#1 Rated ADU Builders in Los Angeles

Customer experience

What your SoCal neighbors have to say

"We’re over the moon with the ADU SoCal ADU Firm built for us. The whole process was super smooth, and the team was awesome—always keeping us in the loop. The quality of their work is amazing, and they finished everything right on time. Our new ADU looks great and fits perfectly with our main house. We’d totally recommend SoCal ADU Firm to anyone thinking about building an ADU."

— The Hernandez Family

Los Angeles, CA

"SoCal ADU Firm totally blew us away. They came up with a design for our ADU that’s both super cool and exactly what we needed. They really listened to what we wanted and nailed it with a design that’s both beautiful and practical. The construction went off without a hitch, and the attention to detail was spot-on. We’re thrilled with how it turned out and so grateful to the SoCal ADU team for making our dream happen."

— Mark and Lisa Thompson

Long Beach, CA

"We had an awesome experience with SoCal ADU Firm. Their team was friendly, professional, and always ready to answer our questions. They handled everything—from permits to finishing touches—like pros. The ADU they built is exactly what we needed and has given us some much-needed extra space. The quality of their work is top-notch, and we couldn’t be happier."

— Emily and Jake Parker

Torrance, CA

"Working with SoCal ADU Firm was a blast from start to finish. They designed an ADU for us that looks absolutely stunning and fits our property like a glove. Their attention to detail during construction was seriously impressive, and you can see the quality in every inch of our new space. SoCal ADU made the whole process easy and stress-free, and we’re so pumped about the beautiful space they created for us."

— The Nguyen Family, Riverside

Costa Mesa, CA

"We’re so happy with the ADU SoCal ADU Firm designed and built for us. They took our ideas and turned them into something that’s not only functional but also super stylish. They finished the project on time and paid attention to every little detail. The whole team was great to work with, and we’d definitely recommend SoCal ADU Firm to anyone thinking about building an ADU."

— Jessica and Michael Carter

Silver Lake, CA

"I can’t say enough good things about SoCal ADU Firm. From our first meeting to the final walkthrough, they were nothing but professional and easy to work with. The ADU they built for us turned out exactly how we wanted, and the quality is fantastic. It’s added so much value to our property. Big thanks to SoCal ADU for making the whole process so easy and delivering such an awesome final product!"

— Sarah Martinez

Los Feliz, CA

Frequently asked questions

Q1: What is an ADU (Accessory Dwelling Unit)?

An Accessory Dwelling Unit (ADU), also known as a granny flat, in-law unit, or secondary suite, is a smaller, independent residential dwelling located on the same lot as a primary residence. ADUs can be detached, attached, or converted from existing structures like garages or basements. In California, ADUs are a great way to maximize space, increase property value, or create rental income.

Q2: Am I allowed to build an ADU on my property?

Most properties in Southern California are eligible for ADUs, thanks to new state laws encouraging ADU development. However, zoning regulations, lot size, and local building codes may affect your ability to build. We offer complimentary site evaluations to help determine if your property qualifies for an ADU.

Q3: How long does it take to design and build an ADU?

The timeline varies depending on the scope of the project, the permitting process, and any customization. On average, the design and permitting process can take 3–6 months, with construction taking an additional 6–9 months. We work closely with you throughout every phase to ensure your project stays on schedule.

Q4: What are the different types of ADUs I can build?

There are several types of ADUs, including:

‍Detached ADU: A standalone unit separate from the main home.
‍Attached ADU: Shares a wall with the main residence but has its own entrance.
‍Garage Conversion: Converts an existing garage into a livable space.
‍Junior ADU (JADU): A smaller unit within the existing home structure, usually limited to 500 square feet.

We’ll help you choose the right type based on your property and needs.

Q5: What are the benefits of building an ADU on my property?

Building an ADU has several benefits, including:

Increased property value
Additional rental income
Housing for family members, such as aging parents or adult children
Greater flexibility in property use
Improved affordability for multi-generational living

Q6: Do I need a permit to build an ADU?

Yes, permits are required to build an ADU. The permitting process includes approval for design, zoning, and construction. Southern California cities have different regulations, but our team handles all aspects of the permitting process to make it as smooth as possible for you.

Q7: Will building an ADU increase my property value?

Yes! Building an ADU can significantly increase the value of your property by providing additional living space and potential rental income. Many homeowners in Southern California see a substantial return on investment when adding an ADU to their property.

Q8: Can I rent out my ADU once it’s built?

Yes, ADUs are often used as rental units, either for long-term tenants or as short-term rentals. However, local ordinances may have restrictions on short-term rentals, so it’s essential to check with your city’s regulations. We can help guide you through these legalities.

Q9: Are there size limits on how big my ADU can be?

California state law allows ADUs to be up to 1,200 square feet, but local jurisdictions may have additional limitations based on lot size and zoning. Typically, the size of the ADU should be proportional to the size of the main home and property. We’ll help you determine the ideal size during the planning phase.

Q10: How energy-efficient are ADUs?

ADUs built today are designed to meet modern energy-efficiency standards, including proper insulation, energy-efficient windows, and high-efficiency appliances. We use sustainable building practices to ensure your ADU is eco-friendly and cost-effective to operate.

Q11: Do ADUs have to meet specific building codes in California?

Yes, ADUs must meet California’s building codes, which include standards for fire safety, energy efficiency, plumbing, and electrical systems. Our firm is experienced in adhering to all local and state regulations to ensure your ADU is compliant and built to the highest standards.

Q12: Can I finance the construction of an ADU?

Yes, there are several financing options available for ADU construction. These include home equity loans, construction loans, and specialized ADU financing programs. We can connect you with trusted lenders who offer competitive rates and terms for ADU projects.

Q13: Do I need a permit to build an ADU?

Q14: How do I get started with my ADU project?

The first step is to schedule a free consultation with our team. We’ll assess your property, discuss your goals, and provide an estimate. From there, we’ll handle the design, permitting, and construction phases, ensuring a smooth and stress-free process from start to finish.

Book Your FREE Consultation today.

(866) 995-2785

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