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March 2026 Building Permits

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

San Marcos, TX issued 234 building permits in March 2026, up 4% from the prior month. The most active zip code was 78666 with 231 permits. Irrigation / Single Family was the top permit type, making up 24% of all permits issued.

Permits issued
234
vs. prior month
+4%
225 last month
Most active zip
78666
231 permits
Top permit type
Irrigation / Single Family
24% of total

Permit activity by zip code

Top 10 zip codes by permit volume — March 2026

78666
231
78656
1

Permits by type

March 2026 · San Marcos, TX

Irrigation / Single Family
57 (24%)
New Residential / Single Family
40 (17%)
Plumbing / Single Family
15 (6%)
Foundation / Single Family
9 (4%)
Mechanical / Single Family
9 (4%)
Sign / Commercial
8 (3%)
Electrical / Commercial
7 (3%)
Electrical / Single Family
6 (3%)
ROW Permit / Commercial
6 (3%)
Deck/Patio / Single Family
5 (2%)
Fire Alarm / Commercial
5 (2%)
Fire Sprinkler / Commercial
4 (2%)
Sign
4 (2%)
Site Prep. / Commercial
4 (2%)
Tenant Finish Out / Commercial
4 (2%)
Plumbing / Commercial
3 (1%)
Pool / Single Family
3 (1%)
Remodel / Single Family
3 (1%)
Watershed Protection / Commercial
3 (1%)
Fence / Commercial
2 (1%)
Fence / Single Family
2 (1%)
Fire Alarm
2 (1%)
Irrigation
2 (1%)
Irrigation / Commercial
2 (1%)
Mechanical / Multi-Family
2 (1%)
Pole Contact / Commercial
2 (1%)
Remodel / Commercial
2 (1%)
Remodel / Multi-Family
2 (1%)
Shell / Commercial
2 (1%)
Accessory Dwelling / Single Family
1 (0%)
City Project / Commercial
1 (0%)
Driveway
1 (0%)
Electrical
1 (0%)
Electrical / Duplex
1 (0%)
Fence / Multi-Family
1 (0%)
Fire Gate
1 (0%)
Fire Gate / Commercial
1 (0%)
Fire Hood / Commercial
1 (0%)
Fire Sprinkler
1 (0%)
Fire Sprinkler / Institutional
1 (0%)
Fire System
1 (0%)
Foundation / Multi-Family
1 (0%)
New / Commercial
1 (0%)
New / Single Family
1 (0%)
Residential Remodel / Single Family
1 (0%)
Shell
1 (0%)
Special Event / Commercial
1 (0%)
Temporary / Commercial
1 (0%)

Other months — San Marcos

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