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How Much Does a Building Permit Cost in San Antonio?
✓ Fee schedule checked against city sources
Fee math from Development Services (DSD), not a national average
Source: Development Services (DSD)
Data last verified: September 27, 2026
San Antonio issues separate building, electrical, mechanical and plumbing permits. Work on an existing home is mostly flat or per item, such as $25 for a re-roof, $150 for general repairs and $160 for a deck or carport, and the City bills two 3% surcharges on every residential permit.
Permit Cost by Project
Pool$360.00
Residential Pool$360.00
Bathroom Remodel$328.60
Kitchen Remodel$328.60
Full Remodel$210.00
Deck / Patio$169.60
Carports Decks$160.00
Foundations$160.00
Residential Foundations$160.00
Siding Replacement$159.00
Window Replacement$159.00
General Repairs Windows Doors Siding$150.00
Plan Retrieval$100.00
Demolition$75.00
Residential Demolition$75.00
View full municipal schedule (11 more items)
HVAC Replacement$66.26
HVAC / Mechanical Permit$62.50
Electrical Panel$61.58
Water Heater$61.48
Electrical Permit$58.10
Plumbing Permit$58.00
Solar Panel Installation$56.45
EV Charger Installation$55.76
Mobile Home$50.00
Irrigation$50.00
Roof Replacement$26.50
Do You Need a Permit?
No: Paint, cosmetic updates, fixture swaps
Yes: Bathroom remodel ($328.60)
Yes: Kitchen remodel ($328.60)
Yes: Roof replacement ($26.50)
Yes: HVAC replacement ($66.26)
Yes: Water heater ($61.48)
Yes: Deck / patio ($169.60)
Yes: Window replacement ($159.00)
Yes: Electrical panel ($61.58)
Yes: Solar panels ($56.45)
Verified Permit Cost by Project Type
Pool
$360.00
Flat Fee
Residential Pool
$360.00
Flat Fee
Bathroom Remodel
$328.60
Electrical, Plumbing, Mechanical
Kitchen Remodel
$328.60
Electrical, Plumbing
Full Remodel
$210.00
Flat Fee
Deck / Patio
$169.60
Building
Carports Decks
$160.00
Flat Fee
Foundations
$160.00
Flat Fee
Compare these permit costs across U.S. cities
Two Types of Permits
San Antonio issues building permits for structural work and separate trade permits for plumbing, electrical, HVAC, and roofing. Most remodels need both kinds. See the full breakdown of which projects need a permit and which are exempt.
San Antonio Permit Cost Calculator
Choose a common project or enter a project value to estimate local permit fees from Development Services (DSD) data.
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San Antonio calculator ready. Select a project to update the local permit estimate.
Estimated permit fee
$26.50
Updates instantly when project type or valuation changes.
✓ Verified local fee schedule
✓ FY2026 Development Fee Schedule p.5 "Residential Re-roof Permit $25.00" + two 3% surcharges ($0.75 + $0.75) = $26.50, flat at any value. City records (BuildSA, Accela COSA, residential applications August-September 2026): every residential building and trade fee is billed with two separate 3% surcharge lines, e.g. $25.00 + $0.75 + $0.75 on 29 re-roof applications, $150.00 + $4.50 + $4.50, $160.00 + $4.80 + $4.80 (19 records), plumbing $57.00 + $1.71 + $1.71. The schedule prints the surcharge note in its Land Development section (p.27); the City charges it on residential permits. 29 of 32 re-roof applications paid exactly $26.50 (e.g. REP-MBR-APP26-35010192); the other 3, filed in one 08/31 batch, also carried a $10.00 processing line.
Local sourceBuilt from Development Services (DSD) fee data, not a national average.
Formula-backedValuation-based projects recalculate from the local fee formula.
Bookmark friendlyThe tool lives on this city page so citations and saved links stay stable.
San Antonio prices most small home jobs with flat fees from its FY2026 Development Services Fee Schedule, and the City's own records show two 3 percent surcharges on every residential building and trade permit. A re-roof is $25 plus surcharges, $26.50. Replacing windows or siding takes the $150 General Repairs permit, $159. A deck or carport is $169.60. A water heater swap is $61.48. An air conditioner replacement is $66.26, give or take a cent. A fence permit is $26.50 filed online, a kitchen or bath remodel $328.60, and rooftop solar $56.45.
