Prefab / Modular ADU near Bellflower, CA

Ataman Studio is a trusted ADU contractor in Los Angeles, serving all of California. Full-service design, permitting, and construction for detached ADUs, garage conversions, and in-law units, with compliance to local zoning and state regulations.<... read more

BuildShure specializes in ADUs and tiny homes, offering models like Studio Pod, Casita, and 2-bed Residence built with SIP Panels. They guarantee fixed pricing and pay $500/day for delays, ensuring reliable, energy-efficient backyard cottages.

ADU Los Angeles (ADLA) is a specialized ADU contractor serving LA County. They offer consulting, custom design, construction, garage conversions, basement ADUs, attached and detached units, helping homeowners maximize property value.

Ultra-Unit Architectural Studio, based in Long Beach, CA, offers architecture and construction services for ADUs, residential, multifamily, and commercial projects. Led by Cameron Crockett AIA, LEED, with 25+ years experience. Free initial consult... read more

California Backyard Homes Inc specializes in prefab ADUs, tiny houses, and modular homes across California. Starting from $44,500, they offer turnkey installation including permits and utility connections, with financing available up to 23 years.<... read more

Nagar Builders Inc. is a Los Angeles construction company offering ADU construction, garage conversions, kitchen and bathroom remodeling, room additions, roofing, electrical work, and commercial remodeling since 2019.

Revival Homes is a California ADU project manager handling planning, financing, design, permitting, and construction. They build detached ADUs, garage conversions, JADUs, and more, with costs ranging from $100K to $300K.

Econstruct Inc is a Los Angeles ADU contractor offering full-service construction of accessory dwelling units. With 40+ pre-approved designs and 3D/AR tools via Ohana Dwellings, costs range from $200K–$450K+.

Los Angeles Advanced ADU Builders offers full-service ADU construction across LA, including garage conversions, detached units, JADUs & prefab ADUs. With 20+ years experience & 500+ builds, they handle design, permits & zoning complian... read more

Paramount Manufactured Sales in Riverside offers Skyline Homes-built ADUs for Southern California homeowners in LA, Orange, Riverside, San Bernardino & San Diego Counties. Models range from 479–849 sq ft. California law now allows detached A... read more

LADU is a full-service ADU builder in Los Angeles managing design, permits, and construction end-to-end. Serving LA, Orange, San Diego & more counties, they offer custom and prefab ADUs with transparent pricing and free on-site evaluations.read more

BSPK Design is a Venice, CA residential studio founded by Chris Faulhammer & Roman Reiterer, with 50+ years combined experience. Services include custom homes, fire rebuilds & prefab NextGen Building. Multiple Houzz Best of Design award wi... read more

ADUs are secondary units built on existing lots. ORR Construction builds detached ADUs, garage conversions, JADUs & in-law suites in California. Costs range $50–$300/sq ft. California laws like SB 897 simplify the permitting process.

Eureka Modular builds steel frame modular ADUs and single family homes. Steel framing offers durability, design flexibility, and sustainability. Ideal for detached ADUs, backyard cottages, granny flats, and casitas with efficient, precise construc... read more

Addition Builders LA is a full-service ADU contractor in Los Angeles offering custom ADUs, prefab units, and garage conversions. Licensed, bonded, and insured, they manage design to construction, completing projects in as little as nine months wit... read more