Garage Conversion ADU
Transform your garage into a functional ADU for extra living space or rental income.
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You can turn your garage into a living space - great for a rental, guest room, home office, or a spot for family. It’s a simple, affordable way to add space without major construction. Let’s take a look at the benefits, costs, and design ideas so you can start picturing your new space with a garage conversion ADU.
Benefits
Why Transform a Garage into Home
Passive income
Your converted garage can become a rental property, providing steady monthly income with minimal effort.
Guest houses
It can be the perfect guest house, offering a comfortable, private space for visiting family members or friends.
Home office
A converted garage unit can be transformed into a productive home office or creative studio, tailored to your needs.
Long-term living space
It can serve as a comfortable living space for parents or adult children, offering independence while staying close to family.
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Perks of Building an ADU in Your Garage
Keep your yard intact
No major excavation or new foundation needed
Speed of rebuilding
Often completed faster than new construction ADUs
Flexibility
It is easy to modify both attached and detached garages
prices
Cost of Building an ADU in the Backyard in California
ADU Type
Basic Garage Conversion
Mid-range Garage Conversion
High-end Garage ADU
Options
studio-style, minimal layout
1-bedroom with full kitchen and bath
larger units or luxury finishes
Price
$90,000 – $130,000
$130,000 – $180,000
$180,000 – $250,000+
Cost Estimate
The cost to build an ADU in Los Angeles or San Diego typically ranges from $100,000 to $250,000. Attached ADU ideas, such as converting a garage or basement, can be more budget-friendly compared to detached new builds.
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Options for 1 or 2 Car Garage ADU Conversion
Pinewood Residences
Pinewood Residences
A bright and airy 400 sq ft unit for an aging parent, complete with wide doorways and no steps
Pinewood Residences 2
Pinewood Residences 2
A bright and airy 400 sq ft unit for an aging parent, complete with wide doorways and no steps
FAQ
Common Questions About Backyard ADUs Answered
Do I need a permit to convert my garage into an ADU?
Yes. But don’t worry, ADU Scale helps you manage the garage conversion permits process from start to finish.
How long does a garage conversion take?
Once permits are obtained, most garage ADU projects take 3 to 6 months to complete. We'll calculate the time for your remodeling after inspecting the site.
Can I build an ADU over my garage instead of inside it?
Yes! It’s a smart way to add space and still keep your storage or parking.
Let’s Fully Upgrade Your Garage
With the right plan and ADU Scale by your side, your garage conversion can become a cozy home, functional workspace, or income-generating rental.
More information
Converting a garage into an ADU lets you use what you have, saving time and money on building from scratch.
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