King County Plumbing Market Overview
King County's plumbing permit activity is currently accelerating, with 722 permits filed in the last 30 days compared to 580 in the prior 30-day window. On average, 224.5 plumbing permits are filed per month here based on the last six months of data. The most active plumbing contractors in King County include FAST WATER HEATER COMPANY, EPIC PLUMBING LLC, Monarch Plumbing.
Recent Plumbing Permits in King County
| Date | Address | Description | Status |
|---|---|---|---|
| 2026-09-20 | 6836 34TH AVE NE Seattle WA 98115 | Plumbing Residential Multi-Family | Issued |
| 2026-09-20 | 1015 NE 95TH ST Seattle WA 98115 | Backflow Assembly | 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 | 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 | 16843 SE 134TH ST WA 98059 | Plumbing DIY Residential | Issued |
| 2026-09-18 | 5521 CANFIELD PL N Seattle WA 98103 | Plumbing Residential Single Family | Issued |
| 2026-09-18 | 11501 LAKESIDE AVE NE Seattle WA 98125 | Backflow Assembly | Issued |
| 2026-09-18 | 7912 Martin Luther King Jr WAY S Seattle WA 98118 | Plumbing Residential Single Family | Issued |
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Choose this market for a free trial →Frequently Asked Questions
How many Plumbing permits were filed in King County in the last 30 days?
King County has 722 plumbing permits dated in the last 30 days in the source records currently available on PermitGrab.
What types of Plumbing work require permits in King County?
In King County, permits are typically required for plumbing permits including pipe installation, water heater replacement, sewer line repair, and backflow prevention. Always check with King County's building department for specific requirements.
How can a Plumbing business research project activity in King County?
Use PermitGrab to review matching plumbing 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 Plumbing permits updated on PermitGrab?
The newest displayed source record is dated 2026-09-20. PermitGrab checks the source on each collection cycle and publishes newer records after the source makes them available.