Phoenix, AZ · Updated 2026

How Much Does Room Addition Cost in Phoenix, AZ?

Average room addition costs in Phoenix range from $8,880 to $12,014. Get a free, customized estimate below.

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Room Addition Cost Breakdown — Phoenix, AZ

ItemUnitQtyUnit PriceTotal
Foundationsq ft200$14.70$2940.00
Framingsq ft200$11.76$2352.00
Roofingsq ft220$7.84$1724.80
Electrical & Plumbinglump sum1$3430.00$3430.00
Estimated Total$10,446.80

* Prices are estimates based on Phoenix market rates. Actual costs may vary based on project specifics.

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Labor line 1

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Material line 1

Line total$2,940

Material line 2

Line total$2,352

Material line 3

Line total$1,724.8

Material line 4

Line total$3,430

Frequently Asked Questions — Room Addition in Phoenix

How much does room addition cost in Phoenix, AZ?

The average cost for room addition in Phoenix, AZ ranges from $8,880 to $12,014, depending on project scope, materials, and labor rates. Phoenix costs are close to the national average.

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

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 Phoenix?

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