Compare home addition estimates in San Diego, CA
Free home addition quotes in San Diego, California. Typical range $53,100 – $165,200.
Low
$53,100
Average
$100,300
High
$165,200
San Diego crews quote about $175 – $530 per square foot.
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What drives home addition prices in San Diego
Local labor, permitting and climate move San Diego prices away from the national average.
Labor market
San Diego contractors price near the California average, with coastal ZIPs at a premium.
Permits
City of San Diego permits apply to most exterior and structural work; coastal overlay adds review time.
Climate
Marine air corrodes fasteners and finishes near the coast, so upgraded materials are common.
How to compare San Diego quotes
- Collect three written quotes. Anything under $39,825 usually has scope missing.
- Compare line items — materials, labor, permits, disposal — not just the total.
- Confirm license, insurance and workmanship warranty length before you sign.
- Ask what triggers a change order and how it gets priced.
San Diego questions
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