Interior remodel static cost scenario
Home Addition Cost in San Jose, CA
The modeled typical cost is $110,702, with a planning range of $77,492 to $178,231 for San Jose, CA.
Computed cost breakdown
| Line item | Arithmetic basis | Amount |
|---|---|---|
| Materials | 400 sq ft × indexed material rate | $51,568 |
| Labor | 400 sq ft × indexed labor rate × 1.34 | $52,535 |
| Permits | Baseline allowance | $3,800 |
| Disposal | 400 sq ft × disposal rate | $2,800 |
| Typical total | $110,702 | |
Low $77,492 · Typical $110,702 · High $178,231
Difference from the parent scenario
San Jose, CA uses a 1.34× labor factor, 33.7% above the national wage factor. The resulting total is 13.6% above the parent national total because materials and fixed allowances do not change.
Open the interactive home addition cost to change quality, scope, contingency, or ZIP.
San Jose, CA metro calculation record
San Jose, CA is Census CBSA 41940, ranked 36 among the 50 metros evaluated for this release, with a 2025 population estimate of 1,984,473. Its BLS wage factor changes the modeled labor line from $39,281 nationally to $52,535 here, a difference of $13,253. The complete project moves from $244 to $277 per sq ft after materials and fixed allowances remain unchanged.
Primary cost controls
- Room or project size
- Finish and material tier
- Layout and structural changes
- Trade coordination and access
Questions about this scenario
What is the modeled typical cost for San Jose, CA?
The static default is $110,702, with a planning range of $77,492 to $178,231 from the shared calculator record.
What changes from the national calculator?
Only labor uses the 1.34× metro wage factor. Materials, permits, disposal, baseline date, and index series remain tied to the parent model.
Is this a local contractor quote?
No. It is a static planning scenario generated from the public baseline store. Confirm site conditions, scope, code requirements, and price in written local proposals.