We turn underused spaces into the rooms and units your home actually needs.
Trusted by homeowners in San Diego and surrounding areas
Design, permits, and construction all handled in-house. You deal with one team instead of juggling five different contractors.
We know the local codes and permitting process inside and out. That means fewer delays and no costly surprises from failed inspections.
You get a detailed written estimate before any work starts. We don't hit you with hidden fees or vague allowances halfway through the project.

We design and build detached and attached accessory dwelling units from the ground up. Whether it's for rental income, aging parents, or a home office, we handle every phase.

We gut and rebuild kitchens that actually work for how you cook and live. New layouts, cabinets, countertops, flooring, and fixtures—all handled under one roof.

From cramped half-baths to full master suite overhauls, we make bathrooms that feel bigger, brighter, and more modern. Tile, vanities, showers, tubs—we do it all.
Every project starts with a detailed consultation so we understand exactly what you want and what your property allows. Browse our services below and reach out when you're ready to get started.
Call or send a request with the property details, the service you need, and anything important about the project in San Diego.
We review the request, explain the service path, and make the scope feel easy to understand before work begins.
The work is completed with the same focus on communication, professionalism, and follow-through that customers expect from Sterling Ridge ADU.
Sterling Ridge ADU should feel established, local, and easy to hire. The system now uses one clean home-services design language instead of changing the whole visual style by category.
Design, permits, and construction all handled in-house. You deal with one team instead of juggling five different contractors.
We know the local codes and permitting process inside and out. That means fewer delays and no costly surprises from failed inspections.
You get a detailed written estimate before any work starts. We don't hit you with hidden fees or vague allowances halfway through the project.
We design with the local climate and lifestyle in mind—indoor-outdoor flow, natural light, and materials that hold up to the Southern California sun.
The website is built to make the business feel professional, easy to contact, and grounded in the neighborhoods it serves.
"They built a detached ADU in our backyard and the whole process was smoother than I expected. The crew was respectful of our property and finished on schedule."
"We hired Sterling Ridge for a full kitchen remodel and couldn't be happier. They were upfront about costs from day one and the finished product looks incredible."
"Our garage conversion turned out better than we imagined. It's now a fully functional guest suite and our in-laws love having their own space when they visit."
Have a question? We've got answers. If you don't see what you're looking for, give us a call.
Call (831) 406-5762ADU costs in San Diego typically range from $150,000 to $350,000 depending on size, finishes, and site conditions. Factors like utility connections, foundation type, and permit fees all play a role. We provide detailed estimates after an on-site consultation so you know exactly what to expect.
Yes, most remodeling work that involves structural changes, plumbing, or electrical requires a permit from the City of San Diego. We handle the entire permitting process for you, including plan submissions and scheduling inspections. This keeps your project legal and protects your home's resale value.
From permits to completion, most ADU projects take between 6 and 12 months. The permitting phase alone can take 2 to 4 months depending on the city's backlog. Once construction starts, a typical detached ADU build runs about 4 to 6 months.
Absolutely. San Diego allows garage conversions under current ADU and housing regulations. You don't even need to replace the parking space in most cases. We'll check your property's zoning and walk you through what's allowed before any work begins.
We handle everything. Our team manages architectural design, engineering, permit applications, construction, and final inspections. You get one point of contact from start to finish, which keeps things simple and avoids the headaches of coordinating multiple contractors.
We're based in Mira Mesa and serve homeowners throughout San Diego County. That includes neighborhoods like Scripps Ranch, Poway, Rancho Peñasquitos, Clairemont, and beyond. If you're within the greater San Diego area, we can likely help.
Contact us today for a free, no-obligation estimate. We serve San Diego and surrounding areas.