San Diego's most trusted ADU construction company. We design, permit, and build stunning accessory dwelling units that add real value — and real beauty — to your property.
No obligation. Juan will personally review your project.
From sleek garage conversions to architect-designed detached guest homes — we deliver craftsmanship that San Diego homeowners trust.
Fully bespoke ADU design and build from the ground up. We work with you on layout, finishes, and functionality to create a unit that's uniquely yours.
Transform your underused garage into a stunning living space. Our conversions are fully permitted, insulated, and finished to luxury standards.
A private, standalone structure in your backyard. Ideal for rental income or multigenerational living with complete privacy and independence.
Seamlessly expand your existing home's footprint with an architecturally integrated addition — built to match your home's character and style.
We handle the entire design and City of San Diego permit process so you never have to deal with red tape. 100% permit approval record on every project.
Hotel-quality finishes, designer kitchens, spa bathrooms — we build guest homes that your visitors (and future renters) will never want to leave.
Every project is a collaboration between your vision and our craftsmanship. Here's a glimpse of what we've built for San Diego homeowners.
We've perfected our process over 12 years and 150+ projects. Here's exactly what working with Juan and our team looks like.
Juan personally meets with you to understand your goals, walk your property, and discuss possibilities and ROI.
Our in-house designers create custom plans tailored to your property, maximizing space and aesthetic appeal.
We handle every permit submission and City of San Diego approval. 100% permit success rate on all our projects — zero rejections.
Our expert crew builds your ADU on time and on budget. We don't leave until you're completely satisfied and ready to move in.
My name is Juan Moreno, and I've spent the last 12 years building luxury ADUs across San Diego County. What started as a passion for architecture and craftsmanship has grown into the most trusted ADU company in the region.
When you work with 5 Star ADU, you're not handing your project to a salesperson and hoping for the best. I'm personally involved in every project — from the first consultation to the final walkthrough.