Design · Permit · Build
ADU Design & Build in San Diego County
One accountable team takes your ADU from feasibility check to keys: design, city permits, and construction under one roof.
Filmed on our job sites
Watch our ADUs go up
Real builds, filmed by us: a before and after, a full time-lapse, and framing day on a conversion.
Explore an ADU
Walk around one right now
Spin the model. This is the kind of detached backyard home we design and build across San Diego County: compact outside, generous inside.
Detached ADU
A standalone backyard home with its own entrance, kitchen, and bath. The most privacy and the strongest rental appeal.
Attached ADU
Built onto your existing house. Often the most cost-effective path when your lot or setbacks make detached tricky.
Garage Conversion
Turn space you already have into a living unit. Existing structure can mean simpler permitting and a faster build.
Drag to explore
Why build an ADU
Small footprint. Big returns.
Rental income
The number one reason our clients build. A well-built ADU earns month after month, year after year.
Room for family
Parents nearby but independent. Adult kids launching. A guest house that actually gets used.
Property value
More livable square footage on land you already own is one of the strongest improvements you can make.
Recent ADUs
Built by Nucave
Real ADU projects across San Diego County.
Rules by city
What can you build on your lot?
Setbacks, size limits, height, parking: every city plays by different rules. Pick yours.
ADU questions
Asked at every consultation
Next step
Find out what your lot allows
Start with the calculator for an instant range, or book a free consultation and we'll walk the property with you.