King County Building Permits & Project Research

6,907 indexed permits · 1,724 contractor names in the last 90 days · King County, Washington.

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King County building permits — key stats
Active contractors 1,724
Newest permit 2026-11-05

PermitGrab tracks 6,907 building permits in King County, WA as of 2026-11-05, including 1,724 active contractors identified from filings in the last 90 days.

✓ 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:

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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 — contractors, addresses, and project values. 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.

6,907
Indexed Permits
1,724
Contractor names (90 days)
2026-11-05
Last Updated
Source date: 2026-11-05
📊 View King County source-dated permit records →

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

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Published permit & code records

Permit data through 2026-11-05
🔎 See for yourself — free: click any Reveal button to unmask up to 10 real contractor phone numbers. No account needed.

6,907 permits sorted by date

Project value is blank on every record displayed here, so the Value column is omitted.

⇄ Swipe or scroll to see address & contractor

Date Type Address Details Contractor / Status Save
2026-08-12 Demolition
Source type: SiteDevCA/Critical Areas Designation/Formal Design
 14621 260TH AVE SE Demo exisiting residnece and build new SFR —
2026-08-12 Plumbing
Source type: SiteDevCA/Critical Areas Designation/Formal Design
 22841 DOCKTON RD New septic system installation and water well drilling. —
2026-08-12 Plumbing
Source type: Plumbing Permit from Previous Permitting System
 850 NW 45TH ST Seattle 98107 Legacy Plumbing Permit OTTER PLUMBING LLC
2026-08-12 General Construction
Source type: Permanent Food Plan Review
 2212 E CHERRY ST Seattle WA 98122 General Food Plan Review Lan Bun
2026-08-12 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 8225 S 121ST ST WA 98178
Owner: Dan··· 🔒
Plumbing Residential Single Family RESICON LLC
2026-08-12 Plumbing
Source type: 08. Plumbing - Demolition or Removal
 4612 FREMONT AVE N Seattle WA 98103
Owner: Ing··· 🔒
Plumbing Demolition NORTHWEST MECHANICAL
2026-08-12 Plumbing
Source type: 01. Plumbing - Installed by Homeowner
 3713 SW SULLIVAN ST Seattle WA 98126
Owner: Rob··· 🔒
Plumbing DIY Residential Robert Stearns
2026-08-12 Plumbing
Source type: 03b. Plumbing (by Contractor) - Multi-Family - without Plan Review*
 4725 S BRANDON ST Seattle WA 98118
Owner: Shi··· 🔒
Plumbing Residential Multi-Family DEAR SERVICES
2026-08-12 New Construction
Source type: OSS Installation Permit - New or Replacement Pressurized System for Single Family
 43424 SE 145TH PL WA 98045
Owner: BUC··· 🔒
Pressurized System (New)-Single Family residential A&H Septic Systems and Materials
2026-08-12 General Construction
Source type: 22b. Natural Gas (by Contractor) – Residential - without Plan Review*
 63631 NE 194TH PL WA 98224
Owner: Ven··· 🔒
Natural Gas Residential residential Switch Electric
2026-08-12 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 1510 32ND AVE Seattle WA 98122
Owner: HOM··· 🔒
Plumbing Residential Single Family BROTHERS CONTRACTING SERV LLC
2026-08-12 Plumbing
Source type: 04b. Plumbing (by Contractor) - Small Commercial - without Plan Review*
 1530 PIKE PL Seattle WA 98101
Owner: Wil··· 🔒
Plumbing Small Commercial PARADISO MECHANICAL
2026-08-12 General Construction
Source type: 22b. Natural Gas (by Contractor) – Residential - without Plan Review*
 20929 NE 50th St Redmond WA 98053
Owner: Hun··· 🔒
Natural Gas Residential residential Hung Le
2026-08-12 General Construction
Source type: 22b. Natural Gas (by Contractor) – Residential - without Plan Review*
 10551 41ST PL NE Unit: SFR Unit #D Seattle WA 98125
Owner: Jam··· 🔒
Natural Gas Residential residential ATLAS ESSENTIALS 7 LLC
2026-08-12 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 612 MALDEN AVE E Seattle WA 98112
Owner: 1st··· 🔒
Plumbing Residential Single Family NIRVANA MECHANICAL LLC
2026-08-12 General Construction
Source type: Complex Food Handling - Multiple (5) Event Permit Package
 — Complex - Multiple Ahmed Aslam
2026-08-12 General Construction
Source type: 22b. Natural Gas (by Contractor) – Residential - without Plan Review*
 4815 BEACH DR SW Seattle WA 98116
Owner: Dan··· 🔒
Natural Gas Residential residential Raptor Plumbing and Sewer
2026-08-12 HVAC
Source type: Building/Mechanical/Residential/NA
 24232 NE 130TH PL 1 FURNACE; 1 AIR CONDITIONER furnace Carol Bengtson
2026-08-12 HVAC
Source type: Building/Mechanical/Residential/NA
 19316 SE 178TH PL 1 FURNACE; 1 HEAT PUMP furnace, heat pump Ruslan Beletskiy
2026-08-12 General Construction
Source type: 22b. Natural Gas (by Contractor) – Residential - without Plan Review*
 43424 SE 145TH PL WA 98045
Owner: Buc··· 🔒
Natural Gas Residential residential BOB'S HEATING & A/C LLC
2026-08-12 General Construction
Source type: Moderate - Event 16+
 — Moderate - Event 16+ BOBAHOLIC CAFE
2026-08-12 New Construction
Source type: OSS Installation Permit - New or Replacement Pressurized System for Single Family
 26402 SE 230TH ST MAPLE VALLEY WA 98038
Owner: MAT··· 🔒
Pressurized System (New)-Single Family residential TOOLEY DESIGN
2026-08-12 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 1616 MAGNOLIA BLVD W Seattle WA 98199
Owner: Pat··· 🔒
