How Much Does Room Addition Cost in Houston, TX?
Average room addition costs in Houston range from $8,608 to $11,646. Get a free, customized estimate below.
Room Addition Cost Breakdown — Houston, TX
| Item | Unit | Qty | Unit Price | Total |
|---|---|---|---|---|
| Foundation | sq ft | 200 | $14.25 | $2850.00 |
| Framing | sq ft | 200 | $11.40 | $2280.00 |
| Roofing | sq ft | 220 | $7.60 | $1672.00 |
| Electrical & Plumbing | lump sum | 1 | $3325.00 | $3325.00 |
| Estimated Total | $10,127.00 | |||
* Prices are estimates based on Houston market rates. Actual costs may vary based on project specifics.
Estimate
Ref ID: EST-2026-F7VM
Date Issued
May 6, 2026
Client
Project Details
Site Address
Start Date
End Date
Scope of Work
Materials
| Material Specification | Units | Amount | Ext. Total | |
|---|---|---|---|---|
$ | $2,850 | |||
$ | $2,280 | |||
$ | $1,672 | |||
$ | $3,325 |
Labor
| Service Specification | Type | Hrs | Rate | Ext. Total | |
|---|---|---|---|---|---|
Craftsmanship Guarantee | $ | $600 |
Contractual Agreements & Conditions
Total
$10,727
Draft
Frequently Asked Questions — Room Addition in Houston
How much does room addition cost in Houston, TX?
The average cost for room addition in Houston, TX ranges from $8,608 to $11,646, depending on project scope, materials, and labor rates. Houston costs are close to the national average.
How do I get a free room addition estimate in Houston?
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 Houston?
Key factors include project size and complexity, material quality, labor rates in Houston (TX), permit requirements, accessibility of the work area, and seasonal demand. Getting multiple estimates is recommended.