San Antonio Permit Fee Structure
San Antonio does not scale most small residential permits with project cost. The FY2026 schedule prints flat lines: "Residential Re-roof Permit $25.00", "General Repairs - Window, Doors, Siding $150.00", "Carports and Decks $160.00", "Foundations $160.00", "Residential Swimming Pool Permit Fee $360.00", and "Residential - Demolition Permit $75.00" for taking down a structure. On top of each, the City bills two separate 3 percent surcharges: a $150 permit comes to $159.00 and a $25 re-roof to $26.50.
Trade permits on an existing home work the same way. Each starts with a $50 basic fee and adds a per-item charge, then the two surcharges. A water heater is $58 before surcharges, $61.48 after. A 200-amp panel upgrade is $61.58, and an EV charger circuit $55.76. The $10 administrative processing fee is waived when you file online.
Fences, remodels and solar. A fence permit is $25, $26.50 with the surcharges when filed online; the $10 processing fee applies only to applications not filed online. A kitchen or bath remodel is priced on the page 4 remodel table, not the $210 Full Remodel line: building $150, electrical $100 and plumbing $60 for up to 500 square feet, $328.60 with surcharges, and no plan review under 1,000 square feet. Rooftop solar takes one electrical permit, $56.45. An air conditioner replacement is $62.50 before surcharges, $66.26 after; each 3 percent surcharge falls on a half cent, so the billed total may be $66.24.
Our calculator uses the published lines. Where a figure is pending confirmation from the City, it says so instead of guessing.
Chuck's Take
"I see bids come through my office all the time without any permit line item. In San Antonio even a window job carries a $159 permit, and a remodel runs more. Add it to the bid or you're eating it yourself. Owners need to watch for that."
Leonard "Chuck" Thompson, LC Thompson Construction Co.
What Needs a Permit in San Antonio?
You need a permit in San Antonio to replace windows, replace siding, add or change door openings, build a deck or carport, replace a roof, or remodel a kitchen or bathroom. A new fence, or a fence repair covering more than 25 percent of its length, needs a fence permit.
Water heater swaps require a plumbing permit, $61.48 with surcharges. Electrical panel upgrades need an electrical permit, $61.58. Only state-licensed contractors can pull electrical, mechanical, and plumbing permits.
The city's No Permit Required list covers one-story sheds and playhouses up to 300 square feet, cabinets and countertops, carpet and wood or laminate flooring, painting, sheetrock repair, retaining walls under 4 feet, sidewalks and driveways inside your property line, swings and playground equipment, broken-glass window repair, replacing existing doors, and installing new siding over existing siding. Historic, Neighborhood Conservation, and Corridor districts can add design restrictions even for exempt work.
Penalties for Work Without a Permit in San Antonio
The FY2026 fee schedule does not print a general penalty for unpermitted work. The city's fence bulletin (IB 223) does: fences installed before a permit is issued are "subject to double permit penalty fees" and still have to meet code.
Stop work orders and reinspections add time and cost. Every re-inspection is $50 on the schedule.
Don't skip permits. The risk sits higher than the cost, especially on decks, bathrooms, and electrical jobs that affect safety.
How Long Is a Building Permit Good For in San Antonio?
A San Antonio residential permit is valid for 6 months from the date of issuance, per the city's Residential Repair and Fence permit applications. The Home Remodeling FAQ says it can be extended for another 6 months as long as construction is making progress.
Plan your timeline around that window. Nothing stalls a project faster than an expired permit.
Who Should Pull the Permit in San Antonio?
Contractors normally pull the permits in San Antonio. A homeowner can pull a building permit for their own home only by attesting that they will own and occupy or rent it for 12 months after the project is done (City Code 10-115(a)(1), as quoted on the permit applications). Electrical, mechanical, and plumbing permits go only to state-licensed contractors.
If a contractor asks you to pull the permit yourself that raises a red flag. It usually means they don't want their name on the paperwork. You inherit all the liability.
Have the contractor list the permits and their exact costs in your contract. Then make sure they actually pull them. This protects you.
Chuck's Take
"Never let a contractor talk you into pulling the permit yourself. I've seen too many guys do that then disappear. If they won't put their name on the permit in San Antonio I wouldn't hire them. Period."
Leonard "Chuck" Thompson, LC Thompson Construction Co.
Why San Antonio's Flat Fee System Matters
San Antonio stands out because the small residential jobs it prices carry flat fees. A $10,000 siding job and a $20,000 siding job both pay the $150 General Repairs permit, $159 with surcharges.
