← San Marcos permit guide
Deck Permit Requirements in San Marcos, TX
Based on City of San Marcos published sources. Confirm with Planning & Development Services before you build.
Do you need a permit?
Yes.
What to know
- Decks are listed as projects requiring a building permit.
- Applications must include a description of the project and construction value.
- Work must comply with the city's adopted building codes.
Typical documents
- Building Permit Application
- Site plan showing deck dimensions
- Construction plans
Who can apply & how
- Planning & Development Services handles all building and site permits.
- Apply online through the MGO Connect portal (mgoconnect.org).
- A Permit Determination Form can be submitted if you are unsure of requirements.
Practical tips
- Check if your property is in a floodplain as this requires a separate permit.
- Include the square footage of the deck in the application.
Contact & sources
630 East Hopkins, San Marcos, Texas 78666 · 512-805-2630 · permitinfo@sanmarcostx.gov
Only applies inside San Marcos city limits. Neighboring cities and unincorporated Hays County have their own rules.
