Houston, TX · Updated 2026

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.

Near national averageFree · No Signup Required

Room Addition Cost Breakdown — Houston, TX

ItemUnitQtyUnit PriceTotal
Foundationsq ft200$14.25$2850.00
Framingsq ft200$11.40$2280.00
Roofingsq ft220$7.60$1672.00
Electrical & Plumbinglump sum1$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.

Public manual estimate

Same editor. Free PDF.

This public version mirrors the logged-in Manual Estimate builder so the experience stays consistent. Fill it in, size the logo, and download the clean PDF.

Business profile

Logo and company details

PDF preview follows slider

Client + project

Who this estimate is for

Scope

Scope of work

Labor

Add labor

Labor line 1

Line total$600

Materials

Add materials

Material line 1

Line total$2,850

Material line 2

Line total$2,280

Material line 3

Line total$1,672

Material line 4

Line total$3,325

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.

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.