Building Permit Fees in San Antonio, TX (2026)

City of San Antonio DSD FY 2027 Development Fee Schedule, revised September 2026 (source retrieved Oct 7, 2026). The official typical path is a covering-only reroof on the Residential Repair Existing Re-Roof Fee line in the Flat Fees for Miscellaneous Residential Projects table on PDF page 6, which is $28.75.

This is a flat fee, and a permit is required on this path. The schedule says that unless noted, all fees are subject to a 4% Technological Improvement surcharge and a 4% Development Services surcharge, and the re-roof line is not noted as exempt.

4% of $28.75 is $1.15, so the two surcharges add $1.15 + $1.15. $28.75 + $1.15 + $1.15 = $31.05. The low, typical, and high fees are $31.05, $31.05, and $31.05.

The official typical project value is $12,000, and listed assumed valuations are $8,000 low, $12,000 typical, and $22,000 high. Valuation is not an input on this flat path, so those amounts do not change the $31.05 at any band, and the high is not added on top of the typical.

Structural sheathing or framing work uses the section 10-38 valuation building-permit table instead and is not the official covering-only path. The $11.50 convenience fee for staff-processed applications and the 3% card fee are not added.

Before October 2026 this row used the FY2026 re-roof line of $25 with no surcharge. This note does not invent a fee beyond the official $31.05 total.

City of San Antonio DSD FY 2027 Development Fee Schedule, revised September 2026 (source retrieved Oct 7, 2026). The official typical path is a 3-ton like-for-like furnace plus AC on the existing-residential mechanical inspection fees on PDF page 15.

The Mechanical Permit Base Fee is $57.50, a gas furnace is $11.04 each, and a condensing unit, heat pump, air handler, or replacement device is $7.19 each. Each line is fixed by the schedule, and a permit is required on this path.

The schedule says that unless noted, all fees are subject to a 4% Technological Improvement surcharge and a 4% Development Services surcharge, and these lines are not noted as exempt, so both are added.

• Low $5,000, one replacement device: $57.50 + $7.19 = $64.69; 4% is $2.59, so $64.69 + $2.59 + $2.59 = $69.87.
• Typical $7,500, furnace plus condensing unit: $57.50 + $11.04 + $7.19 = $75.73; 4% is $3.03, so $75.73 + $3.03 + $3.03 = $81.79.
• High $16,000 adds an air handler: $75.73 + $7.19 = $82.92; 4% is $3.32, so $82.92 + $3.32 + $3.32 = $89.56.

The low, typical, and high fees are $69.87, $81.79, and $89.56, and the high is not a second fee stacked on the typical. The official typical project value is $7,500; valuation is not an input on these inspection fees.

The $88.55 existing-residential new-system line applies only when there is no pre-existing central unit and is not this change-out path. A separate electrical permit applies if a new circuit is needed and is not counted.

Before October 2026 this row used FY2026 lines of $50, $9.60, and $6.25 with no surcharge. This note does not invent a fee beyond the official $69.87, $81.79, and $89.56 totals.

City of San Antonio DSD FY 2027 Development Fee Schedule, revised September 2026 (source retrieved Oct 7, 2026). The fee comes from the Flat Fees for Miscellaneous Residential Projects table on PDF page 6, where the Carport Covers and Decks Fee is $184.00.

This is a flat fee, and a permit is required for the typical 16×20 attached deck on this row. The schedule disclaimer says that unless noted, all fees are subject to a 4% Technological Improvement surcharge and a 4% Development Services surcharge.

The deck line is not noted as exempt, so both surcharges are added. 4% of $184.00 is $7.36 for the technology surcharge, and 4% of $184.00 is another $7.36 for the development services surcharge. $184.00 + $7.36 + $7.36 = $198.72.

The low, typical, and high fees are $198.72, $198.72, and $198.72. The official typical project value is $12,000, and listed assumed valuations are $8,000 low, $12,000 typical, and $19,200 high.

Valuation is not an input on this flat line, so those amounts do not change the fee. Deck size is not an input either: the cost-by-size rows of 200, 320, and 400 sf all carry the same $198.72.

Walk the three bands.

• Low $8,000 at 200 sf: $184.00 + $7.36 + $7.36 = $198.72.
• Typical $12,000 at 320 sf (16×20): $184.00 + $7.36 + $7.36 = $198.72.
• High $19,200 at 400 sf: $184.00 + $7.36 + $7.36 = $198.72.

The high is the same total as the typical and is not added on top of it. The schedule also has a square-foot table for accessory structures under 1,000 sf, with a $172.50 building permit at 0 to 500 sf; this row uses the named $184.00 deck line, the higher and more specific reading.

A small deck that is 200 sf or less, 30 inches or less above grade, not attached, and not serving the exit door does not need a building permit. The $11.50 convenience fee for staff-processed applications and the 3% card fee are not added.

Before October 2026 this row used the FY2026 deck line of $160 with no surcharge. This note does not invent a fee beyond the official $198.72 total.

City of San Antonio DSD FY 2027 Development Fee Schedule, revised September 2026 (source retrieved Oct 7, 2026). The building line is the Residential Repair Existing Full Remodel Fee of $241.50 on PDF page 6.

Trade work uses the existing-residential permit base fees: electrical $57.50 (page 12), plumbing $57.50 (page 16), and mechanical $57.50 (page 15). Each line is a flat fee, and a permit is required on the official typical kitchen path.

The schedule says that unless noted, all fees are subject to a 4% Technological Improvement surcharge and a 4% Development Services surcharge, and none of these lines is noted as exempt, so both are added on each band.

• Low $15,000, building plus one trade: $241.50 + $57.50 = $299.00; 4% is $11.96, so $299.00 + $11.96 + $11.96 = $322.92.
• Typical $35,000, building plus electrical and plumbing: $241.50 + $57.50 + $57.50 = $356.50; 4% is $14.26, so $356.50 + $14.26 + $14.26 = $385.02.
• High $75,000 adds a mechanical permit, for example a range hood: $356.50 + $57.50 = $414.00; 4% is $16.56, so $414.00 + $16.56 + $16.56 = $447.12.

The low, typical, and high fees are $322.92, $385.02, and $447.12, and the high is not added on top of the typical. The official typical project value is $35,000; the valuations do not change these flat lines.

Per-item trade lines such as $8.05 per plumbing fixture and $0.18 per general purpose outlet are extra and are not counted. The schedule also has a square-foot remodel table with a $172.50 building permit at 0 to 500 sf; this row keeps the higher named Full Remodel line.

Before October 2026 this row used FY2026 lines of $210 and $50 per trade with no surcharge. This note does not invent a fee beyond the official $322.92, $385.02, and $447.12 totals.