Attached ADU

1,200/SF maxium
4 feet
Two
Depends on location

What is a attached ADU

An Attached Accessory Dwelling Unit (ADU) is a housing unit that is added to an existing single-family home and shares a wall with the main dwelling. Similar to a detached ADU, it is designed to be a completely independent unit with its own entrance, kitchen, bathroom, and living area.

Attached ADUs have become increasingly popular in Los Angeles and throughout California due to changes in state laws aimed at addressing the housing shortage.

Here are the typical regulations for building an attached ADU in Los Angeles, although you should check with local planning officials or a planning professional for the most recent regulations:

Again, these requirements can vary depending on specific situations and locations, so it's crucial to consult with local planning officials or a planning professional for the most accurate information.

View Other Types Of ADUs

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

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