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What Is a Junior ADU (JADU) in Los Angeles?

Remodeling Tips
May 04, 2026•2 min read

What Is a Junior ADU (JADU) in Los Angeles?

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Introduction

A Junior Accessory Dwelling Unit (JADU) is a smaller type of accessory dwelling unit built within an existing home. In Los Angeles, JADUs are becoming a popular option for homeowners who want to add living space without building a separate structure.

Understanding what a JADU is and how it works can help you decide if it’s the right option for your property.

What Is a Junior ADU (JADU)

A JADU is a small living unit created within the existing footprint of a single-family home.

Unlike a detached accessory dwelling unit in Los Angeles, a JADU is part of the main residence.

Key Features of a JADU

JADUs have specific requirements.

They typically include:

• Maximum size of 500 square feet
• Small kitchenette
• Separate entrance
• Shared or separate bathroom

JADU vs Detached ADU

The main difference between a JADU and a detached ADU is location.

• JADU: Inside the main home
• Detached ADU: Separate structure in the backyard

JADUs are generally more affordable because they use existing space.

Benefits of Building a JADU

JADUs offer several advantages for homeowners.

• Lower construction cost
• Faster approval process
• Additional rental income
• Flexible living space for family

Zoning and Permit Requirements

In Los Angeles, JADUs must meet specific zoning and building regulations.

Working with a professional ensures your project complies with all requirements.

Is a JADU Right for You

A JADU is ideal for homeowners who want to maximize their existing space without building a new structure.

It’s a cost-effective way to increase property value and usability.

Work With an Experienced ADU Contractor

Re-Masters Remodeling helps homeowners design and build both JADUs and full accessory dwelling units in Los Angeles.

We proudly serve:

• Los Angeles
• Santa Clarita
• San Fernando Valley
• Antelope Valley

Start Your ADU Project

If you're considering a Junior Accessory Dwelling Unit in Los Angeles, our team can help you evaluate your space and create a functional design.

Request your free remodeling estimate today.

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Re-Masters Remodeling is a professional home remodeling contractor serving homeowners across Los Angeles, Santa Clarita, San Fernando Valley, and Antelope Valley. With over 20 years of construction experience, our team specializes in kitchen remodeling, bathroom renovations, and ADU construction. We share remodeling tips, cost guides, and home improvement insights to help homeowners plan successful renovation projects.

Re-Masters Remodeling

Re-Masters Remodeling is a professional home remodeling contractor serving homeowners across Los Angeles, Santa Clarita, San Fernando Valley, and Antelope Valley. With over 20 years of construction experience, our team specializes in kitchen remodeling, bathroom renovations, and ADU construction. We share remodeling tips, cost guides, and home improvement insights to help homeowners plan successful renovation projects.

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