ADU Builders in the United States
Find ADU builders and accessory dwelling unit specialists. Browse backyard cottage, granny flat, and in-law suite builders across the United States.
Atlantic Modern Homes
Fredericton, NB plant building modular homes, mini homes and ADUs indoors for delivery across NB, NS, PEI and NL.
Fredericton, New Brunswick, Canada
ilo Mini-Maison
Montérégie factory building single-module mini-homes 12 to 16 feet wide, delivered on the foundation of the buyer's choice.
Saint-Cyprien-de-Napierville, Quebec, Canada
Bâtiment Préfab
Saint-Hyacinthe factory producing panelised kits for mini-homes, micro-homes, chalets, houses and garages, delivered as an insulated weathertight shell.
Saint-Hyacinthe, Quebec, Canada
Smart Home Designs Niagara
Jordan Station, Ontario builder using steel structural insulated panels for tiny homes on wheels, ADUs and seasonal farmworker housing.
Jordan Station, Ontario, Canada
Bunkie Life
Rockwood, Ontario manufacturer of small cabin kits — "bunkies" of 99 to 220 square feet — shipped across Canada and the United States.
Rockwood, Ontario, Canada
Ballance Containers
Oakville, Ontario CSA A277-certified modular fabricator building container and steel-module ADUs, laneway homes and houses in a 25,000 sq ft plant.
Oakville, Ontario, Canada
Chaparral Industries Inc.
Kelowna modular-home manufacturer, MHABC member and 2026 award winner, delivering prefab homes across Western Canada.
Kelowna, British Columbia, Canada
Rover Tiny Homes
Family-run Chilliwack builder of certified four-season tiny homes, portable cottages and park-model RVs for British Columbia.
Chilliwack, British Columbia, Canada
Summit Building Co.
Vernon, BC builder of luxury tiny homes on wheels, park models and modular ADUs, shipping across Canada and the US.
Vernon, British Columbia, Canada
Sycamore Tiny Homes
South Shore Nova Scotia builder of code-built tiny homes on skids, from 280 to 398 sq ft, run by Tim and Tammy Kaulback.
Baker Settlement, Nova Scotia, Canada
Wee Bitty Builders
Saint John, NB shop building tiny homes, mini homes and full-size custom homes for Atlantic Canada, with published per-size pricing.
Saint John, New Brunswick, Canada
Pocket House
Alberta manufacturer of CSA Z241 park models and factory-built modular homes, delivering to Alberta, BC and the Yukon.
Onoway, Alberta, Canada
ATL ADU CO
Atlanta company building backyard accessory dwelling units end to end since 2018, with five named plans plus a custom option.
Atlanta, Georgia
USModular
Turnkey ADUs, manufactured, and modular homes across Southern California from an experienced Calimesa team.
Calimesa, California
Tiny Home Builders California
Riverside-based custom tiny homes, ADUs, and park models tuned to any California budget.
Riverside, California
ProCraft Structures
Custom-built Michigan tiny cabins, backyard studios, and portable buildings since 2005.
Sturgis, Michigan
Tiny Building Experts
Tiny Building Experts are Colorado Springs custom builders of RV-certified tiny homes on wheels, ADUs and toy haulers.
Colorado Springs, Colorado
Tieton Cabin Company
Fully prefabricated modern cabins designed to exceed IBC and IRC standards, built in Tieton, Washington by founders Jeb and Belinda Thornburg.
Tieton, Washington
Westwood Cabins
South Carolina-made modular cabins and cottages built for full-time living. Made in S.C. Built for Life.
Due West, South Carolina
Cozy Cabins
Pennsylvania-crafted modular log cabins blending traditional values with modern prefab construction — premier log cabin builder for the Northeast since 1997.
New Holland, Pennsylvania
Bob's Containers
Texas builder of custom shipping-container homes, ADUs and workspaces in 20- and 40-foot models, shipped anywhere in the US.
Austin, Texas
Wishbone Tiny Homes
Asheville builder of small homes on foundation, 200 to 2,000 sq ft, built to NC residential code for use as primary dwellings or ADUs.
Asheville, North Carolina
Tiny Homes Raleigh
From blueprint to backyard — stick-built custom tiny homes and ADUs across the Raleigh area.
Raleigh, North Carolina
Colorado Tiny Homes
Accessory dwellings, built for you — luxury and off-grid ADUs across the Colorado Rockies.
Denver, Colorado
About ADU Builders
Finding the right builder is essential for your project. Our adu builders directory features experienced professionals across the United States, each with their own specialties and approach.
Browse builder profiles to view portfolios, certifications, and contact information. Whether you need a custom build or a turnkey solution, connect directly with builders who understand your vision.
ADU Communities
Facebook groups for accessory dwelling unit builders and owners.
Third-party communities, not affiliated with Nomad Adjacent.
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