ADU Construction

We build Garage Conversion and Detached ADUs all over Los Angeles County.

Trust your project to the most experienced ADU builder with over 50+ completed ADU projects since 2017.

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Quality Craftsmanship

Unparalleled craftsmanship that meets the highest industry standards, ensuring longevity and durability.

Efficient Timelines

We provide accurate and realistic timeframes and adhere to them, ensuring your project is completed on time.

Transparent Pricing

No hidden costs or unexpected charges. We offer clear, upfront pricing tailored to your ADU project.

Completed ADU Construction Projects

Spanish Style ADU Construction Project
Spanish Style Conversion
Modern Craftsman ADU Construction Project
Modern Craftsman ADU
Guest House ADU Construction Project
Modern Guest House
Garage Conversion ADU with Small Addition
2-Car Garage Conversion + Bedroom Addition
Farmhouse ADU Construction Project
Farmhouse ADU
Manhattan Beach Garage Conversion ADU Project
Manhattan Beach Conversion
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How It Works

FREE 30-Minute Consultation

We offer a free initial consultation and preliminary feasibility study to make sure your property is eligible for a garage conversion, and to answer any questions you have regarding planning, designing, and building a garage conversion ADU.

Design & Construction Documents

Our ADU Designers are experts in the ADU laws and California building codes, and focus solely on designing beautiful small homes. We work collaboratively with you to make sure your new ADU design meets all your lifestyle needs.

Once you are 100% satisfied with the design, we generate the construction documents (i.e. - blueprints). This is where we add all the construction details and building code requirements and create a set of construction documents which will be used to build you new ADU.

Permit Approvals

We handle all the permit approval paperwork and expedite your project through the local building department. We have processed over 200 garage conversion plans throughout California, and have the knowledge and experience needed to get your project permitted and approved fast.

What Our Clients Are Saying


Josh - Burbank

We had a TERRIFIC experience with Charlie at CALI ADU. He was efficient, communicative and provided us with great blueprints for our garage conversion. Whenever the city had corrections, he was right on top of it responding and resubmitting. Highly recommend working with him.

Read the Google Review Here


Madeline - Manhattan Beach

I am so happy we chose CALI ADU to design and build our garage ADU. Charlie Melvin is exactly as easy to work with as he seems when you first meet him.

The consistent communication is so appreciated, and the outstanding quality of their work is exactly like the pictures we saw in the CALI ADU online portfolio.

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Kevin - North Hollywood

We worked with Charlie from CALI ADU, who we engaged to draft our ADU. Initially, we worked with him to draft the ideas, but ultimately determined he was the best person to carry out the work. Charlie is professional, and he was always accessible when we had questions. He is adaptable and patient with changes. My wife and I highly recommend Charlie.

Read the Google Review Here