Data through September 2026 · updated 19 Oct 2026
609 plumbing permits were issued in the City of Kennewick, October 2024 through September 2026: about 304 a year and 13% of all permits. 309 plumbing permits in the last 12 months (Oct 2025–Sep 2026), 3% more than the 300 in the 12 months before. The busiest month is March. The usual one took 18 days from issue to the city's final.
Permits issued each month, October 2024 through September 2026.
| Month | Permits |
|---|---|
| Oct 2024 | 23 |
| Nov 2024 | 22 |
| Dec 2024 | 18 |
| Jan 2025 | 26 |
| Feb 2025 | 28 |
| Mar 2025 | 34 |
| Apr 2025 | 30 |
| May 2025 | 16 |
| Jun 2025 | 20 |
| Jul 2025 | 33 |
| Aug 2025 | 22 |
| Sep 2025 | 28 |
| Oct 2025 | 21 |
| Nov 2025 | 29 |
| Dec 2025 | 26 |
| Jan 2026 | 18 |
| Feb 2026 | 23 |
| Mar 2026 | 43 |
| Apr 2026 | 34 |
| May 2026 | 18 |
| Jun 2026 | 20 |
| Jul 2026 | 31 |
| Aug 2026 | 22 |
| Sep 2026 | 24 |
By calendar month, 100 = an average month (the thin line). March is the busiest (152), May the quietest (67). A busy month at the permit counter usually means a longer wait for a contractor.
| Month | Index |
|---|---|
| January | 87 |
| February | 100 |
| March | 152 |
| April | 126 |
| May | 67 |
| June | 79 |
| July | 126 |
| August | 87 |
| September | 102 |
| October | 87 |
| November | 100 |
| December | 87 |
Permits issued Oct 2024–Sep 2025, at least 12 months before the file ends. Usual days is the middle permit among the 220 with a final date.
| Measure | Value |
|---|---|
| Permits issued Oct 2024–Sep 2025 | 300 |
| Finished | 73.3% |
| Expired | 20.7% |
| Usual days, issue to final | 18 |
| Middle half, days | 7–101 |
How the city filed these permits. We group its types into kinds of work; this is the split.
| Permit type | Permits | Share |
|---|---|---|
| Residential Plumbing - Residential | 356 | 58% |
| Commercial Plumbing - Commercial | 205 | 34% |
| Residential Mechanical - Residential | 24 | 4% |
| Residential Plumbing - Residential Plumbing Sewer Connection | 20 | 3% |
| Commercial Mechanical - Commercial | 4 | under 1% |
HVAC (1,108)New homes (681)Roofing (603)Remodels & repairs (488)
From our cross-city data studies: the same measure, read the same way, for every city we cover.
Plumbing permits for other places in the Tri-Cities. Each permit office keeps its own file, so the numbers are not added together.
Source: City of Kennewick EnerGov public permit layer (Public/EnerGovPublicInspection, EnerGovPermits), behind the city's Permit & Plan Explorer, read 19 Oct 2026. We count permits issued October 2024 through September 2026; denied and withdrawn permits are left out.
Building, mechanical, plumbing, sign and fire-system permits the City of Kennewick issues inside the city limits only. Richland, Pasco, West Richland and unincorporated Benton County run their own permit offices and are not in this file. Public works, utility-connection, right-of-way and grading permits are left out. Electrical permits in Washington are issued by the state Department of Labor & Industries, not the city, so they are not in this file.
Counts are permits, not jobs: one job can need several permits. Nobody paid to be on this page and nobody can. Sources and definitions →
Free to reuse with attribution (CC BY 4.0). Please credit Contractor Records and link to this page. Suggested citation:
Contractor Records, "Plumbing permits in the City of Kennewick, WA", https://contractorrecords.com/kennewick/plumbing-permits, data through September 2026, from the City of Kennewick Building Safety Division building-permit records.Link to a table: By month · Season · Days to final · Permit types.
Download the tables (CSV): Plumbing permits by month · Plumbing permits by calendar month (index) · Plumbing permits: days to final · Plumbing permits by permit type.