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Plumbing, Gas & Sewer Permit in San Antonio, Texas

Required for plumbing, gas, and sewer work. A homeowner may only pull a plumbing permit for an existing homestead where they will personally perform the work (per the Plumbing Homeowner Affidavit); all other plumbing work requires a licensed, City-registered plumbing trade contractor.

Reviewed 2026-09-06 · Source

When you need this permit

  • Proof of ownership
  • Homeowner self-permitting limited to an existing homestead where the owner personally performs the work (Plumbing Homeowner Affidavit required) Owner-builder
  • For new residential construction, must be linked to the parent building permit

Required documents

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Fee schedule

New residential construction, 501-1,000 sq ft
$119
New residential construction, 2,501-3,000 sq ft
$164
New residential construction, 6,501-7,000 sq ft
$342
New residential construction, Sewer (flat)
$64
New residential construction, Gas (flat)
$64
Commercial/other occupancy (Groups A,B,E,F,H,I,M,S,U), up to 1,000 sq ft
$100.00, plus $5.00 per additional 1,000 sq ft
Commercial (Groups R-1, R-2), up to 1,000 sq ft
$140.00, plus $7.00 per additional 1,000 sq ft
Commercial Gas, up to 5,000 sq ft
$80.00
Commercial Sewer, up to 5,000 sq ft
$100.00
After-hour Inspection Fee (per hour, 1-hour minimum)
$100.00
Water Treatment Contractor Annual State License Registration
$85.00

Review timeline

Plan review
Not published — contact the department

How long did your Plumbing, Gas & Sewer Permit permit actually take in San Antonio?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Rough-in plumbing inspection

  2. 2

    Final plumbing inspection

See the full San Antonio inspection guide — scheduling & re-inspection fees →

Tips

  • Plumbing not included in the standard trade-permit fees: irrigation and MRFPSS (Minor Repair for Fixture, Piping, Sewer, Slab); separate fees apply.
  • For a water-heater or A/C replacement, a licensed contractor may use the Limited Service Repair (LSR) process to do the work first and file the formal permit within 3 business days. Contractor

Frequently asked questions

San Antonio requires a plumbing, gas & sewer permit for: Proof of ownership; Homeowner self-permitting limited to an existing homestead where the owner personally performs the work (Plumbing Homeowner Affidavit required); For new residential construction, must be linked to the parent building permit. If your project isn't listed, confirm with Development Services Department (DSD), City of San Antonio at 210-207-1111 before starting work.

In San Antonio, the published New residential construction, 501-1,000 sq ft is: $119. Additional published fees: New residential construction, 2,501-3,000 sq ft — $164; New residential construction, 6,501-7,000 sq ft — $342; New residential construction, Sewer (flat) — $64; New residential construction, Gas (flat) — $64; Commercial/other occupancy (Groups A,B,E,F,H,I,M,S,U), up to 1,000 sq ft — $100.00, plus $5.00 per additional 1,000 sq ft; Commercial (Groups R-1, R-2), up to 1,000 sq ft — $140.00, plus $7.00 per additional 1,000 sq ft; Commercial Gas, up to 5,000 sq ft — $80.00; Commercial Sewer, up to 5,000 sq ft — $100.00; After-hour Inspection Fee (per hour, 1-hour minimum) — $100.00; Water Treatment Contractor Annual State License Registration — $85.00. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

San Antonio does not publish a plan-review timeline for this permit. Contact Development Services Department (DSD), City of San Antonio at 210-207-1111 for current turnaround.

You'll need: Plumbing, Gas and Sewer Permit Application; Plumbing Homeowner Affidavit. See the required-documents checklist on this page for details on each.

San Antonio requires 2 inspection(s) for a plumbing, gas & sewer permit, in order: Rough-in plumbing inspection, Final plumbing inspection. Schedule each through Development Services Department (DSD), City of San Antonio (210-207-1111).

Apply through Development Services Department (DSD), City of San Antonio at Cliff Morton Development and Business Services Center (One Stop), 1901 S. Alamo St., San Antonio, TX 78204. Phone: 210-207-1111. Office hours: Monday - Friday: 7:45 a.m. - 4:30 p.m.. Official information: https://www.sa.gov/Directory/Departments/DSD.

San Antonio, Texas has adopted: 2024 International Building Code (IBC) - International Code Council (ICC); adopted by San Antonio City Council effective January 30, 2025; 2024 International Residential Code (IRC) - ICC; 2024 International Existing Building Code (IEBC) - ICC; 2024 International Fire Code (IFC) - ICC; 2024 International Fuel Gas Code (IFGC) - ICC; 2024 International Mechanical Code (IMC) - ICC; 2024 International Plumbing Code (IPC) - ICC; 2024 International Swimming Pool and Spa Code (ISPSC) - ICC; 2024 National Electrical Code (NEC) - NFPA 70, adopted alongside the 2024 ICC code cycle; 2021 International Energy Conservation Code (IECC) - ICC; excluded from the 2024 adoption cycle and still in effect (per DSD Codes & Ordinances page as of the 2024 update); 2024 San Antonio Property Maintenance Code (SAPMC) - City of San Antonio local code. Local amendments apply — see the San Antonio overview page for the full list.

Sources & verification

Key facts verified against official sources. Last reviewed 2026-09-06.

Fee schedules

Department & other records

Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the San Antonio building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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Plumbing, Gas & Sewer Permit in other cities

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