City Building Permits

San Marcos, TX Building Permit Guide

How to apply for a building permit in San Marcos, Texas. Permit authority, application steps, fees, and inspection requirements.

Texas Hays County Updated March 2026

Permit Authority

All properties within the incorporated City of San Marcos.

Department: City of San Marcos Permit Center / Planning and Development Services
Address: 630 E. Hopkins St., San Marcos, TX 78666
Phone: 512-805-2630
Website: https://sanmarcostx.gov/1076/Permit-Center-Inspections

Online Permit Portal

Open MGO Connect

Platform: MyGovernmentOnline • Account required: Yes • Submission: Online only

Additional resources:

Application Process

Submit permit application online through MGO Connect.
Upload construction plans and required documentation.
Pay application and plan-review fees.
City staff conducts plan review for Building, Planning, and Fire compliance.
Respond to any correction comments and resubmit revised documents if needed.
Obtain permit issuance upon approval.
Schedule and pass required inspections before project completion.
Obtain certificate of occupancy (where applicable).

Typical processing time: Varies by permit type; contact Permit Center for specific timelines.

Source: City of San Marcos Permit Center / Planning and Development Services

General Requirements

Building permits are required for residential, commercial, plumbing, site, subdivision, and zoning work within San Marcos city limits.

Required Documents

Completed permit application
Construction plans and site plan
Project scope information
Applicant/owner authorization

Building code: Building code adopted per San Marcos Development Code.

Work That Does NOT Require a Permit

Contact the City of San Marcos Permit Center / Planning and Development Services to confirm whether your project requires a permit before starting work.

Inspections

How to Schedule

MGO Connect portal (online)
512-805-2630 (phone)

Typical inspection sequence: City staff administers inspections for Building, Planning, and Fire compliance.

Additional Resources

Building code: Building code adopted per San Marcos Development Code.
Verify contractor license: TDLR License Lookup
San Marcos Development Code
License lookup guide: Texas Contractor License Requirements
Contract template: Texas Homeowner-Contractor Agreement
Texas hub: Texas Contractor License & Permit Hub

Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the City of San Marcos Permit Center / Planning and Development Services before applying.

Need help with your project?

Navigating permits in San Marcos can be complicated.

Jaspector connects you with local experts who can review your scope, verify your contractor, and help you understand what permits your project actually needs.

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Important: This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authority listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.

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