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.

4,499 indexed permits · King County, Washington.

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

PermitGrab tracks 4,499 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.

4,499
Indexed Permits
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Contractor count unavailable
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Property Owners · count unavailable
2026-09-25
Last Updated
Updated recently · 2026-09-23
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Published permit & code records

Permit data through 2026-09-23
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4,499 permits sorted by date

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Date Type Value Address Details Contractor / Status Save
2026-09-01 Plumbing — 1151 N 94TH ST Unit: 41 Seattle WA 98103
Owner: STR··· 🔒
Plumbing Residential Multi-Family PEREZ PLUMBING INC
2026-08-31 General Construction — 4324 243RD AVE NE Residential Building Permit Site Revision (RESS) to address modifications associ… Timothy McGruder
📞 (•••) •••-••••
2026-08-31 HVAC/Mech — 22104 NE 66TH PL, REDMOND WA 98053 22104 NE 66TH PL, REDMOND, WA 98053 furnace Karen Matheney
📞 (•••) •••-••••
2026-08-31 Electrical — 17821 AVONDALE RD NE PROPOSED MODIFICATION OF EXISTING WIRELESS COMMUNICATIONS FACILITY: TOWER REMOVA… 50A New installation Jacob Neuman
2026-08-31 Fire Protection — 29325 149TH WAY SE Install a new residential fire sprinkler system based on NFPA 13D and County req… residential sprinkler New construction David Sherepitka
📞 (•••) •••-••••
2026-08-31 HVAC/Mech — 13400 191ST PL SE, RENTON WA 98059 13400 191ST PL SE, RENTON, WA 98059 furnace Greenwood Heating and AC
📞 (•••) •••-••••
2026-08-31 HVAC/Mech — 14600 438TH AVE SE, NORTH BEND WA 98045 14600 438TH AVE SE, NORTH BEND, WA 98045 heat pump Greenwood Heating and AC
📞 (•••) •••-••••
2026-08-31 HVAC/Mech — 8444 S 112TH ST, SEATTLE WA 98178 8444 S 112TH ST, SEATTLE, WA 98178 furnace South West Plumbing
📞 (•••) •••-••••
2026-08-31 General Construction — 1209 NE 61ST ST Seattle WA 98115
Owner: Eve··· 🔒
Natural Gas Residential residential GEORGE GAS PIPING LLC
2026-08-31 HVAC/Mech — 13751 231ST LN NE, REDMOND WA 98053 13751 231ST LN NE, REDMOND, WA 98053 furnace Karen Matheney
📞 (•••) •••-••••
2026-08-31 HVAC/Mech — 23785 NE 168TH ST, WOODINVILLE WA 98077 23785 NE 168TH ST, WOODINVILLE, WA 98077 furnace, heat pump Home Comfort Alliance
📞 (•••) •••-••••
2026-08-31 HVAC/Mech — 12604 SE 185TH PL, RENTON WA 98058 12604 SE 185TH PL, RENTON, WA 98058 heat pump Katy Kehle
📞 (•••) •••-••••
2026-08-31 HVAC/Mech — 15935 SE 124TH PL, RENTON WA 98059 15935 SE 124TH PL, RENTON, WA 98059 furnace BelRed Permitting Department
📞 (•••) •••-••••
2026-08-31 HVAC/Mech — 16605 87TH AVE SW, VASHON WA 98070 16605 87TH AVE SW, VASHON, WA 98070 heat pump David Kallander
📞 (•••) •••-••••
2026-08-31 HVAC/Mech — 2607 S 360TH ST, FEDERAL WAY WA 98003 2607 S 360TH ST, FEDERAL WAY, WA 98003 heat pump Kim Hughes
📞 (•••) •••-••••
2026-08-31 Electrical — 32601 NE 77TH ST MODIFICATION OF AN EXISTING TELECOMMUNICATIONS FACILITY TO REPLACE AND INSTALL N… replacement Jacob Neuman
2026-08-31 Fire Protection — 16200 SE LAKE MONEYSMITH RD Install a new residential fire sprinkler system based on NFPA 13D and City requi… residential sprinkler New construction David Sherepitka
📞 (•••) •••-••••
2026-08-31 HVAC/Mech — 11225 84TH AVE S, SEATTLE WA 98178 11225 84TH AVE S, SEATTLE, WA 98178 furnace Greenwood Heating and AC
📞 (•••) •••-••••
2026-08-31 Fire Protection — 20929 NE 50TH ST STAND ALONE SYSTEM: Existing NFPA 13D system remodel of standalone fire sprinkle… sprinkler Dave Clarke
2026-08-31 HVAC/Mech — 25228 SE MIRRORMONT WAY, ISSAQUAH WA 98027 25228 SE MIRRORMONT WAY, ISSAQUAH, WA 98027 furnace Steven Vick
2026-08-31 Plumbing — 10 E ALLISON ST SEATTLE WA 98102
Owner: CHR··· 🔒
Plumbing Residential Single Family EXCELL PLUMBING INC
2026-08-31 Plumbing — 19087 NE 162ND PL WA 98072
Owner: Stu··· 🔒
Backflow Assembly Robinson Plumbing Inc
2026-08-31 Demolition — 7522 337TH PL SE DEMOLISH EXISTING UPPER FLOOR OF RESIDENCE AND CONSTRUCT NEW MAIN FLOOR ADDITION… 21A New installation Kyle Montgomery
2026-08-31 General Construction — 11842 77TH AVE S ENCLOSE AN EXISTING PATIO ATTACHED TO THE SINGLE-FAMILY RESIDENCE TO CREATE A NE… —
2026-08-31 Roofing — 32012 199TH AVE SE THIS PERMIT IS FOR THE REPAIRS OFTHE DAMAGE CAUSED BY THE RECENT FIRE AT THE SUB… replacement Roof repair Lucas Liese
