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Building permits in 37421, Chattanooga

Data through September 2026 · updated 18 Oct 2026

2,864 building permits were issued in ZIP code 37421 by the City of Chattanooga Land Development Office, October 2024 through September 2026: 21% of the 13,353 in Chattanooga, the busiest ZIP code. Plumbing permits lead with 950. 1,493 permits in the last 12 months (Oct 2025–Sep 2026), 9% more than the 1,371 in the 12 months before. Permits from a city that runs its own permit office are not counted.

2,864permits in 37421
1,493last 12 months
100%for homes
94days, usual issue to final
Sep 2026records through

Permits in 37421 by kind of work

Share here is the part of the 2,864 permits in 37421; citywide is the same for all of Chattanooga.

Kind of workPermitsShare hereCitywide
Plumbing95033%31%
Electrical76527%26%
HVAC56120%19%
New homes35112%10%
Remodels & repairs1104%8%
Additions472%2%
Garages, sheds & shade structures321%1%
Demolition321%2%
Pools & spas7under 1%under 1%
Solar5under 1%under 1%
Fences & walls4under 1%under 1%

Download this table (CSV)

Permits in 37421 by year

Permits issued in each calendar year of the window.

YearMonthsPermitsPer year
2024 (from October)33391,356
2025121,3191,319
2026 (through September)91,2061,608

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How permits in 37421 finish

Permits issued Oct 2024–Sep 2025, at least 12 months before the file ends.

Measure37421Citywide
Permits issued Oct 2024–Sep 20251,3716,422
Finished59.3%50.0%
Usual days, issue to final9492

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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 We count permits issued October 2024 through September 2026; denied and withdrawn permits are left out.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, "Building permits in 37421, Chattanooga", https://contractorrecords.com/chattanooga/zip/37421, data through September 2026, from the City of Chattanooga Land Development Office building-permit records.

Link to a table: By kind of work · By year · How permits finish.

Download the tables (CSV): Permits in 37421 by kind of work · Permits in 37421 by year · Permits in 37421: finished and days to final.

Common questions

  • How many building permits were issued in 37421?2,864 permits issued by the city in ZIP code 37421, October 2024 through September 2026: 950 plumbing, 765 electrical, 561 HVAC. 1,493 were in the last 12 months.
  • What is built most in 37421?Plumbing: 950 of the 2,864 permits (33%), against 31% citywide.
  • How long does a permit take in 37421?The usual permit issued here Oct 2024–Sep 2025 took 94 days from issue to final (813 permits with a final date), against 92 days citywide.
  • Who did the work in 37421?The city's file names contractors, but only on about seven in ten of these permits, and we have not matched the names to state license records, so we only count permits per firm and don't rate or rank them, so we don't list them by ZIP code. Ask a contractor for the permit numbers of past jobs and check them with the city.