How Much Does Room Addition Cost in Santa Ana, CA?
Average room addition costs in Santa Ana range from $11,779 to $15,937. Get a free, customized estimate below.
Room Addition Cost Breakdown — Santa Ana, CA
| Item | Unit | Qty | Unit Price | Total |
|---|---|---|---|---|
| Foundation | sq ft | 200 | $19.50 | $3900.00 |
| Framing | sq ft | 200 | $15.60 | $3120.00 |
| Roofing | sq ft | 220 | $10.40 | $2288.00 |
| Electrical & Plumbing | lump sum | 1 | $4550.00 | $4550.00 |
| Estimated Total | $13,858.00 | |||
* Prices are estimates based on Santa Ana market rates. Actual costs may vary based on project specifics.
Estimate
Ref ID: EST-2026-HACP
Date Issued
May 6, 2026
Client
Project Details
Site Address
Start Date
End Date
Scope of Work
Materials
| Material Specification | Units | Amount | Ext. Total | |
|---|---|---|---|---|
$ | $3,900 | |||
$ | $3,120 | |||
$ | $2,288 | |||
$ | $4,550 |
Labor
| Service Specification | Type | Hrs | Rate | Ext. Total | |
|---|---|---|---|---|---|
Craftsmanship Guarantee | $ | $600 |
Contractual Agreements & Conditions
Total
$14,458
Draft
Frequently Asked Questions — Room Addition in Santa Ana
How much does room addition cost in Santa Ana, CA?
The average cost for room addition in Santa Ana, CA ranges from $11,779 to $15,937, depending on project scope, materials, and labor rates. Santa Ana costs are above the national average due to higher labor and material costs in the region.
How do I get a free room addition estimate in Santa Ana?
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 Santa Ana?
Key factors include project size and complexity, material quality, labor rates in Santa Ana (CA), permit requirements, accessibility of the work area, and seasonal demand. Getting multiple estimates is recommended.