San Diego's ADU Boom
San Diego has emerged as one of California's fastest-growing ADU markets. With a median home price exceeding $900,000 and strong rental demand from military personnel, students, and young professionals, ADUs represent a compelling investment opportunity for San Diego homeowners.
San Diego ADU Regulations (2026)
- Maximum ADU size: 1,200 sq ft detached
- Minimum lot size: None required (state law)
- Setbacks: 4 feet side and rear
- Height: Up to 16 feet (may vary by community plan)
- Parking: Not required within transit priority areas or within half mile of a major transit stop
- The City of San Diego offers a Companion Unit (ADU) permit streamlining program
ADU Costs in San Diego
San Diego ADU costs are slightly lower than Los Angeles but still significant. Prefab ADUs from EVO start at $145,800 and offer the best value per square foot. Site-built ADUs typically range from $225,000-$375,000 in San Diego. The key cost advantage: San Diego's permit fees are generally lower than LA's, and the approval process tends to be faster.
San Diego ADU Rental Income
| Area | Studio | 1-Bedroom | 2-Bedroom |
|---|---|---|---|
| La Jolla / UTC | $2,000 | $2,500 | $3,200 |
| North Park / Hillcrest | $1,700 | $2,200 | $2,800 |
| Chula Vista / National City | $1,400 | $1,800 | $2,300 |
| Escondido / San Marcos | $1,500 | $1,900 | $2,400 |
Military & ADU Opportunity
San Diego's large military population creates consistent rental demand for ADUs. With multiple bases (MCAS Miramar, Naval Base San Diego, Camp Pendleton nearby), military housing allowances (BAH) often align perfectly with ADU rental rates, providing reliable tenants and guaranteed income.
Start Your San Diego ADU
EVO ADU has a dedicated San Diego team ready to guide you through the process. Start with a free site eligibility check, explore our models from 350-800 sq ft, and discover how quickly you can add a premium ADU to your San Diego property.