San Diego Homes with ADU, Casita & Guest House
Flexible ADU Living in San Diego
San Diego is one of California’s leading cities for Accessory Dwelling Units (ADUs), backyard casitas, guest houses, and granny flats. Local ADU laws align with California SB9 & AB68, making it easier for homeowners to build income-producing or multi-generational spaces.
Why San Diego is Perfect for ADUs & Guest Houses
- ✅ Fully supports California’s ADU legislation
- 🏡 Many homes have larger lots for backyard units
- 📋 Clear permitting for detached guest houses and garage conversions
- 🔑 Coastal overlay areas have extra review — check with planning
- 💡 Huge demand for rental ADUs near beaches & universities
View San Diego’s Official ADU Guide
San Diego Listings: Homes with ADU, Casita, or Guest House
🎯 Live feed: San Diego homes for sale with legal ADUs, backyard casitas, or detached guest houses — updated every 15 minutes.
New listings daily — check back often!
San Diego ADU Rules & Common Types
San Diego homes follow SB9 & AB68, allowing homeowners to build detached casitas, garage conversions, or Junior ADUs (JADUs) inside the main residence. Always verify local zoning and coastal overlays.
- Detached backyard guest house
- Converted garage or basement ADU
- Studio JADU with separate entry
How to Finance an ADU in San Diego
Many San Diego homeowners finance ADUs with smart options:
- Purchase loans for homes with ADUs
- Second mortgage, HELOC, or fixed HELOC hybrid
- Cash-out refinance
- Reverse mortgage or reverse second mortgage
Related San Diego Real Estate Pages
Work with a San Diego ADU Real Estate Specialist
Homes with permitted ADUs or guest houses sell faster and for more. Connect with an experienced San Diego ADU real estate agent who knows local rules and popular neighborhoods.
San Diego ADU & Guest House FAQ
Are ADUs allowed in San Diego?
✅ Yes — San Diego fully aligns with California’s ADU laws and local coastal overlays.
Can I build a detached guest house?
Yes — many neighborhoods allow backyard casitas with a permit.
Do I need a permit for a garage conversion?
Yes — all conversions must meet building codes and planning requirements.
Where are ADUs common in San Diego?
Coastal communities, older urban neighborhoods, and areas with larger lots often have permitted ADUs.