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Plumbing permits in Chattanooga, TN

Data through September 2026 · updated 18 Oct 2026

4,073 plumbing permits were issued in Chattanooga, October 2024 through September 2026: about 2,036 a year and 31% of all permits. 2,117 plumbing permits in the last 12 months (Oct 2025–Sep 2026), 8% more than the 1,956 in the 12 months before. The busiest month is August. The usual one took 91 days from issue to the city's final. 37421 has the most, 950.

4,073permits issued
2,117last 12 months
Augbusiest month
91days, usual issue to final
58%finished
Sep 2026records through

Plumbing permits by month

Permits issued each month, October 2024 through September 2026.

Oct 2024: 172Oct2024Nov 2024: 159Dec 2024: 143Jan 2025: 143Jan2025Feb 2025: 127Mar 2025: 158Apr 2025: 177May 2025: 156Jun 2025: 154Jul 2025: 177JulAug 2025: 217Sep 2025: 173Oct 2025: 229Nov 2025: 109Dec 2025: 133Jan 2026: 153Jan2026Feb 2026: 183Mar 2026: 208Apr 2026: 159May 2026: 164Jun 2026: 197Jul 2026: 185JulAug 2026: 195Sep 2026: 202
The same numbers as a table
MonthPermits
Oct 2024172
Nov 2024159
Dec 2024143
Jan 2025143
Feb 2025127
Mar 2025158
Apr 2025177
May 2025156
Jun 2025154
Jul 2025177
Aug 2025217
Sep 2025173
Oct 2025229
Nov 2025109
Dec 2025133
Jan 2026153
Feb 2026183
Mar 2026208
Apr 2026159
May 2026164
Jun 2026197
Jul 2026185
Aug 2026195
Sep 2026202

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When plumbing permits are filed

By calendar month, 100 = an average month (the thin line). August is the busiest (121), November the quietest (79). A busy month at the permit counter usually means a longer wait for a contractor.

January: 87 (100 = an average month)February: 91 (100 = an average month)March: 108 (100 = an average month)April: 99 (100 = an average month)May: 94 (100 = an average month)June: 103 (100 = an average month)July: 107 (100 = an average month)August: 121 (100 = an average month)121September: 110 (100 = an average month)October: 118 (100 = an average month)November: 79 (100 = an average month)December: 81 (100 = an average month)JFMAMJJASOND
The same numbers as a table
MonthIndex
January87
February91
March108
April99
May94
June103
July107
August121
September110
October118
November79
December81

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How long a plumbing permit takes

Permits issued Oct 2024–Sep 2025, at least 12 months before the file ends. Usual days is the middle permit among the 1,142 with a final date.

MeasureValue
Permits issued Oct 2024–Sep 20251,956
Finished58.4%
Usual days, issue to final91
Middle half, days20–129

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ZIP codes with the most plumbing permits

Counted at the property's ZIP code. Share is the part of the city's 4,073 plumbing permits.

ZIP codePermitsShare
3742195023%
3740550212%
3734350212%
374043288%
374062747%
374192596%
374112175%
374102035%
374161774%
374151664%

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The city's own permit types

How the city filed these permits. We group its types into kinds of work; this is the split.

Permit typePermitsShare
Plumbing Permit3,26480%
Gas Permit80920%

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Most active contractors by permits filed

The contractors named on the most plumbing permits in the City of Chattanooga Hub (ChattaData) file, October 2024 through September 2026, with 5 or more each. Share is the part of all 4,073 plumbing permits; 85% of them name a contractor we can show. This is volume, not quality: more permits doesn't mean better work. Individuals' names, owner-builders and blanks are left out.

ContractorPermitsShare
MC Plumbing LLC40810%
Romanoff Plumbing1955%
Mainline1804%
Rise Plumbing Inc1103%
Bio Plumbing1033%
One Hour Heating and Air Conditioning872%
Champion Mechanical, LLC832%
USA Plumbing Heating Air782%
G D Plumbing672%
Riverside Plumbing662%

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How Chattanooga compares with other cities

From our cross-city data studies: the same measure, read the same way, for every city we cover.

How these numbers are made

Source: City of Chattanooga Hub (ChattaData), All Permits (nightly CSV extract, ArcGIS item 9937e99e93de467eae5f592061c2672c), read 18 Oct 2026. We count permits issued October 2024 through September 2026; denied and withdrawn permits are left out.

Residential permits the City of Chattanooga Land Development Office issues inside the city: building, repair and replace, modification and demolition permits for homes, and electrical, plumbing, mechanical and gas permits the city marks residential. Commercial, industrial and institutional permits, street cuts, land disturbing, low voltage permits and certificates of occupancy in the same file are not counted. Unincorporated Hamilton County, East Ridge, Red Bank, Signal Mountain and the other towns run their own permit offices and are not in this file.

  • The file names a contractor company on about seven in ten of the permits counted here, and on none before 2020. The contractor table counts permits filed per firm among those; it does not rate, rank or compare their work.
  • The file has a declared cost on only a few commercial permits, so we show no costs.
  • The file's completion date is empty. A final date here is the date the city last changed the permit's status, on permits whose status is Complete. A permit with any other status (Active or Stopped) counts as open; the file has no expired status.
  • In mid-2025 the city renamed several permit types (for example 'Residential Building Permit Old' and 'Residential Modification Permit' became 'Residential Building Permit' and 'Residential Repair Replace'); both names are counted the same way.
  • A new house gets separate building, electrical, plumbing, mechanical and gas permits, so one project can count several times, once under each kind of work.

Counts are permits, not jobs: one job can need several permits. Nobody paid to be on this page and nobody can. Sources and definitions →

Cite this page

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 Chattanooga, TN", https://contractorrecords.com/chattanooga/plumbing-permits, data through September 2026, from the City of Chattanooga Land Development Office building-permit records.

Link to a table: By month · Season · Days to final · By ZIP code · Permit types · Most active contractors by permits filed.

Download the tables (CSV): Plumbing permits by month · Plumbing permits by calendar month (index) · Plumbing permits: days to final · Plumbing permits by ZIP code · Plumbing permits by permit type · Most active contractors by permits filed.

Common questions

  • How many plumbing permits does Chattanooga issue a year?About 2,036 a year in Chattanooga: 4,073 permits issued October 2024 through September 2026, 2,117 of them in the last 12 months.
  • How long does a plumbing permit take in Chattanooga?The usual one took 91 days from issue to the city's final inspection, and the middle half took 20 to 129 days (1,142 permits issued Oct 2024–Sep 2025 that reached a final). The wait to get the permit issued is not in this file.
  • When do people in Chattanooga file the most plumbing permits?August (121 against an average month of 100); November is the quietest (79). If you can choose, a quiet month at the permit counter can mean contractors have more room in their schedules.
  • Which ZIP code has the most plumbing permits in Chattanooga?37421, with 950 of the 4,073 (23%); then 37405 (502).