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Home addition permits in the City of San Antonio, TX

Data through September 2026 · updated 18 Oct 2026

1,088 home addition permits were issued in the City of San Antonio, October 2024 through September 2026: about 544 a year and under 1% of all permits. 494 home addition permits in the last 12 months (Oct 2025–Sep 2026), 17% fewer than the 594 in the 12 months before. The busiest month is April. 78210 has the most, 93.

1,088permits issued
494last 12 months
Aprbusiest month
Sep 2026records through

Home addition permits by month

Permits issued each month, October 2024 through September 2026.

Oct 2024: 57Oct2024Nov 2024: 45Dec 2024: 38Jan 2025: 44Jan2025Feb 2025: 44Mar 2025: 44Apr 2025: 65May 2025: 47Jun 2025: 50Jul 2025: 51JulAug 2025: 51Sep 2025: 58Oct 2025: 48Nov 2025: 38Dec 2025: 34Jan 2026: 34Jan2026Feb 2026: 45Mar 2026: 50Apr 2026: 45May 2026: 41Jun 2026: 33Jul 2026: 41JulAug 2026: 46Sep 2026: 39
The same numbers as a table
MonthPermits
Oct 202457
Nov 202445
Dec 202438
Jan 202544
Feb 202544
Mar 202544
Apr 202565
May 202547
Jun 202550
Jul 202551
Aug 202551
Sep 202558
Oct 202548
Nov 202538
Dec 202534
Jan 202634
Feb 202645
Mar 202650
Apr 202645
May 202641
Jun 202633
Jul 202641
Aug 202646
Sep 202639

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When home addition permits are filed

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

January: 86 (100 = an average month)February: 98 (100 = an average month)March: 104 (100 = an average month)April: 121 (100 = an average month)121May: 97 (100 = an average month)June: 92 (100 = an average month)July: 101 (100 = an average month)August: 107 (100 = an average month)September: 107 (100 = an average month)October: 116 (100 = an average month)November: 92 (100 = an average month)December: 79 (100 = an average month)JFMAMJJASOND
The same numbers as a table
MonthIndex
January86
February98
March104
April121
May97
June92
July101
August107
September107
October116
November92
December79

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ZIP codes with the most home addition permits

Counted at the property's ZIP code. Share is the part of the city's 1,088 home addition permits.

ZIP codePermitsShare
78210939%
78201797%
78202787%
78209737%
78212565%
78228505%
78237363%
78204353%
78207323%
78223313%

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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
Home Addition Permit93786%
Res Accessory-Addition Permit15114%

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Nearby permit data

Home addition permits for other places in Austin and San Antonio. Each permit office keeps its own file, so the numbers are not added together.

How these numbers are made

Source: City of San Antonio Open Data, Building Permits (Permits Issued 2020-2024 and Permits Issued), read 18 Oct 2026. We count permits issued October 2024 through September 2026; denied and withdrawn permits are left out. San Antonio's published permit file has no status and no final inspection date, so no finished share is shown.

Building, trade, sign and demolition permits the City of San Antonio Development Services Department issues inside the city limits. Unincorporated Bexar County and the separate cities inside or next to San Antonio (Alamo Heights, Leon Valley, Castle Hills, Converse, Live Oak, Schertz and others) run their own permit offices and are not in this file. Garage sale, tree, temporary sign and banner, sidewalk, street and sitework permits in the same file are not counted.

  • The city's file lists a primary contact for each permit, often a person and not the contractor of record, so we show no contractor lists, rankings or firm pages for San Antonio.
  • The file has no permit status or final inspection date, so it can't show which permits were finished or how long a permit takes.
  • A declared value is filled on only about 3% of permits, almost all commercial, so we show no costs.
  • A commercial building permit lists its electrical, plumbing and mechanical work under the same permit number; each number counts once, as the building permit.
  • Homes are the permit types the city files as residential: new homes, manufactured homes, residential repairs, additions, accessory dwellings, patios, carports, decks, sheds, fences and pools. Re-roof, foundation repair, solar and trade permits don't say whether the building is a home and count as other.
  • Lawn irrigation (sprinkler) permits are filed as plumbing permits by the city; we count them under other, not plumbing.
  • The ZIP code is read from the permit's address.

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, "Home addition permits in the City of San Antonio, TX", https://contractorrecords.com/san-antonio/addition-permits, data through September 2026, from the City of San Antonio Development Services Department building-permit records.

Link to a table: By month · Season · By ZIP code · Permit types.

Download the tables (CSV): Additions permits by month · Additions permits by calendar month (index) · Additions permits by ZIP code · Additions permits by permit type.

Common questions

  • How many home addition permits does San Antonio issue a year?About 544 a year in the City of San Antonio: 1,088 permits issued October 2024 through September 2026, 494 of them in the last 12 months.
  • When do people in San Antonio file the most home addition permits?April (121 against an average month of 100); December 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 home addition permits in San Antonio?78210, with 93 of the 1,088 (9%); then 78201 (79).