How Commercial Permitting Works in San Antonio and Bexar County

Short answer: inside San Antonio city limits, commercial permits run through Development Services and the BuildSA portal, with initial plan review of about 10 business days for minor plans and 18 calendar days for complex commercial plans. In unincorporated Bexar County, the process starts with Bexar County Public Works and goes through the Fire Marshal's Office.

Most schedule surprises on a commercial job in San Antonio show up before anyone breaks ground. The permit path decides when you can start, so we map it during preconstruction, before we give an owner a completion date. Here is how it works, based on the city's and county's own published guidance.

Step 1: Confirm Jurisdiction And Zoning

First, figure out who issues the permit. A site inside San Antonio city limits is permitted by the City's Development Services Department. A site in unincorporated Bexar County is not. Suburban cities such as New Braunfels, Schertz, Boerne, and Seguin run their own building departments.

Inside the city, zoning comes before everything else: "A permit will not be issued without proper zoning" (City of San Antonio Commercial Project Guide). The city's One Stop Map shows a property's zoning, and the Development Services Call Center at 210-207-1111 can help confirm whether a use is allowed (City of San Antonio, Getting Started).

The City's 10 Steps To A Commercial Building Permit

The City of San Antonio's Commercial Project Application and Guide lays out the process in ten steps:

1. Get a legal description printout and a verified address through DSD Addressing.
2. Confirm the property is properly zoned.
3. Confirm the property is platted or platting is in process, or get a Certificate of Determination that platting is not required.
4. Prepare construction documents that comply with all applicable codes.
5. Complete related forms, such as drainage forms or reports, the TIA worksheet, tree affidavit, and the TAS accessibility (AB) number.
6. Submit through the online commercial project application with PDFs of all plans and reports.
7. Pay plan review fees, which are provided during intake.
8. Respond to plan reviewer comments through the BuildSA plan room.
9. Pay building permit fees once plan review is complete.
10. Download the approved plans from BuildSA for construction.

How Long Plan Review Takes

Review type	Initial review time (City of San Antonio)
Minor plans	About 10 business days
Complex commercial plans	About 18 calendar days

Those figures come from Development Services' FAQ. They cover the first review only; each round of comments and resubmittal adds time. The city also states that permits expire after 180 days without proof of progress, such as passed inspections.

Ways To Start Sooner

The city publishes several expediting options:

• Phased permitting. Permit the job in phases, such as grading and tree clearing, site work, foundations, building shell, and first-time interior finish-out. The city lists no extra fee for this.
• Partial or conditional permits. Construction can begin before the building permit is issued if no critical life-safety issues are found at initial review. This is entirely at the applicant's and owner's risk.
• After-hours plan review. Offered first come, first served, subject to staff availability, at $100 per hour per reviewer.

For metal buildings and warehouses, phased permitting is often the most useful: site work and foundations can move while the building package is still in review.

Trade Permits And Fire Review

Mechanical, electrical, plumbing, and flatwork permits are separate trade permits linked to the parent building permit. During plan review, reviewers decide whether separate fire sprinkler or fire alarm permits are needed (City of San Antonio permit process).

Codes In Effect

The City of San Antonio adopted the 2024 International Code Council codes on January 30, 2025 (Codes and Ordinances). Design teams should confirm local amendments before finishing construction documents.

Unincorporated Bexar County Works Differently

Outside city limits, commercial projects start with authorization from Bexar County Public Works. After that, plans go to the Bexar County Fire Marshal's Office, submitted in person by appointment (Bexar County Permits and Applications). Ask early who will do inspections, because it affects scheduling.

How GRAMS Handles It

On every GRAMS project, the permit path is part of preconstruction: jurisdiction, zoning, platting status, review times, and phasing options are confirmed before we commit to a schedule. If you're planning a metal building, a commercial concrete scope, or an office finish-out, we'll map the permit path with the estimate.

This guide summarizes publicly posted City of San Antonio and Bexar County information as of October 27, 2026. Requirements change; confirm with the issuing office before submittal.

Quick Answers

How long does a commercial permit take in San Antonio?

City of San Antonio Development Services lists initial plan review times of about 10 business days for minor plans and 18 calendar days for complex commercial plans. Each resubmittal adds review time, so complete drawings matter.

What building codes does San Antonio use?

The City of San Antonio adopted the 2024 International Code Council codes on January 30, 2025.

Can construction start before the full permit is issued?

Sometimes. The city offers phased permitting, which lets a project permit phases such as grading, site work, foundations, building shell, and first-time interior finish-out separately, at no extra fee. Partial or conditional permits are also available at the owner's risk when no critical life-safety issues are found at initial review.

Who issues commercial permits outside San Antonio city limits in Bexar County?

For unincorporated Bexar County, applicants first obtain authorization from Bexar County Public Works, then submit commercial plans in person, by appointment, to the Bexar County Fire Marshal's Office.

How long is a San Antonio building permit valid?

The city states that permits expire after 180 days without proof of progress, such as passed inspections.