173RD PL, NORTH BEND WA 98045 42750 SE 173RD PL, NORTH BEND, WA 98045 heat pump Kevin Lebel
📞 (•••) •••-••••
2026-09-10 Plumbing 801 NE 71ST ST Seattle WA 98115
Owner: INT··· 🔒
Backflow Assembly JJ PLUMBING
2026-09-10 Plumbing 1766 B N NORTHGATE WAY Seattle WA 98133
Owner: Rae··· 🔒
Plumbing Residential Single Family JACUZZI BATH REMODEL OF SEA
2026-09-10 Plumbing 401 EASTLAKE AVE E Seattle WA 98109
Owner: Gre··· 🔒
Plumbing Small Commercial ADVANCED PLUMBING
2026-09-10 Plumbing 401 EASTLAKE AVE E Seattle WA 98109
Owner: Gre··· 🔒
Plumbing Small Commercial Michael Adamson
2026-09-10 General Construction 3020 NE 45TH ST Seattle WA 98105 New Construction Encore Architects
2026-09-10 Plumbing 21450 NE 79TH ST REDMOND WA 98053
Owner: For··· 🔒
Backflow Assembly Golden Eagle Plumbing
2026-09-10 Plumbing 2503 7TH AVE W Seattle WA 98119
Owner: Dre··· 🔒
Plumbing Residential Single Family SKYVIEW PLUMBING LLC
2026-09-10 General Construction 1245B NE 88th ST Seattle WA 98115
Owner: App··· 🔒
Natural Gas Residential residential BOB'S HEATING & A/C LLC
2026-09-10 Fire Protection 22908 NE ALDER CREST DR NORTHWEST FIRE SYSTEMS WILL BE MODIFYING THE EXITING FIRE ALARM SYSTEM. THE EXIS… fire alarm NWFS Permits
2026-09-10 General Construction 14412 6TH AVE S Burien WA 98168 Gravity System (New)-Single Family residential Dave Schwenk
2026-09-10 Plumbing 6716 ROOSEVELT WAY NE Seattle WA 98115
Owner: Tam··· 🔒
Backflow Assembly OWP LLC
2026-09-10 HVAC/Mech 16431 SAYBROOK DR NE, WOODINVILLE WA 98077 16431 SAYBROOK DR NE, WOODINVILLE, WA 98077 furnace, heat pump Micaela Donker
Page 15 of 85 ← Prev 1 2 14 15 16 84 85 Next →
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 4201+ King County building permits — newest permit date: 2026-09-20 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 4,201 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 2026-09-20. Newest permit date: 2026-09-20. 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 4,201 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.

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 4201 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.
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 Port Orchard permits

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

Free, no signup: look up recent King County building permits & contractors →

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
Choose your market →
Then finish
setup