Permit Required? Sometimes Required
Typical Fee Range $0–$210 Exempt if 300 sq ft or less and no utilities; over 300 sq ft requires a building permit.
Fee Method Valuation-based
Apply Online Apply at City of San Antonio Development Services Department →

What's Required in San Antonio

  • No permit required for detached accessory structures 300 sq ft or less with no utilities.
  • Shed must be non-habitable (no sleeping, living, or office space).
  • Must meet side and rear yard setbacks (typically 3–5 feet; check specific zoning).
  • Electrical or plumbing installations always require trade permits regardless of shed size.
  • Sheds over 300 sq ft must meet IBC/IRC structural requirements.
  • Cannot be placed in a utility easement without city/utility permission.

What Size Shed Needs a Permit in San Antonio

Whether you need a building permit for a shed in San Antonio usually comes down to size. In San Antonio, the cutoff is clear: detached sheds of 300 square feet or less don’t need a building permit, while anything larger does. A popular 10x12 shed (120 sq ft) comes in under the limit, so it typically doesn’t need a building permit. Larger sheds, and any shed with electrical, plumbing, or a permanent foundation, almost always need a permit regardless of footprint.

Building a Shed Without a Permit in San Antonio

Even when a shed is small enough to skip a building permit in San Antonio, “no permit” doesn’t mean “no rules.” A permit-exempt shed generally must stay at or under the 300-square-foot limit, sit on a non-permanent base (sheds on skids or a gravel pad are treated more leniently than those on a poured foundation), and have no electrical or plumbing run to it. Crucially, zoning setbacks still apply — your shed usually has to sit a minimum distance from property lines and other structures, and that holds even for a permit-free shed. Confirm both the size exemption and the setback distance with the City of San Antonio Development Services Department before you build.

How to Get a Shed Permit in San Antonio

1

Step 1: Size Check

Confirm your shed is under the 300 sq ft exemption threshold.

2

Step 2: Site Selection

Check your survey for easements and setback rules.

3

Step 3: Portal Submission

If over 300 sq ft, apply for an 'Accessory Structure' permit on BuildSA.

4

Step 4: Fee Payment

Pay the permit fee (estimated $210 base for non-MEP buildings).

5

Step 5: Inspection

If permitted, schedule a final structural inspection.

Frequently Asked Questions

No, if it is 300 sq ft or smaller and has no utilities.
If required, the inspection fee is approximately $210.
In the rear or side yard, avoiding easements and maintaining setbacks.
In San Antonio, sheds of 300 square feet or less can be built without a building permit; anything larger needs one. The exemption usually also requires no permanent foundation and no electrical or plumbing, and zoning setbacks from property lines still apply even without a permit.
Often not, if it’s also within San Antonio’s 300 sq ft limit and has no utilities — many jurisdictions treat a shed on skids or a gravel pad as movable rather than a permanent building. A poured foundation or any electrical/plumbing typically triggers a permit. Confirm with the City of San Antonio Development Services Department; zoning setbacks apply either way.