Plumbing Residential Single Family I NEED A PLUMBER NOW
2026-08-12 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 5025 FAUNTLEROY WAY SW Seattle WA 98136
Owner: INT··· 🔒
Plumbing Residential Single Family Monarch Plumbing
2026-08-12 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 3808 S MEAD ST Seattle WA 98118
Owner: Hol··· 🔒
Plumbing Residential Single Family RED CEDAR PLUMBING & DRAIN CLN LLC
2026-08-12 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 7547 21ST AVE NE Seattle WA 98115
Owner: HD ··· 🔒
Plumbing Residential Single Family HD Services
2026-08-12 New Construction
Source type: OSS Installation Permit - New or Replacement Pressurized System for Single Family
 18023 196TH AVE SE RENTON WA 98058
Owner: Rob··· 🔒
Pressurized System (New)-Single Family residential COLE SEPTIC DESIGN
2026-08-11 New Construction
Source type: OSS Installation Permit - New or Replacement Pressurized System for Single Family
 7041 PRESTON FALL CITY RD SE WA 98027
Owner: Jam··· 🔒
Pressurized System (New)-Single Family residential WHALEN DESIGNS LLC
2026-08-11 HVAC
Source type: Building/Mechanical/Residential/NA
 14003 SE 142ND ST 1 AIR CONDITIONER Home Comfort Alliance
📞 (•••) •••-••••
2026-08-11 HVAC
Source type: Building/Mechanical/Commercial/NA
 9627 DES MOINES MEMORIAL DR S INSTALL ONE TYPE I COMMERCIAL KITCHEN HOOD AND ASSOCIATED MAKE-UP AIR SYSTEM. New installation HVAC installation Keith Ta
📞 (•••) •••-••••
2026-08-11 General Construction
Source type: 22b. Natural Gas (by Contractor) – Residential - without Plan Review*
 1210 B 38TH AVE E Seattle WA 98112
Owner: Jam··· 🔒
Natural Gas Residential residential home comfort alliance
📞 (•••) •••-••••
2026-08-11 Interior Renovation
Source type: Building/Residential Building/Addition-Improvement
 14212 SE 188TH WAY INTERIOR REMODEL TO RECONFIGURE THE FLOOR PLAN BY RESIZING AN EXISTING BEDROOM, … —
2026-08-11 General Construction
Source type: Permanent Food Plan Review
 4415 FAUNTLEROY WAY, SW Seattle WA 98126 General Food Plan Review PRAPANAT CRAWFORD
2026-08-11 Signage
Source type: SiteDevCA/Critical Areas Designation/Formal Design
 — CAD designation for parcel 2221069034 —
2026-08-11 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 8632 B 37TH AVE S Seattle WA 98118
Owner: Mal··· 🔒
Plumbing Residential Single Family RAINIER CUSTOM PLUMBING
2026-08-11 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 8851 32nd AVE SW Seattle WA 98126
Owner: Moe··· 🔒
Plumbing Residential Single Family Mr Simmons Plumbing Co, Inc.
2026-08-11 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 5021 FAUNTLEROY WAY SW Seattle WA 98136
Owner: INT··· 🔒
Plumbing Residential Single Family ×2 Monarch Plumbing
2026-08-11 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 3548 S HUDSON ST Seattle WA 98118
Owner: Mar··· 🔒
Plumbing Residential Single Family FALCON PLUMBING LLC
2026-08-11 General Construction
Source type: 22b. Natural Gas (by Contractor) – Residential - without Plan Review*
 7708 18TH AVE NE Seattle WA 98115
Owner: Meg··· 🔒
Natural Gas Residential residential Choice Home Services, Inc.
2026-08-11 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 8624 37TH AVE S Seattle WA 98118
Owner: Mal··· 🔒
Plumbing Residential Single Family RAINIER CUSTOM PLUMBING
2026-08-11 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 8622 37TH AVE S Seattle WA 98118
Owner: Mal··· 🔒
Plumbing Residential Single Family RAINIER CUSTOM PLUMBING
2026-08-11 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 2011 5TH AVE N Seattle WA 98109
Owner: Jac··· 🔒
Plumbing Residential Single Family TIMELESS PLUMBING LLC
2026-08-11 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 6233 38TH AVE NE Seattle WA 98115
Owner: Stu··· 🔒
Plumbing Residential Single Family R&D PLUMBING LLC
2026-08-11 Plumbing
Source type: 04b. Plumbing (by Contractor) - Small Commercial - without Plan Review*
 1201 3RD AVE Seattle WA 98101
Owner: WRI··· 🔒
Plumbing Small Commercial AMERICAN MECHANICAL CORP
2026-08-11 General Construction
Source type: 22b. Natural Gas (by Contractor) – Residential - without Plan Review*
 819 NE 58TH ST Seattle WA 98105
Owner: Mat··· 🔒
Natural Gas Residential residential GOLDSTAR PLUMBING LLC
2026-08-11 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 5023 FAUNTLEROY WAY SW Seattle WA 98136
Owner: INT··· 🔒
Plumbing Residential Single Family ×2 Monarch Plumbing
2026-08-11 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 5320 47TH AVE SW Seattle WA 98136
Owner: Red··· 🔒
Plumbing Residential Single Family Redi-Flo Plumbing
2026-08-11 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 5027 A FAUNTLEROY WAY SW Seattle WA 98136
Owner: INT··· 🔒
Plumbing Residential Single Family Monarch Plumbing
Page 109 of 139 ← Prev 1 2 … 108 109 110 138 139 Next →
Permit Types in King County
02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
1,480 34.7%
Building Mechanical Residential
723 17.0%
22b. Natural Gas (by Contractor) – Residential - without Plan Review*
465 10.9%
Building/Mechanical/Residential/NA
342 8.0%
41. Backflow Assembly Permit - By Contractor
313 7.3%
04b. Plumbing (by Contractor) - Small Commercial - without Plan Review*
226 5.3%
Complex - Event 16+
198 4.6%
OSS Installation Permit - New or Replacement Pressurized System for Single Family
185 4.3%
Residential Building - Addition-Improvement
172 4.0%
03b. Plumbing (by Contractor) - Multi-Family - without Plan Review*
156 3.7%
Construction Activity in King County

