

ADU & Backyard Homes
Detached accessory dwelling units built for rental income, family or resale value. We handle design, permits and construction from conception to occupancy.
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Licensed & Insured · CA Lic. B-239311
Ritz Design Build creates custom accessory dwelling units, garage conversions, granny flats and backyard offices across San Diego County — and we've been building here since 1965.
Our Services


Detached accessory dwelling units built for rental income, family or resale value. We handle design, permits and construction from conception to occupancy.
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Turn an unused, glorified storage unit into a livable room or a backyard rental. Attached, detached or integral garages — we convert all three.
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Keep aging parents close and independent. Single-story, step-free layouts designed around how your family actually lives — from studio to two bedroom.
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A real workspace forty steps from your back door — plus home theaters, gyms and gaming rooms. Quiet, insulated and fully permitted.
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We measure your home and digitize it into full-color 3D renderings you can walk through virtually — then pull every plan and permit ourselves.
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Most ADU horror stories come from the same place: too many separate companies, and nobody checking what the city will allow until it's too late.
A designer, an architect and the construction crew are the same company. Hiring an architect, a designer and a builder separately is the fastest way to create delays, miscommunication and failed inspections — and to blow the budget.
San Diego County doesn't allow every type of ADU in every neighborhood. Clients come to us after finding out their plans can't be built. We research the permitting rules for your address before the design phase starts.
You have zero chance of paying for designs that cannot be built. We obtain the plans and permits, coordinate every inspection, and manage the timeline so a permit never quietly expires on you.
We partner with the same premier tradesmen on all of our projects. They've worked together for years, and it shows in how efficiently the job site runs.
How It Works
We listen to what you need, suggest ways to improve it, and find out what San Diego County will actually let you build in your neighborhood.
We measure your property and digitize it into full-color 3D renderings. Walk through your ADU virtually and change it before anyone breaks ground.
We prepare the drawings and walk them through the approval process ourselves — including the plan review and permit fees the city requires.
One crew, one schedule, one point of contact. We coordinate every inspection through to the final sign-off.
What Our Clients Say
“The professionals at Ritz have, in our mind, re-defined the standard of excellence.”
“Their team performed like a fine tuned machine from conception to completion.”
“We are 100% pleased with our new living space! When we are ready for additional home improvement we will be calling Ritz Design Build.”
“Ritz’s team of contractors are excellent. They were generally quick, professional, and showed pride.”
Let's Talk About Your Project
Call us directly — a Ritz designer is ready to walk your property, check what's buildable in your neighborhood and put your idea in 3D.
Free 3D design · Fully Licensed & Insured · CA Lic. B-239311