Cost to Build a House in San Diego, California
Construction costs in San Diego, California typically range from $290–$860 per square foot. Typical full builds run $580K–$3.01M+, with ADUs from $288K–$428K+ and permits 4%–8%–$55K–$110K. Average timeline: 8–16 months.
Cost Snapshot
- Cost per Square Foot: $290–$860
- Typical Full Build: $580K–$3.01M+
- ADU Construction: $288K–$428K+
- Permit Costs: 4%–8%–$55K–$110K
- Typical Timeline: 8–16 months
Cost Impact Factors
- Zoning restrictions in San Diego
- Lot size, slope, and access
- Permit requirements in San Diego
- Energy and building codes
- Labor costs in California
Frequently Asked Questions
- How much does it cost to build a house in San Diego?
- In 2026, residential construction in San Diego costs $290–$860+ per square foot depending on finish tier, lot conditions, and project scope.
- How long does it take to build a house in San Diego?
- A typical new-construction home in San Diego takes 8–14 months from permit approval to completion. Permit processing adds 8–16 months.
- How much does an ADU cost in San Diego?
- ADU construction in San Diego typically costs $288K–$428K+ depending on size, finish level, and whether it's attached or detached.
- What permits do I need to build in San Diego?
- You'll need building permits, plan check approval, and potentially grading, electrical, plumbing, and mechanical permits. Permit and soft costs typically run 4%–8% of build cost — roughly $55K–$110K on a typical project.
- Is Buildora IQ accurate for San Diego estimates?
- Yes. Buildora IQ calibrates every estimate to San Diego's current labor rates, material costs, and permit fee structures using local market data.
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