2026-08-31 General Construction — 7927 207TH PL NE INSTALL 4 HELICAL PILES TO LIFT THE HOME AND PRVENT FURTHER SETTLEMENT. WORK WIL… RR Foundation
2026-08-31 Roofing — 23146 NE 128TH PL EXISTING SINGLE-FAMILY RESIDENCE FIRE DAMAGE REPAIR. SCOPE OF WORK INCLUDES COMP… replacement Roof repair YAROSLAV PETRUS
2026-08-31 Signage — — This is following a conversation with C. Holcomb, a CAD for Parcel 182203-9026 —
2026-08-31 Signage — 14500 SW CAMP SEALTH RD Construct a new horse barn for 10 horses, and associated site work. —
2026-08-31 Plumbing — 1901 41ST AVE SW Seattle WA 98116
Owner: Sic··· 🔒
Plumbing Residential Single Family NOBLE PLUMBING LLC
2026-08-31 General Construction — 18180 137TH PL SE WA 98058
Owner: HAR··· 🔒
Natural Gas Residential residential BOB'S HEATING & A/C LLC
2026-08-31 Plumbing — 370 THOMAS ST Seattle WA 98109
Owner: CIT··· 🔒
Plumbing Small Commercial HOLADAY PARKS INC
2026-08-31 Plumbing — 2150 N 107TH ST Seattle WA 98133
Owner: HEA··· 🔒
Plumbing Small Commercial Lakeridge Plumbing and Mechanical
2026-08-31 Plumbing — 1761 NW 57th ST Seattle WA 98107
Owner: Atl··· 🔒
Backflow Assembly Atlas Mechanical Inc.
2026-08-31 Plumbing — 2002 NW 56th ST Seattle WA 98107
Owner: Atl··· 🔒
Backflow Assembly Atlas Mechanical Inc.
2026-08-31 Plumbing — 12808 469TH PL SE WA 98045
Owner: Pat··· 🔒
Plumbing Residential Single Family NOBLE PLUMBING LLC
2026-08-31 Plumbing — 7063 LINCOLN PARK WAY SW Seattle WA 98136
Owner: Joh··· 🔒
Plumbing Residential Multi-Family FAST WATER HEATER COMPANY
2026-08-31 Plumbing — 1404 B N 107TH ST Seattle WA 98133
Owner: vu ··· 🔒
Plumbing Residential Single Family CNC PLUMBING
2026-08-31 Plumbing — 11501 PHINNEY AVE N Seattle WA 98133
Owner: Mod··· 🔒
Plumbing Residential Single Family Northwest Plumbing Connection
2026-08-31 Plumbing — 29206 SE 424TH ST WA 98022
Owner: Ant··· 🔒
Plumbing DIY Residential Kathryn Farrar
2026-08-31 General Construction — — Moderate - Event 16+ Matcha Box LLC
2026-08-31 General Construction — 3026 30TH AVE W Seattle WA 98199
Owner: GC ··· 🔒
Natural Gas Residential residential NW HVAC MECHANICAL INC
2026-08-31 Plumbing — 11503 PHINNEY AVE N SEATTLE WA 98133
Owner: Mod··· 🔒
Plumbing Residential Single Family Northwest Plumbing Connection
2026-08-31 Plumbing — 4523 232ND AVE NE WA 98053 Plumbing DIY Residential —
2026-08-31 General Construction — 10490 4TH AVE NE Seattle WA 98125
Owner: Nor··· 🔒
Natural Gas Residential residential OWP LLC
2026-08-31 General Construction — 11005 SE 326TH ST AUBURN WA 98092
Owner: Aly··· 🔒
Pressurized System (New)-Single Family residential Insight Septic Design
2026-08-31 Plumbing — 4319 S FERDINAND ST Seattle WA 98118
Owner: Cla··· 🔒
Plumbing Residential Single Family FAST WATER HEATER COMPANY
2026-08-31 General Construction — 17700 ALPENTAL ACCESS RD SE WA 98045 Multiple Renovations ECNW Inc
2026-08-31 General Construction — 5464 119TH AVE SE Bellevue WA 98006 Disinfectant Equipment Orca Pacific Inc
2026-08-31 Plumbing — 12128 SE 96TH PL WA 98056
Owner: Mic··· 🔒
Plumbing Residential Single Family FAST WATER HEATER COMPANY
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Permit Types in King County
02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
915 32.6%
Building Mechanical Residential
581 20.7%
22b. Natural Gas (by Contractor) – Residential - without Plan Review*
266 9.5%
Building/Mechanical/Residential/NA
196 7.0%
41. Backflow Assembly Permit - By Contractor
184 6.6%
04b. Plumbing (by Contractor) - Small Commercial - without Plan Review*
139 5.0%
Residential Building - Addition-Improvement
137 4.9%
Complex - Event 16+
131 4.7%
03b. Plumbing (by Contractor) - Multi-Family - without Plan Review*
128 4.6%
OSS Installation Permit - New or Replacement Pressurized System for Single Family
126 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 4499+ King County building permits — newest permit date: 2026-09-25 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 4,499 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: 2026-09-25. 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 4,499 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 4499 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

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.

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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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