Attached ADU near Whittier, CA

Create Construction is a licensed, family-owned ADU contractor serving Los Angeles, Orange, and Ventura Counties. They specialize in garage conversions, granny flats, and attached ADUs, managing design, permits, and construction from start to fini... read more

NEO Builders is a locally owned and operated construction and design company that helps every client individually and brings a unique perspective to each build.

Calpacific Contracting builds ADUs, casitas & garage conversions across Riverside, Orange, LA & San Bernardino Counties. 80+ years experience. Full-service: permits, design, construction & inspections handled end-to-end.

California ADU Experts simplify the complexities of ADU development with a full-service approach encompassing everything from design and architecture to permitting and construction.

Their goal is to provide a streamlined experience tailored ... read more

California Dream Builders specializes in ADU design and construction, offering end-to-end services including architectural design, permitting, and full construction management. They build detached ADUs, granny flats, in-law suites, and backyard co... read more

An ADU (accessory dwelling unit) is a secondary home on a single-family property. Tohill Construction builds granny flats, garage conversions & detached ADUs, offering predesigned plans, custom designs, and financing support.

Thousand Oaks Elite ADU Builder specializes in detached ADUs, attached ADUs, and garage conversions. Services include design, permitting, and full construction, built to California Title 24 standards for rental, multigenerational living, or home o... read more

Ofir Construction Inc. is a Los Angeles ADU contractor with nearly 20 years of experience. They specialize in ADU builds, garage conversions, and in-law suites, managing permits, planning, and construction while following California building codes... read more

Experience a personalized approach to ADU construction with GO ADU. From initial design concepts to permits, construction, and financing, we offer a seamless, all-in-one solution customized to your needs. With owner involvement at every stage, you... read more

California's 2020 ADU laws allow two ADUs on single-family lots, reduced setbacks, larger units up to 800 sq ft, no owner-occupancy rules until 2025, faster approvals, and expanded parking exemptions statewide.

Sterling-Watson Collective is a full-service ADU contractor in Los Angeles offering design, permitting, structural engineering & construction management for accessory dwelling units, helping homeowners add rental units, guest suites & more... read more

ADU Hotline offers affordable ADU design and permitting in Southern California. From granny flats to garage conversions, they handle the full process in 3–4 weeks, helping homeowners add rental income or family housing efficiently.

ADU Designers & Builders is a full-service ADU contractor in Fullerton, CA, offering detached ADUs, garage conversions, attached ADUs & JADUs across Southern California, with expert design, permitting, solar integration & 0% financing ... read more

Pomona General Contractors offers ADU construction in Pomona, including detached ADUs, attached ADUs, and garage conversions. Services cover permitting, 3D design, energy-efficient builds, and full construction management for granny flats, in-law ... read more