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September 2026 Building Permits

Official permit data from San Marcos — updated Mon, Wed & Fri from the county permitting office.

San Marcos, TX issued 250 building permits in September 2026, up 0% from the prior month. The most active zip code was 78666 with 229 permits. Irrigation / Single Family was the top permit type, making up 18% of all permits issued.

Permits issued
250
vs. prior month
0%
250 last month
Most active zip
78666
229 permits
Top permit type
Irrigation / Single Family
18% of total

Permit activity by zip code

Top 10 zip codes by permit volume — September 2026

78666
229
11106
1
11207
1
78656
1

Permits by type

September 2026 · San Marcos, TX

Irrigation / Single Family
44 (18%)
ROW Permit / Commercial
34 (14%)
New Residential / Single Family
32 (13%)
Plumbing / Single Family
15 (6%)
Mechanical / Multi-Family
14 (6%)
Mechanical / Single Family
13 (5%)
Sign / Commercial
10 (4%)
Electrical / Single Family
8 (3%)
Fire Sprinkler / Commercial
7 (3%)
New Commercial
6 (2%)
Special Event
5 (2%)
Tenant Finish Out / Commercial
5 (2%)
Foundation / Multi-Family
4 (2%)
Foundation / Single Family
4 (2%)
Addition / Single Family
3 (1%)
Deck/Patio / Single Family
3 (1%)
Fire Alarm / Commercial
3 (1%)
Special Event / Commercial
3 (1%)
Electrical / Commercial
2 (1%)
Fence / Single Family
2 (1%)
Mechanical / Commercial
2 (1%)
Plumbing / Multi-Family
2 (1%)
Site Prep. / Commercial
2 (1%)
Watershed Protection / Commercial
2 (1%)
Accessory Dwelling / Single Family
1 (0%)
City Project / Commercial
1 (0%)
Commercial Remodel / Commercial
1 (0%)
Driveway / Single Family
1 (0%)
Electrical / Multi-Family
1 (0%)
Fence / Multi-Family
1 (0%)
Fire / Commercial
1 (0%)
Fire Gate / Commercial
1 (0%)
Fire Hood
1 (0%)
Fire Hood / Commercial
1 (0%)
Fire Sprinkler
1 (0%)
Interior Demo / Commercial
1 (0%)
Irrigation / Commercial
1 (0%)
Job Trailer / Commercial
1 (0%)
Mechanical
1 (0%)
Mechanical / Duplex
1 (0%)
Mechanical / Manufactured Home
1 (0%)
Plumbing / Commercial
1 (0%)
Remodel / Commercial
1 (0%)
Remodel / Multi-Family
1 (0%)
Remodel / Single Family
1 (0%)
Road Closures / Commercial
1 (0%)
Sign / Multi-Family
1 (0%)
Single Family
1 (0%)
Watershed Protection
1 (0%)

Other months — San Marcos

November 2026October 2026August 2026
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