← All reportsSan Marcos, TX · Monthly Report

September 2026 Building Permits

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

San Marcos, TX issued 137 building permits in September 2026, down 39% from the prior month. The most active zip code was 78666 with 119 permits. ROW Permit / Commercial was the top permit type, making up 23% of all permits issued.

Permits issued
137
vs. prior month
-39%
225 last month
Most active zip
78666
119 permits
Top permit type
ROW Permit / Commercial
23% of total

Permit activity by zip code

Top 10 zip codes by permit volume — September 2026

78666
119
11106
1
11207
1

Permits by type

September 2026 · San Marcos, TX

ROW Permit / Commercial
31 (23%)
New Residential / Single Family
15 (11%)
Irrigation / Single Family
12 (9%)
Mechanical / Single Family
10 (7%)
Plumbing / Single Family
9 (7%)
Sign / Commercial
9 (7%)
Mechanical / Multi-Family
7 (5%)
Electrical / Single Family
5 (4%)
Tenant Finish Out / Commercial
4 (3%)
Fire Sprinkler / Commercial
3 (2%)
Foundation / Multi-Family
3 (2%)
Special Event
3 (2%)
Special Event / Commercial
3 (2%)
Addition / Single Family
2 (1%)
Plumbing / Multi-Family
2 (1%)
Accessory Dwelling / Single Family
1 (1%)
City Project / Commercial
1 (1%)
Commercial Remodel / Commercial
1 (1%)
Electrical / Commercial
1 (1%)
Fence / Single Family
1 (1%)
Fire Gate / Commercial
1 (1%)
Fire Hood
1 (1%)
Interior Demo / Commercial
1 (1%)
Irrigation / Commercial
1 (1%)
Job Trailer / Commercial
1 (1%)
Mechanical
1 (1%)
Mechanical / Commercial
1 (1%)
Mechanical / Duplex
1 (1%)
Mechanical / Manufactured Home
1 (1%)
Remodel / Commercial
1 (1%)
Remodel / Single Family
1 (1%)
Sign / Multi-Family
1 (1%)
Single Family
1 (1%)
Watershed Protection
1 (1%)

Other months — San Marcos

August 2026July 2026June 2026
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