Home Addition Cost Estimator for San Diego, California

Make informed decisions about real estate in San Diego with our precise calculator tools.

Home Addition Details (USA)

Addition Cost Estimate

Total Estimate

$60,000

for 400 sq.ft — Bedroom

ComponentCost
Foundation$8,000
Framing$10,000
Exterior/Roofing$14,000
Interior Finishing$16,000
Labor$12,000
COST SPLITHover Slices
Foundation13%
Framing17%
Exterior/Roof23%
Interior27%
Labor20%

Sample Home Addition Cost Estimator for San Diego, California

Estimated cost for a standard 400 square foot home addition in San Diego, California.

Size400 sq. ft.
Cost per sq. ft.$200 - $350
Low-End Total$80,000
High-End Total$140,000

Adding 400 square feet usually ranges from $80,000 to $140,000 depending on finishes and structural requirements.

Frequently Asked Questions

How much does it cost to add a room in San Diego?

Costs depend on whether you are building a sunroom, a bedroom, or a second story. Use our Home Addition Cost Estimator to check local pricing for San Diego, California.