ADU · Brea
Garage Conversion ADU, Brea
A Brea garage conversion ADU: an under-used two-car garage turned into a bright, open-plan studio-style unit with a full kitchen — the fastest, most budget-friendly path to a legal rental unit in Orange County.
- ProjectGarage Conversion ADU
- CityBrea, CA
- BuilderAvorino · Lic. #1107538
- Typical budget$85K–$170K+ (garage conversion)
- Typical timeline4–6+ months build, after design + permits
- Warranty1-yr fit & finish · 4-yr systems · 10-yr structural
Scope of work
What this build involved.
- Two-car garage converted to a legal ADU
- Full kitchen with island seating + open living
- Insulation, drywall, and egress brought to habitable code
- Electrical panel work + dedicated circuits
- Exterior door + window package for light and egress
Gallery
Finish + structural detail.
Permits & process
Garage conversions skip foundation and framing review, so Brea's plan check runs lean — the work is proving habitability: insulation, egress, ventilation, and electrical capacity. State ADU law protects the conversion right even where HOAs object.
The build
Conversions are the value play: the shell exists, so budget goes into what you touch daily — kitchen, bath, light, and sound insulation from the main house.
What clients say about this kind of build
“They converted our one-car garage into a Junior ADU. The city was difficult to work with, and Avorino took care of everything with them. Six months after finishing, there are no issues at all. Their cost was very competitive.”
Next step
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