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 →

🔔 Get King County Permit Alerts

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

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Recent project activity

Recent permit records with source-published project details. A named business identifies the recorded project team; it is not a claim that the business is seeking bids.

Brennan Heating
2026-10-29
📍 11260 3RD AVE S
HVAC furnace ✓ License active
Veniamin Gnatyuk
2026-10-29
📍 1067 SW 97TH ST
HVAC heat pump ✓ License active
Owner of record
Greenwood Heating and AC
2026-10-29
📍 16219 143RD PL SE
HVAC furnace ✓ License active

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
2026-10-30 HVAC
Source type: Building/Mechanical/Residential/NA
 39800 224TH AVE SE 1 FURNACE; 1 HEAT PUMP furnace, heat pump Clara Diaz
2026-10-30 General Construction
Source type: Moderate - Event 16+
 — Moderate - Event 16+ galileos mobile pizzeria
2026-10-30 HVAC
Source type: Building/Mechanical/Residential/NA
 18719 194TH AVE NE 1 FURNACE furnace CM Heating
2026-10-30 General Construction
Source type: OSS Repair or Modification Permit
 16021 NE 169TH PL WA 98072
Owner: Pau··· 🔒
OSS Repair or Modification Northrup Construction
2026-10-29 HVAC
Source type: Building/Mechanical/Residential/NA
 11260 3RD AVE S 1 FURNACE furnace Brennan Heating
📞 (•••) •••-••••
2026-10-29 HVAC
Source type: Building/Mechanical/Residential/NA
 1067 SW 97TH ST 1 DUCTLESS HEAT PUMP heat pump Veniamin Gnatyuk
📞 (•••) •••-••••
2026-10-29 HVAC
Source type: Building/Mechanical/Residential/NA
 16219 143RD PL SE 1 FURNACE furnace Greenwood Heating and AC
📞 (•••) •••-••••
2026-10-29 General Construction
Source type: 22b. Natural Gas (by Contractor) – Residential - without Plan Review*
 4129 PALATINE AVE N Seattle WA 98103
Owner: STE··· 🔒
Natural Gas Residential residential GEORGE GAS PIPING LLC
2026-10-29 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 12724 PHINNEY AVE N Seattle WA 98133
Owner: HUY··· 🔒
Plumbing Residential Single Family INTERNATIONAL PLUMBING INC
2026-10-29 HVAC
Source type: Building/Mechanical/Residential/NA
 14247 147TH PL SE 1 FURNACE furnace South West Plumbing
📞 (•••) •••-••••
2026-10-29 HVAC
Source type: Building/Mechanical/Residential/NA
 14859 SE 113TH ST 1 FURNACE furnace Greenwood Heating and AC
📞 (•••) •••-••••
2026-10-29 HVAC
Source type: Building/Mechanical/Residential/NA
 6010 284TH WAY NE 1 AIR CONDITIONER Miriam Chavez
📞 (•••) •••-••••
2026-10-29 HVAC
Source type: Building/Mechanical/Residential/NA
 21022 NE 165TH ST 1 FURNACE; 1 HEAT PUMP furnace, heat pump Greenwood Heating and AC
📞 (•••) •••-••••
2026-10-29 HVAC
Source type: Building/Mechanical/Residential/NA
 2425 291ST AVE NE 1 HEAT PUMP heat pump Brennan Heating
📞 (•••) •••-••••
2026-10-29 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 4516 48TH AVE SW Seattle WA 98116
Owner: Rus··· 🔒
Plumbing Residential Single Family NIRVANA MECHANICAL LLC
2026-10-29 General Construction
Source type: Building Residential Site
 33207 148TH AVE SE, AUBURN WA 98092 NIJJAR - SITE REVISION - DWEL24-0177 - Nijjar SFR residential —
2026-10-29 New Construction
Source type: Residential Building - ADU
 3225 S 295TH ST, AUBURN WA 98001 ZAMOA ATTACHED ADU ADDITION residential —
2026-10-29 HVAC
Source type: Building/Mechanical/Residential/NA
 8515 S 113TH ST 1 DUCTLESS HEAT PUMP heat pump Seth Swetman
2026-10-29 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 6054 212TH AVE NE WA 98053
Owner: MIL··· 🔒
Plumbing Residential Single Family JS PLUMBING INC
2026-10-29 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 149 NE 51ST ST Seattle WA 98105
Owner: Sou··· 🔒
Plumbing Residential Single Family Jet City Plumbing LLC
2026-10-29 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 7728 44TH AVE NE Seattle WA 98115
Owner: JMS··· 🔒
Plumbing Residential Single Family HD PARTNERS
2026-10-29 General Construction
Source type: 63. Water Heater Replacement - Residential
 2607 WESTERN AVE Seattle WA 98121
Owner: Chr··· 🔒
Water Heater Replacement Residential residential FAST WATER HEATER
2026-10-29 General Construction
Source type: 63. Water Heater Replacement - Residential
 9825 7TH AVE SW WA 98106
Owner: Eas··· 🔒
Water Heater Replacement Residential residential FAST WATER HEATER
2026-10-29 General Construction
Source type: 63. Water Heater Replacement - Residential
 4528 20TH AVE NE Seattle WA 98105
Owner: YWE··· 🔒
Water Heater Replacement Residential residential JANES COMPANY INC, THE
2026-10-29 Addition
Source type: Residential Building - Addition-Improvement
 38020 SE 88TH ST, SNOQUALMIE WA 98065 (PRO) JENKINS SHEATHING REPLACEMENT —
