King County New Construction Market Overview
King County's new construction permit activity is currently accelerating, with 600 permits filed in the last 30 days compared to 484 in the prior 30-day window. On average, 213.7 new construction permits are filed per month here based on the last six months of data. The most active new construction contractors in King County include FAST WATER HEATER COMPANY, Monarch Plumbing, WEST COAST PLUMBING INC.
Recent New Construction Permits in King County
| Date | Address | Description | Status |
|---|---|---|---|
| 2026-09-20 | 7310 45TH AVE S Seattle WA 98118 | Plumbing Residential Single Family | Issued |
| 2026-09-20 | 7310 45TH AVE S Seattle WA 98118 | Plumbing Residential Single Family | Issued |
| 2026-09-20 | 7310 45TH AVE S Seattle WA 98118 | Plumbing Residential Single Family | Issued |
| 2026-09-20 | 2525 28TH AVE W Seattle WA 98199 | Plumbing Residential Single Family | Issued |
| 2026-09-19 | 23050 NE 102ND ST, REDMOND WA 98053 | MICROSOFT CORPORATION TENANT IMPROVEMENT | Intake Processing |
| 2026-09-18 | 5521 CANFIELD PL N Seattle WA 98103 | Plumbing Residential Single Family | Issued |
| 2026-09-18 | 7912 Martin Luther King Jr WAY S Seattle WA 98118 | Plumbing Residential Single Family | Issued |
| 2026-09-18 | 22032 NE 80TH ST WA 98053 | Pressurized System (New)-Single Family | Issued |
| 2026-09-18 | 22111 217TH AVE SE MAPLE VALLEY WA 98038 | Pressurized System (New)-Single Family | Issued |
| 2026-09-18 | 4224 42ND AVE S Seattle WA 98118 | Plumbing Residential Single Family | Issued |
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Research King County New Construction project activity
Access matching new construction permit records, available public-source details, and alerts when newer records are published.
Choose this market for a free trial →Frequently Asked Questions
How many New Construction permits were filed in King County in the last 30 days?
King County has 600 new construction permits dated in the last 30 days in the source records currently available on PermitGrab.
What types of New Construction work require permits in King County?
In King County, permits are typically required for new construction permits including new residential and commercial buildings. Always check with King County's building department for specific requirements.
How can a New Construction business research project activity in King County?
Use PermitGrab to review matching new construction permit records from King County’s public source. Use the displayed source date, project scope, and available record fields to research published project activity; a permit is not a request for bids.
How quickly are New Construction permits updated on PermitGrab?
The newest displayed source record is dated 2026-09-19. PermitGrab checks the source on each collection cycle and publishes newer records after the source makes them available.