14 Best ADU Builders in Long Beach, California

Verified ADU contractors and builders in Long Beach, CA

Showing 1–14 of 14 listings

ADU Certified

Specializing in accessory dwelling unit construction and conversions throughout Long Beach, this certified contractor transforms residential properties into multi-unit homes with expert design and seamless permitting. Whether building new ADUs from the ground up or converting existing structures, they deliver quality construction tailored to maximize your property's potential and rental income.

+1 877-969-2272
View Details →

ADU Homes, Inc.

Specializing in accessory dwelling unit construction throughout Long Beach, we help homeowners maximize their property potential with expertly built ADUs designed to meet local codes and your family's needs.

+1 323-484-2433
View Details →

ADU MAXX

+1 562-508-1814
View Details →

aducustomhomes

+1 562-986-4313
View Details →

Caspers Construction Long Beach

+1 562-987-1716
View Details →

Eco Renovate Pros

+1 562-451-0200
View Details →

EWC Construction Services

+1 310-927-4019
View Details →

Garage Conversion Contractor Long Beach

Transform your Long Beach garage into functional living space with expert conversion services tailored to your home's needs. From design through completion, we specialize in creating beautiful, code-compliant garage-to-living-space conversions that maximize your property's potential.

+1 803-500-4009
View Details →

Harding Design & Construction

+1 562-333-6392
View Details →

JC Proline Remodeling

+1 562-825-1145
View Details →

Joey Builders Inc

+1 562-647-3275
View Details →

MTZ Contractors

+1 562-900-3915
View Details →

THE ADU BUILDER INC

Specializing in accessory dwelling unit construction throughout Long Beach and surrounding areas, this contractor delivers complete ADU building services from design through final completion. Whether you're looking to add rental income, house family members, or maximize your property's potential, they bring expertise in navigating local regulations and delivering quality residential additions.

+1 562-414-6494
View Details →

Urban Construction & Design Solutions

+1 562-824-1033
View Details →

Frequently Asked Questions — ADU Builders in Long Beach

How much does it cost to hire an ADU builder in Long Beach?

ADU construction costs in Long Beach, California vary widely depending on size, type, and site conditions. Detached ADUs typically range from $150,000–$400,000+, while garage conversions and attached ADUs can be more affordable. Contact multiple builders in Long Beach to get accurate quotes for your specific project.

How long does it take to build an ADU in Long Beach?

In Long Beach, the ADU construction timeline typically ranges from 6 to 18 months from permit application to move-in. Permitting alone can take 2–6 months depending on California local regulations. Prefab and modular ADUs often have faster timelines than site-built units.

Do I need a permit to build an ADU in Long Beach?

Yes, a building permit is required for ADU construction in Long Beach, California. Your ADU builder will typically handle the permit application as part of their service. California has adopted streamlined ADU permitting laws in recent years, which may reduce wait times.

What types of ADUs can be built in Long Beach?

Common ADU types in Long Beach include detached ADUs (backyard cottages), attached ADUs, garage conversions, basement conversions, and prefab/modular ADUs. The best type for your property depends on lot size, zoning, and budget. A local Long Beach ADU builder can advise on what's allowed on your specific parcel.