2026-10-29 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 4618 S ANGELINE ST Seattle WA 98118
Owner: Lyl··· 🔒
Plumbing Residential Single Family EVERGREEN HYDRONICS AND MECHANICAL LLC
2026-10-29 General Construction
Source type: Moderate Food Handling - Single Event Permit
 — Moderate - Single Aha Sugar Co
2026-10-29 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 7726 B 44TH AVE NE Seattle WA 98115
Owner: JMS··· 🔒
Plumbing Residential Single Family HD PARTNERS
2026-10-29 General Construction
Source type: Permanent Food Plan Review
 806 PIKE ST Seattle WA 98101 General Food Plan Review Vazquez Mora, Faviola
2026-10-29 General Construction
Source type: 22b. Natural Gas (by Contractor) – Residential - without Plan Review*
 7516 337TH PL SE WA 98024
Owner: KAT··· 🔒
Natural Gas Residential residential Washington Generators LLC
2026-10-29 General Construction
Source type: 22b. Natural Gas (by Contractor) – Residential - without Plan Review*
 7761 LAKEMONT DR NE Seattle WA 98115
Owner: BNR··· 🔒
Natural Gas Residential residential FIVE STAR PLUMBING & ROOTER LLC
2026-10-29 Roofing
Source type: Addition-Improvement - Tenant
 43204 SE 172ND ST, NORTH BEND WA 98045 FIRE DIST 38 - COMMERCIAL RE-ROOF - Fire Station 88 replacement Re-roof —
2026-10-29 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 1111 29TH AVE S Seattle WA 98144
Owner: D H··· 🔒
Plumbing Residential Single Family D HENRY INC
2026-10-29 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 5706 25TH AVE NE Seattle WA 98105
Owner: Rib··· 🔒
Plumbing Residential Single Family LITTLE GUY PLMBNG & MECH LLC
2026-10-29 General Construction
Source type: Minimal Food Handling - Single Event Permit
 — Minimal - Single Kenston Farms DBA Wedge Hollow…
2026-10-29 Interior Renovation
Source type: Building/Residential Building/Addition-Improvement
 10000 30TH AVE SW CONSTRUCT FIRST- AND SECOND-FLOOR ADDITIONS TO EXPAND THE EXISTING RESIDENCE FOR… —
2026-10-29 General Construction
Source type: 22b. Natural Gas (by Contractor) – Residential - without Plan Review*
 18060 SE 313TH ST WA 98092
Owner: ERI··· 🔒
Natural Gas Residential residential Washington Generators LLC
2026-10-29 HVAC
Source type: Building/Mechanical/Residential/NA
 9335 SW 204TH ST 1 DUCTLESS HEAT PUMP heat pump Install Coordinator
2026-10-29 General Construction
Source type: 22b. Natural Gas (by Contractor) – Residential - without Plan Review*
 8800 314TH AVE SE WA 98027
Owner: Mat··· 🔒
Natural Gas Residential residential BOB'S HEATING & A/C LLC
2026-10-29 Fire Protection
Source type: Fire/Fire Permit Systems/Miscellaneous/NA
 33010 SE 99TH ST ADDING NEW 750 KW EXTERIOR GENERATOR. A NEW 3000A, 480-277V EXTERIOR SWITCHBOARD… like for like replacement HVAC changeout —
2026-10-29 General Construction
Source type: Moderate Food Handling - Single Event Permit
 — Moderate - Single Cascara Coffee Co
2026-10-29 General Construction
Source type: 22b. Natural Gas (by Contractor) – Residential - without Plan Review*
 16015 223RD AVE NE WA 98077
Owner: Jam··· 🔒
Natural Gas Residential residential Washington Energy Services
2026-10-29 General Construction
Source type: 32b. Propane/LPG (by Contractor) - Residential - without Plan Review*
 27717 NE 34TH ST WA 98053
Owner: REN··· 🔒
Propane/LPG Residential residential Washington Generators LLC
2026-10-29 Plumbing
Source type: 41. Backflow Assembly Permit - By Contractor
 13030 SE AUBURN BLACK DIAMOND RD WA 98092
Owner: WAS··· 🔒
Backflow Assembly NATE CRUISE
2026-10-29 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 32012 199TH AVE SE WA 98042
Owner: Son··· 🔒
Plumbing Residential Single Family RossCo Pipefitters LLC
2026-10-29 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 335 NE 120TH ST Seattle WA 98125
Owner: Wil··· 🔒
Plumbing Residential Single Family Silver 2 Gold Plumbing LLC
2026-10-29 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 3415 CASCADIA AVE S Seattle WA 98144
Owner: Roo··· 🔒
Plumbing Residential Single Family VORTEX PLUMBING INC
2026-10-29 Plumbing
Source type: 02b. Plumbing (by Contractor) - Single Family & Townhouse - without Plan Review*
 5509 22ND AVE S Seattle WA 98108
Owner: Jam··· 🔒
Plumbing Residential Single Family ATLAS ESSENTIALS 7 LLC
2026-10-29 New Construction
Source type: New Commercial Construction Undeveloped
 34860 37TH AVE S, AUBURN WA 98001 Lakeland Bible Church - Deck commercial —
2026-10-29 Fire Protection
Source type: Fire/Fire Permit Systems/Alarm/NA
 22630 NE MARKETPLACE DR NORTHWEST FIRE SYSTEMS WILL BE MODIFYING THE EXITING FIRE ALARM SYSTEM. THE EXIS… fire alarm NWFS Permits
Page 7 of 139 ← Prev 1 2 … 6 7 8 138 139 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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