Sewer & Septic permits in the Seattle-Tacoma-Bellevue, WA metro
306 residential sewer and septic permits in the 8 weeks from Aug 31, 2026 to Oct 25, 2026, from 7 public permit sources. Get them as a Monday Jobs list by ZIP or for the whole city area.
Quick answer. 306 residential sewer and septic permits were issued in the Seattle-Tacoma-Bellevue, WA metro in the 8 weeks from Aug 31, 2026 to Oct 25, 2026, about 38.2 a week, across 5 cities and 36 ZIP codes. Curbside Signal delivers them as a CSV filtered to your ZIPs or the whole metro.
Guarantee on every package: If a month comes in under half the 8-week average permit count for your ZIPs and trades, you get 50% off next month. If a weekly file is ever late or missing, you get 50% off next month.
Every package includes your first file within 24 hours of purchase. If we cannot deliver your first file within 24 hours of purchase, you get 50% off next month.
Busiest ZIP codes
| ZIP | Permits (8 weeks) | Average per week |
|---|---|---|
| 98374 | 32 | 4.62 |
| 98406 | 28 | 3.00 |
| 98405 | 25 | 3.12 |
| 98408 | 23 | 3.00 |
| 98391 | 21 | 3.38 |
| 98404 | 17 | 2.00 |
| 98407 | 15 | 1.75 |
| 98006 | 14 | 2.12 |
| 98444 | 13 | 1.75 |
| 98004 | 11 | 1.50 |
Average per week is the trailing 8-week figure the guarantee uses.
Cities in this metro
Smaller places (below the 10-permit city page threshold)
- Seattle, WA: 7 permits
- Everett, WA: 4 permits
Quality check: our team hand-checked 40 sample permits from this metro and trade before the cell went on sale; 40 of 40 matched the trade (100%).
The honest limit. A permit usually means the job is already sold. We say that up front. The value is what happens around it:
- Neighbor marketing around active jobs: same-age houses on the same street.
- Cross-trade follow-on demand: new roof → solar, gutters, insulation; remodel → HVAC, electrical, landscaping, pool; new build → pest, security, landscaping.
- Contractor activity: which contractors pull permits where (where the jurisdiction publishes it), and who to recruit as subs.
- Early-stage projects for commercial trades and GC subs.
Sources
- Bellevue: Source dataset. Window Aug 23, 2026 – Oct 17, 2026. Last pulled Oct 25, 2026.
- Everett: Source dataset. Window Aug 23, 2026 – Oct 17, 2026. Last pulled Oct 25, 2026.
- Pierce County unincorporated: Source dataset. Window Aug 21, 2026 – Oct 15, 2026. Last pulled Oct 25, 2026.
- Seattle (building): Source dataset. Window Aug 22, 2026 – Oct 16, 2026. Last pulled Oct 25, 2026.
- Seattle (electrical): Source dataset. Window Aug 23, 2026 – Oct 17, 2026. Last pulled Oct 25, 2026.
- Seattle (trade: mechanical/plumbing): Source dataset. Window Aug 22, 2026 – Oct 16, 2026. Last pulled Oct 25, 2026.
- Tacoma: Source dataset. Window Aug 23, 2026 – Oct 17, 2026. Last pulled Oct 25, 2026.
Questions
How many sewer and septic permits were issued in the Seattle metro recently?
306 residential sewer and septic permits were issued in the Seattle-Tacoma-Bellevue, WA metro in the 8 weeks from Aug 31, 2026 to Oct 25, 2026, about 38.2 a week, across 5 cities and 36 ZIP codes. Curbside Signal delivers them as a CSV filtered to your ZIPs or the whole metro.
Which Seattle ZIP codes have the most sewer and septic permits?
98374 (32), 98406 (28), 98405 (25), in the 8 weeks from Aug 31, 2026 to Oct 25, 2026.
How do I get Seattle sewer and septic Monday Jobs?
Request a free 10-permit sample for your ZIPs first. Starter is $20/mo for one trade and up to 5 ZIPs; Whole City is $140/mo for the whole metro and up to 5 trades. Guarantee on every package: If a month comes in under half the 8-week average permit count for your ZIPs and trades, you get 50% off next month. If a weekly file is ever late or missing, you get 50% off next month.
Does a permit mean the job is still open?
Usually not: a permit typically means the job is sold. The value is neighbor marketing around active jobs, cross-trade follow-on work, and contractor activity where the jurisdiction publishes it.
Want Seattle sewer and septic permits every week?
Send your trade, your ZIP codes and your email. We'll reply with 10 real jobs from your streets, or tell you plainly that we don't cover you yet.