How Long Does It Take to Build a Detached ADU in Los Angeles?

detached adu timeline los angeles construction time accessory dwelling unit build process

Introduction

Building a detached accessory dwelling unit (ADU) in Los Angeles is a valuable investment, but many homeowners want to know how long the process takes before getting started.

Understanding the ADU construction timeline helps you plan your project and set realistic expectations.

Planning and Design Phase

The first step is planning and design.

During this phase, homeowners work with contractors to finalize layouts, materials, and overall design.

This stage typically takes 2 to 4 weeks.

Permit Approval Process

Permits are required before construction begins.

In Los Angeles, permit approvals typically take 4 to 8 weeks, depending on the complexity of the project.

Site Preparation and Foundation

Once permits are approved, construction begins with site preparation and foundation work.

This stage usually takes 2 to 3 weeks.

Framing and Structural Work

After the foundation is complete, framing begins.

This includes building the structure, roof, and exterior walls.

This phase typically takes 3 to 5 weeks.

Interior and Finishing Work

The final stage includes:

• Electrical and plumbing
• Insulation and drywall
• Flooring and finishes

This phase usually takes 4 to 6 weeks.

Total ADU Construction Timeline

From start to finish, building a detached ADU in Los Angeles typically takes 4 to 6 months, depending on design complexity and permit timelines.

Work With an Experienced ADU Contractor

Re-Masters Remodeling helps homeowners complete ADU projects efficiently and on schedule.

We proudly serve:

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

Start Your ADU Project

If you're planning to build a detached ADU, our team can guide you through every step of the process.

Request your free remodeling estimate today.