ADU Builders & Contractors in San Antonio, FL
Building an ADU in San Antonio? You'll find 1 licensed contractors in the area, ready to help. San Antonio's ADU market continues to grow as homeowners invest in additional living space, rental income, and multi-generational housing.
📊 ADU Quick Facts for San Antonio
Avg. Cost/sqft
$143-$293
Permit Timeline
30-90 weeks
Max Size
1000 sqft
Setbacks
5ft sides
Top 1 ADU Contractors in San Antonio
🏗️
💰 How Much Does an ADU Cost in San Antonio?
Garage Conversion
$36,500 - $96,500
Converting existing garage to living space
Detached ADU
$93,000 - $243,000
New standalone unit (600-1,200 sqft)
Permit & Fees
$597 - $3,097
Plan check, permits, utility connections
* Costs vary based on size, finishes, site conditions, and contractor. Get quotes from multiple San Antonio contractors to compare pricing.
❓ Frequently Asked Questions About ADUs in San Antonio
How much does it cost to build an ADU in San Antonio?▼
The average cost to build an ADU in San Antonio ranges from $93,000 to $243,000, or approximately $143 to $293 per square foot. Garage conversions typically cost $36,500 to $96,500.
How long does it take to get an ADU permit in San Antonio?▼
The ADU permit process in San Antonio typically takes 30 to 90 weeks. California law requires cities to approve or deny ADU permits within 60 days of receiving a complete application.
What are the ADU size limits in San Antonio?▼
In San Antonio, detached ADUs can be up to 1000 square feet. Attached ADUs are limited to 50% of the primary dwelling or 1,200 sqft, whichever is less. Junior ADUs (JADUs) are limited to 500 sqft and must be within the existing home.
What is the setback requirement for ADUs in San Antonio?▼
San Antonio requires 5-foot setbacks from side property lines and 5-foot setbacks from rear property lines for new ADU construction. Converted structures (like existing garages) may maintain their current setbacks.
Do I need to provide parking for my ADU in San Antonio?▼
No parking is required for ADUs in San Antonio if your property is within half a mile of public transit, in a historic district, part of an existing multi-family building, or if the ADU is a garage conversion. Otherwise, one space may be required.
Also See ADU Contractors In
Ready to Build Your ADU in San Antonio?
Get free quotes from top-rated local contractors
Find Contractors Now