The Easiest Way to Add Space to Your Home.

Explore our custom and pre-approved ADU plans. Build it yourself or work with our expert builders.

You (and your backyard) deserve a beautiful new ADU

More Space

Add additional living space without the hassle and expense of moving. ADUs can be used for a Home Office, Guest House, Artists Studio, etc.

Higher Property Value

ADUs are a phenomenal investment. The cost to design and build an ADU will pay for itself when it is time to sell.

Passive Rental Income

ADUs can be rented out to generate passive income. This can help offset mortgage payments, property taxes, or other expenses.

How Can We Help You?

Plans Only, Full-Service Construction - or Both.

ADU Plans

A successful ADU project starts with a well thought out design and a good set of construction documents.

Inexperienced ADU Architects or jack-of-all-trades designers will cause project delays and tens of thousands of dollars of additional project costs.

Our Garage Conversion and Detached ADU Plans and designed by ADU experts who focus solely on designing beautiful small homes.

We're so confident you will love the design of your new ADU that we offer a 100% money back guarantee.

ADU Construction

How many horror stories have you heard about flaky contractors and projects that go way over budget?

We have partnered with some of California's best and most experienced home builders to provide transparent, all-inclusive, and competitive construction pricing for all our ADU projects.

And if you prefer to use your own builder, or even act as an Owner-Builder, we offer ongoing support during the construction process to ensure a successful project.

Exterior view of a Spanish Style ADU in Los Angeles

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.

Read the Google Review Here

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


We're grateful for our clients that have chosen us to help plan, design, and build their new ADU.


From Our Blog

The latest and most popular blog posts about California ADUs

How to Build an ADU

How to Build an Accessory Dwelling Unit (ADU)

A Step-by-Step Guide to Planning and Building an ADU in Los Angeles.

April 03, 2023

Taking a piece of real estate and improving it by adding an ADU is a relatively easy form of Real Estate Development that even a novice real estate investor or homeowner can accomplish with the right guidance.

How Much Does It Cost to Build an ADU?

(March 13, 2023) That is inevitably the first question you'll ask when considering a new ADU.

This 650 SQFT ADU Is Worth Over $1,000,000!

(April 03, 2023) A small ADU can be worth over $1,000,000!

Garage Conversion 101

(June 15, 2023) Everything You Need to Know About Converting Your Garage Into an ADU in Los Angeles.

Top 3 ADU Types That Increase Property Value (Ranked)

(January 1, 2023) Homeowner throughout California are turning to Accessory Dwelling Units (ADUs) to increase their property value.