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.

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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 →

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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 2026-09-20

4,201 permits sorted by date

⇄ Swipe or scroll to see address & contractor

Date Type Value Address Details Contractor / Status Save
2026-07-13 HVAC/Mech 4927 236TH AVE NE, REDMOND WA 98053 4927 236TH AVE NE, REDMOND, WA 98053
2026-07-13 HVAC/Mech 28802 39TH AVE S, AUBURN WA 98001 28802 39TH AVE S, AUBURN, WA 98001
2026-07-13 HVAC/Mech 0, WA (PRO) WILLISCROFT CRAWLSPACE REVISON TO DWEL24-0169 / FIRP26-0213
2026-07-13 HVAC/Mech 21027 288TH AVE SE, MAPLE VALLEY WA 98038 21027 288TH AVE SE, MAPLE VALLEY, WA 98038
2026-07-13 HVAC/Mech 18218 SE 135TH ST, RENTON WA 98059 18218 SE 135TH ST, RENTON, WA 98059
2026-07-13 HVAC/Mech 20532 121ST WAY SE, KENT WA 98031 20532 121ST WAY SE, KENT, WA 98031
2026-07-13 HVAC/Mech 14342 SE 163RD ST, RENTON WA 98058 14342 SE 163RD ST, RENTON, WA 98058
2026-07-13 HVAC/Mech 22423 SE 322ND ST, KENT WA 98042 22423 SE 322ND ST, KENT, WA 98042
2026-07-13 General Construction 10502 SW 268TH ST, VASHON WA 98070 Arnold Code Enforcement
2026-07-13 General Construction Complex - Event 09 Theary Cambodian Foods, LLC.
2026-07-13 General Construction Complex - Single FLAVORFISH
2026-07-11 General Construction 4752 CALIFORNIA AVE SW Seattle WA 98116 General Food Plan Review L & Z Consultants
2026-07-09 HVAC/Mech 14132 209TH AVE NE, WOODINVILLE WA 98077 14132 209TH AVE NE, WOODINVILLE, WA 98077
2026-07-09 Demolition 15218 VASHON HWY SW, VASHON WA 98070 COX RESIDENCE - DEMOLITION
2026-07-09 HVAC/Mech 26630 SE 158TH ST, ISSAQUAH WA 98027 26630 SE 158TH ST, ISSAQUAH, WA 98027
2026-07-09 HVAC/Mech 20037 139TH WAY SE, KENT WA 98042 20037 139TH WAY SE, KENT, WA 98042
2026-07-09 HVAC/Mech 28721 160TH AVE SE, KENT WA 98042 28721 160TH AVE SE, KENT, WA 98042
2026-07-09 HVAC/Mech 27735 49TH AVE S, AUBURN WA 98001 27735 49TH AVE S, AUBURN, WA 98001
2026-07-09 HVAC/Mech 15830 SE 180TH CT, RENTON WA 98058 15830 SE 180TH CT, RENTON, WA 98058
2026-07-09 HVAC/Mech 6013 35TH PL SE, AUBURN WA 98092 6013 35TH PL SE, AUBURN, WA 98092
2026-07-09 HVAC/Mech 5109 S WILLOW ST, SEATTLE WA 98118 5109 S WILLOW ST, SEATTLE, WA 98118
2026-07-09 HVAC/Mech 18685 NE WOODINVILLE DUVALL RD, WOODINVILLE WA 98072 18685 NE WOODINVILLE DUVALL RD, WOODINVILLE, WA 98072
2026-07-09 HVAC/Mech 30323 154TH AVE SE, KENT WA 98042 30323 154TH AVE SE, KENT, WA 98042
2026-07-09 General Construction Moderate - Event 08 Lee, Kevin
2026-07-09 HVAC/Mech 27546 340TH AVE SE, RAVENSDALE WA 98051 27546 340TH AVE SE, RAVENSDALE, WA 98051
2026-07-09 General Construction Temporary Event Blanket Permit Teena Muma
2026-07-08 HVAC/Mech $150,000 23040 NE ALDER CREST DR, REDMOND WA 98053 SpaceX - SE03 Crane
2026-07-08 General Construction Complex - Event 16+ 2 Guys Grill on Wheels
2026-07-08 Demolition 36229 200TH AVE SE, 98092 (ART) KC PARKS KOOYMAN 2 DEMOLITION
2026-07-08 HVAC/Mech 16804 159TH PL SE, RENTON WA 98058 16804 159TH PL SE, RENTON, WA 98058
2026-07-08 HVAC/Mech 16705 NE 137TH ST, WOODINVILLE WA 98072 16705 NE 137TH ST, WOODINVILLE, WA 98072
2026-07-08 General Construction 21320 185TH AVE SE, RENTON WA 98058 KONDEYKIN ADDITION
2026-07-08 General Construction Moderate - Event 11 Classic Mini Donuts
2026-07-08 Electrical 30100 SE 86TH ST, ISSAQUAH WA 98027 BROWER ANTENNA WA6433 - PRESTON-ISSAQUAH
2026-07-08 HVAC/Mech 17264 SE 185TH ST, RENTON WA 98058 17264 SE 185TH ST, RENTON, WA 98058
2026-07-08 General Construction $104,460 25815 348TH AVE SE, RAVENSDALE WA 98051 MELGAARD RESIDENCE - ADDITION
2026-07-08 General Construction $323,376 28818 NE TOLT HILL RD, CARNATION WA 98014 JOHN DAY HOMES INC SINGLE FAMILY RESIDENCE residential
2026-07-08 HVAC/Mech 13916 175TH PL NE, REDMOND WA 98052 13916 175TH PL NE, REDMOND, WA 98052
2026-07-07 HVAC/Mech 27422 NE 30TH WAY, REDMOND WA 98053 27422 NE 30TH WAY, REDMOND, WA 98053
2026-07-07 HVAC/Mech 26515 NE 15TH ST, REDMOND WA 98053 26515 NE 15TH ST, REDMOND, WA 98053
2026-07-07 General Construction 7150 TOLT RIVER RD NE, 98014 BRODI-NATION SITE VISIT
2026-07-07 HVAC/Mech 23026 SE 448TH ST, ENUMCLAW WA 98022 23026 SE 448TH ST, ENUMCLAW, WA 98022
2026-07-07 HVAC/Mech 8903 384TH AVE SE, SNOQUALMIE WA 98065 8903 384TH AVE SE, SNOQUALMIE, WA 98065
2026-07-07 HVAC/Mech 29009 SE KENT KANGLEY RD, RAVENSDALE WA 98051 29009 SE KENT KANGLEY RD, RAVENSDALE, WA 98051
2026-07-07 HVAC/Mech 17526 151ST AVE SE, RENTON WA 98058 17526 151ST AVE SE, RENTON, WA 98058
2026-07-07 General Construction $65,949 10227 148TH AVE SE, RENTON WA 98059 [PRO] JORDAN ADDITON GARAGE
2026-07-07 HVAC/Mech 10621 3RD AVE SW, SEATTLE WA 98146 10621 3RD AVE SW, SEATTLE, WA 98146
2026-07-07 HVAC/Mech 40206 SE 53RD ST, SNOQUALMIE WA 98065 40206 SE 53RD ST, SNOQUALMIE, WA 98065
2026-07-07 HVAC/Mech 14139 216TH WAY NE, WOODINVILLE WA 98077 14139 216TH WAY NE, WOODINVILLE, WA 98077
2026-07-07 General Construction $257,072 4516 362ND AVE SE, FALL CITY WA 98024 FRY SINGLE FAMILY RESIDENCE residential
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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 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.

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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 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.
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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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