How Much Does Room Addition Cost in San Antonio, TX?
Average room addition costs in San Antonio range from $8,155 to $11,033. Get a free, customized estimate below.
Room Addition Cost Breakdown — San Antonio, TX
| Item | Unit | Qty | Unit Price | Total |
|---|---|---|---|---|
| Foundation | sq ft | 200 | $13.50 | $2700.00 |
| Framing | sq ft | 200 | $10.80 | $2160.00 |
| Roofing | sq ft | 220 | $7.20 | $1584.00 |
| Electrical & Plumbing | lump sum | 1 | $3150.00 | $3150.00 |
| Estimated Total | $9,594.00 | |||
* Prices are estimates based on San Antonio market rates. Actual costs may vary based on project specifics.
Estimate
Ref ID: EST-2026-D6ZQ
Date Issued
May 6, 2026
Client
Project Details
Site Address
Start Date
End Date
Scope of Work
Materials
| Material Specification | Units | Amount | Ext. Total | |
|---|---|---|---|---|
$ | $2,700 | |||
$ | $2,160 | |||
$ | $1,584 | |||
$ | $3,150 |
Labor
| Service Specification | Type | Hrs | Rate | Ext. Total | |
|---|---|---|---|---|---|
Craftsmanship Guarantee | $ | $600 |
Contractual Agreements & Conditions
Total
$10,194
Draft
Frequently Asked Questions — Room Addition in San Antonio
How much does room addition cost in San Antonio, TX?
The average cost for room addition in San Antonio, TX ranges from $8,155 to $11,033, depending on project scope, materials, and labor rates. San Antonio costs are close to the national average.
How do I get a free room addition estimate in San Antonio?
Use Brixor's free online estimate generator above. Enter your project details, customize line items for your specific needs, and download a professional PDF estimate instantly. No signup or credit card required.
What factors affect room addition costs in San Antonio?
Key factors include project size and complexity, material quality, labor rates in San Antonio (TX), permit requirements, accessibility of the work area, and seasonal demand. Getting multiple estimates is recommended.