The fine print is the surcharge. The fee schedule prints a 3 percent Technological Improvement fee and a 3 percent Development Services fee in its Land Development section, and the City's own records show both charged on residential building and trade permits as two separate lines.
If your contractor's bid doesn't show separate line items for each permit, ask for them. The numbers should match the city's schedule plus the two surcharges.
Quick Reference · San Antonio Permit Requirements
| Homeowner Task | Permit? | Est. Cost |
|---|---|---|
| Paint interior / exterior | NO | Cosmetic |
| Replace flooring | NO | Cosmetic |
| Replace kitchen cabinets (same layout) | NO | Cosmetic |
| Swap a light fixture (same location) | NO | Cosmetic |
| Replace a water heater | YES | $61.48 Plumbing |
| Upgrade an electrical panel | YES | $61.58 Electrical |
| Remodel a bathroom | YES | $328.60 Electrical, Plumbing, Mechanical |
| Remodel a kitchen | YES | $328.60 Electrical, Plumbing |
| Replace / repair roof | YES | $26.50 Building |
| Build a deck or patio | YES | $169.60 Building |
| Build a fence (≤6 ft) | NO | Typically exempt |
| Install solar panels | YES | $56.45 Electrical |
| Replace HVAC system | YES | $66.26 Mechanical |
| Replace windows (new opening) | YES | $159.00 Building |
∗ Costs are verified for San Antonio, TX from published fee schedule. Always confirm with your local building department.
Internal Comparison · separate trade permits
Compare San Antonio Permit Fees With Related Cities
Use these source-linked city pages to compare San Antonio against other Texas markets and cities with similar permit fee structures.
Houston, TXSame-state Texas cityBathroom remodel permit package: $403.13 · +$74.53 vs San Antonio
Fort Worth, TXSame-state Texas cityBathroom remodel permit package: $525.95 · +$197.35 vs San Antonio
Austin, TXSame-state Texas cityBathroom remodel permit package: $540.47 · +$211.87 vs San Antonio
Dallas, TXSame-state Texas city
Las Vegas, NVAlso uses separate trade permitsBathroom remodel permit package: $346.00 · +$17.40 vs San Antonio
Des Moines, IAAlso uses separate trade permitsBathroom remodel permit package: $309.00 · -$19.60 vs San Antonio
Oklahoma City, OKAlso uses separate trade permitsBathroom remodel permit package: $308.50 · -$20.10 vs San Antonio
Chicago, ILCross-market benchmarkBathroom remodel permit package: $325.00 · -$3.60 vs San Antonio
Permit Guides
Permit Cost and Process Guides
Pricing a specific project in San Antonio? These guides cover what each permit runs and how the approval process actually works.
Building permit cost, every verified city ranked
How much does a building permit cost?
How long does a permit take to get?
When is a permit not required?
Deck permit cost
Roof replacement permit cost
HVAC permit cost
Kitchen remodel permit cost
Solar panel permit cost
EV charger permit cost
Do I need a permit to replace a water heater?
Do I need a permit for an electrical panel upgrade?
How to speed up a building permit
Getting an electrical permit online
What happens if you build without a permit
Before You Build
Permits are only part of the bill. See an interior painting cost breakdown from TheFatBook, the remodeling cost index built on this same dataset.
Frequently Asked · San Antonio
How much does a building permit cost in San Antonio?
It depends on the job. Window, door-opening, and siding work takes the $150 General Repairs permit and a deck or carport the $160 line; with the City's two 3 percent surcharges those are $159.00 and $169.60. A kitchen or bathroom remodel up to 500 square feet is $328.60.
Do I need a permit to replace a water heater in San Antonio?
Yes you do. A water heater replacement takes a plumbing permit: the $50 basic fee plus $8 for the water heater and vent, $58 in all. The $10 processing fee is waived when you file online.
Do I need a permit to build a deck in San Antonio?
Yes. The city's fee schedule prints "Carports and Decks $160.00", and the City adds two 3 percent surcharges, so the permit is $169.60.
How much is a plumbing permit in San Antonio?
On an existing home the plumbing permit is a $50 basic fee plus a charge for each item on the plumbing table. A water heater replacement is $58 before the City's two 3 percent surcharges, $61.48 after.
Why does San Antonio use flat fees instead of valuation based permits?
For small jobs on existing homes, the FY2026 schedule prints flat lines instead of a valuation formula: $150 for window, door and siding repairs, $160 for decks and carports, $360 for a residential pool, each plus two 3 percent surcharges. That keeps those permits predictable. Remodels are the exception we are still confirming with the city.
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