San Antonio Construction Permit Index, September 2026: 55.4
The City of San Antonio issued 43 construction permits of the types in Builtie's feed in September 2026, which puts the Builtie Construction Permit Index for San Antonio at 55.4 (its average month, January to September 2025 = 100), down 71.7% on September 2025 and down 53.3% on August 2026. San Antonio's feed carries three permit types only: new commercial buildings, carports and accessory buildings. It is not the City's full permit count, so read its index as those permit types alone.
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September 2026 at a glance
| Measure | September 2026 |
|---|---|
| Index (base = 100) | 55.4 |
| Permits issued | 43 |
| Change on August 2026 | -53.3% |
| Change on September 2025 | -71.7% |
| Base: average month | 78 |
| Three-month average | 102.7 |
| Three-month average, change on a year earlier | -15.2% |
The three months to September 2026 averaged 102.7, down 15.2% on the same three months a year earlier. Read the year-over-year change with care: September 2025 was a spike, 152 permits against a median month of 73; and September 2026 is well under the median month and may rise as late permits are added.
Average month, January to September 2025 = 100. Gaps are months below the publish rule. Permits read October 9, 2026.
Month by month
| Month | Permits issued | Index | Month over month | Year over year | Note |
|---|---|---|---|---|---|
| September 2026 | 43 | 55.4 | -53.3% | -71.7% | |
| August 2026 | 92 | 118.6 | -11.5% | +46.0% | |
| July 2026 | 104 | 134.1 | +96.2% | +55.2% | |
| June 2026 | 53 | 68.3 | -49.5% | +12.8% | |
| May 2026 | 105 | 135.4 | +118.8% | +18.0% | |
| April 2026 | 48 | 61.9 | -34.2% | -2.0% | |
| March 2026 | 73 | 94.1 | +35.2% | -13.1% | |
| February 2026 | 54 | 69.6 | -45.5% | 0.0% | |
| January 2026 | 99 | 127.7 | +17.9% | +6.5% | |
| December 2025 | 84 | 108.3 | -18.4% | n/a | |
| November 2025 | 103 | 132.8 | +63.5% | n/a | |
| October 2025 | 63 | 81.2 | -58.6% | n/a | |
| September 2025 | 152 | 196.0 | +141.3% | n/a | |
| August 2025 | 63 | 81.2 | -6.0% | n/a | |
| July 2025 | 67 | 86.4 | +42.6% | n/a | |
| June 2025 | 47 | 60.6 | -47.2% | n/a | |
| May 2025 | 89 | 114.8 | +81.6% | n/a | |
| April 2025 | 49 | 63.2 | -41.7% | n/a | |
| March 2025 | 84 | 108.3 | +55.6% | n/a | |
| February 2025 | 54 | 69.6 | -41.9% | n/a | |
| January 2025 | 93 | 119.9 | n/a | n/a |
The base is San Antonio's average month over January to September 2025, the months on record in the base year: 78 permits.
What was permitted
Permits Builtie could classify by building type and work, for September 2026 and for the twelve months to it. Permits with no building type, demolitions and unclassified work are counted in the index but not here.
| Building type and work | Permits, September 2026 | Share, September 2026 | Share, Oct 2025 to Sep 2026 |
|---|---|---|---|
| New Commercial Construction | 24 | 100% | 97% |
| Residential Renovation | 0 | 0% | 3% |
| New Residential Construction | 0 | 0% | 0% |
| New Institutional Construction | 0 | 0% | 0% |
How San Antonio compares
San Antonio is one of the 15 markets in the composite Builtie Construction Permit Index. Among the 17 markets indexed for September 2026, San Antonio ranks 17 of 17 on year-over-year change.
What the San Antonio data covers
The data is San Antonio's own building permits. Neighbouring cities issue their own permits and are not in this count. The permit names a contact person; Builtie resolves the company behind it before a project is shown. San Antonio's feed carries three permit types only: new commercial buildings, carports and accessory buildings. It is not the City's full permit count, so read its index as those permit types alone.
More on San Antonio: San Antonio construction permits by month; the September 2026 permit report; San Antonio construction leads by trade.
How to cite
Builtie Construction Permit Index, San Antonio, September 2026, builtie.com/san-antonio-construction-permit-index/.
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Frequently asked questions
What is the San Antonio construction permit index for September 2026?
55.4 (average month, January to September 2025 = 100), from 43 permits issued. Released October 15, 2026 by Builtie.
Is construction in San Antonio up or down?
By permits issued, September 2026 was down 71.7% on September 2025 and down 53.3% on August 2026. The three months to September 2026 averaged 102.7, down 15.2% on the same three months a year earlier. Read the year-over-year change with care: September 2025 was a spike, 152 permits against a median month of 73; and September 2026 is well under the median month and may rise as late permits are added.
How is the index calculated?
Permits issued in the month, divided by San Antonio's average month over January to September 2025, the months on record in the base year, times 100. A month counts only with 40 or more permits and at least half the market's median month.
Where does the data come from?
The City of San Antonio's own building permits, read by Builtie October 9, 2026. San Antonio's feed carries three permit types only: new commercial buildings, carports and accessory buildings. It is not the City's full permit count, so read its index as those permit types alone.
What does Builtie cost?
Starter is $79 per seat per month (CAD) for 20 projects; Growth is $99 for 50 projects and adds LinkedIn and email outreach. There is a 7-day free trial with 10 projects.