New building permits in King County, Washington show where construction activity is being recorded. Contractors can filter the available public records by trade, date, address, and project value to research projects and plan outreach using the fields the source publishes.

About King County Building Permits

King County, Washington processes building permits covering residential construction, commercial buildouts, renovations, and specialty trade work. PermitGrab tracks 6,907+ King County building permits — newest permit date: 2026-11-05 from this listing's source.

Building permits in King County can document new construction, renovations, and specialty work. The fields in a public record vary by filing, but may include a project address, scope, estimated cost, or contractor name. Use the displayed source information to evaluate whether a record is useful for your market research.

How Contractors Use King County Permit Data

HVAC contractors, electricians, plumbers, and roofers can use King County building-permit records to research visible construction activity. A permit may signal a project that is relevant to a particular trade, but the source record does not establish that its owner is seeking a bid.

Use the published date, project details, and any named business contact to research a project before outreach. Public records are not exclusive, and outreach results depend on the market, project, and your own process.

Eligible subscribers can receive trade-filtered alerts when new records are collected. Alert timing and field coverage follow the underlying source rather than a universal schedule.

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

Who appears in King County permit records?

PermitGrab indexes 6,907 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 2026-11-05. Newest permit date: 2026-11-05. 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 6,907 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.

1 workflow for King County research

Start with the published project record.

🕵️

The project-team lookup

Search a business name to review its recorded permit activity in King County and the project details the public source publishes. Use the scope, timing, and address to research complementary work; a record is not a request for bids.

Research King County project activity — Pro $149/mo

How to look up King County building permits

Search recent King County, WA building permits by address, contractor, 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 and the most active contractors, see the King County Permit Pulse.

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Research King County project activity

Email alerts when new public records are available for newly published permits and recorded project-team activity. Contact details are shown only where the public source publishes them. 14-day Pro trial for alerts — card required; Pro $149/mo unlocks full available 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 6,907 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 find leads in King County by filtering PermitGrab by trade and ZIP code, then researching the recorded contractor and project activity. Contact details appear only where a public record includes them; saved-search email alerts track new matching records as they are published.

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. Contractor phone and website reveals are included where source-published. 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.

Contractors & subs
Recent King County contractor activity is a signal for labor and material demand. Contact details appear only where the public source publishes them.
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, with contractor details where the record publishes them.
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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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