ADU Contractors

ADUs (accessory dwelling units) are self-contained homes on existing properties, ideal for rentals or multi-generational living. Costs range $100K–$200K. Baum Construction & Development Inc builds ADUs in Long Beach, CA.

California ADUs are self-contained units on single-family lots, offering rental income, family housing, and no land purchase. Build up to 1,200 sq ft. Fassino Development guides homeowners through ADU construction, ensuring local code compliance.

Mighty ADU Company is a trusted ADU contractor in Portland, OR, specializing in designing and building accessory dwelling units. They manage everything from planning and permitting to construction, ensuring quality, transparency, and stress-free results for homeowners.

Hammer & Hand builds Accessory Dwelling Units (ADUs) in Portland & Seattle. From garage conversions to detached cottages, they guide homeowners through zoning, permits, design, and costs for rental income or multigenerational living.

ADUs BY JACK is a full-service ADU contractor in Greater Los Angeles, led by Jack Topalian with 30+ years experience. Specializing in detached ADUs, garage conversions, JADUs, and granny flats across Burbank, Encino, Tujunga & more.

Prenvalley Builders is Denver's trusted ADU contractor & custom home builder. Specializing in ADUs, renovations, pop-tops & garages across the Front Range, they offer a seamless design-build process with honest pricing & energy-efficient construction.

Eco-friendly ADU builder specializing in accessory dwelling units, granny flats, and JADUs. Uses recycled materials and steel-skinned insulated panels. Flexible designs, fast build times. Service-disabled veteran-owned with veteran housing and employment programs.

Arise Constructions is a Denver, CO full-service residential contractor offering custom homes, ADUs, remodels, additions, and structural work. They use the JobTread portal for transparency and back all work with a minimum one-year warranty.

Post and Beam Barns (Country Carpenters, Hebron CT) offers handcrafted post and beam kits ideal for ADUs, backyard cottages & in-law suites. With 50+ years experience, models include The Sterling, Hemingway & Barrett. Timeline: 4–12 months.

Wis Builders offers residential and commercial construction services including ADU construction, home additions, deck building, bathroom remodeling, shed installation, drywall, painting, and paver installation. Known for quality workmanship and on-time delivery.

Zook Cabins is a trusted ADU builder offering A-Frame Modern and Sonoma ADU models in 1-2 bedroom layouts. As a certified detached ADU builder, they provide granny flats, in-law suites, and backyard cottages with regulatory guidance included.

Hanson Design Build Remodel is a trusted ADU contractor serving Minneapolis and St. Paul with 17+ years of experience. Specializing in garage conversions, detached ADUs, and attached ADUs, they handle design, permits, and builds seamlessly.

Georgia ADU is Atlanta's top accessory dwelling unit builder, offering end-to-end ADU construction. Services include detached ADUs, garage conversions, in-law suites & more. Projects start at $150,000, with timelines of 4–9 months.

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.