Chattanooga, TN · Updated 2026

How Much Does Room Addition Cost in Chattanooga, TN?

Average room addition costs in Chattanooga range from $7,702 to $10,420. Get a free, customized estimate below.

15% below national averageFree · No Signup Required

Room Addition Cost Breakdown — Chattanooga, TN

ItemUnitQtyUnit PriceTotal
Foundationsq ft200$12.75$2550.00
Framingsq ft200$10.20$2040.00
Roofingsq ft220$6.80$1496.00
Electrical & Plumbinglump sum1$2975.00$2975.00
Estimated Total$9,061.00

* Prices are estimates based on Chattanooga 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$2,550

Material line 2

Line total$2,040

Material line 3

Line total$1,496

Material line 4

Line total$2,975

Frequently Asked Questions — Room Addition in Chattanooga

How much does room addition cost in Chattanooga, TN?

The average cost for room addition in Chattanooga, TN ranges from $7,702 to $10,420, depending on project scope, materials, and labor rates. Chattanooga costs are below the national average, making it a more affordable market.

How do I get a free room addition estimate in Chattanooga?

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 Chattanooga?

Key factors include project size and complexity, material quality, labor rates in Chattanooga (TN), permit requirements, accessibility of the work area, and seasonal demand. Getting multiple estimates is recommended.