ADU Builders
Abodu
One-stop-shop prefabricated ADU solutions from design to installation
Abodu is a leading prefabricated Accessory Dwelling Unit (ADU) builder serving California and Washington. As a true one-stop shop, we handle the entire ADU process from start to finish, including permitting, construction, delivery, and installation. Our factory-built ADUs offer exceptional quality control, faster construction timelines, and predictable pricing. Each Abodu unit is designed with modern aesthetics and thoughtful layouts that maximize livable space while maintaining the character of your neighborhood. With installations in over 50 cities across California and expanding service in Washington, Abodu has become one of the most trusted names in the ADU industry. We serve the greater San Francisco Bay Area, Southern California, and the Pacific Northwest. Our streamlined process means you get a beautiful, permitted ADU on your property with minimal hassle. From initial consultation through final installation, our team manages every detail so you can focus on enjoying your new space.
Backyard Unlimited
Amish-crafted custom sheds, ADUs, and backyard structures
Backyard Unlimited is a family-owned California business specializing in custom, Amish-built prefabricated backyard structures. Since 2009, we've partnered with master Amish craftsmen from Pennsylvania to deliver exceptional quality sheds, ADUs, garages, gazebos, and outdoor structures throughout California. Founded by Nathan Martin, our company combines traditional Amish craftsmanship with modern design and delivery services. Each structure is built with meticulous attention to detail using time-honored construction techniques that ensure durability and beauty. Our product range includes storage sheds, accessory dwelling units (ADUs), custom garages, gazebos, pergolas, and outdoor furniture. Every piece is constructed offsite in our partnership with Amish builders, then delivered and professionally installed by our own crews throughout California. Based in Rocklin near Sacramento, we maintain a showroom where customers can see our structures in person and customize their orders. We serve the greater Sacramento area, San Francisco Bay Area, Silicon Valley, and have completed projects throughout California including Los Angeles and San Diego. Whether you need additional storage, a backyard office, a guest house ADU, or a beautiful gazebo for entertaining, Backyard Unlimited delivers superior craftsmanship with the convenience of professional installation. Our structures are built to last generations, combining traditional quality with modern functionality.
Bay Area ADU Pros
Premium ADUs for the Modern Bay Area
Bay Area ADU Pros specializes in high-end, sustainable ADU construction throughout the San Francisco Bay Area. With over 15 years of experience in residential construction, our team brings expertise, quality craftsmanship, and innovative design to every project. We handle every aspect of your ADU project from initial design and permitting through final construction and inspection. Our streamlined process ensures your project stays on schedule and within budget while meeting the highest standards of quality. Specialties include: - Custom detached ADUs - Garage conversions - Green building and sustainable materials - Modern architectural design - Full-service project management Licensed, bonded, and insured. California Contractor License #12345678.
Boxabl
Revolutionary folding modular homes installed in less than a day
Boxabl is a pioneering housing technology company that mass-produces innovative modular homes designed to fold for efficient transport and rapid installation. Our flagship Casita model can be installed on-site in less than a day, offering a revolutionary approach to ADU construction. Built in our state-of-the-art factory using non-combustible, fire, water, and mold-resistant materials, Boxabl homes deliver exceptional durability and quality. Our patented folding technology allows full-size homes to be shipped efficiently and set up quickly with minimal site disruption. We serve customers through a network of over 80 authorized dealers across multiple states, including Arizona, California, New Mexico, Utah, Wyoming, Oklahoma, Hawaii, Kansas, West Virginia, Vermont, and Oregon. Our dealer network handles site visits, permitting assistance, and installation coordination. Model homes are available for touring in North Las Vegas, Nevada, and several locations throughout California. Our Casita units offer 375 square feet of thoughtfully designed living space with full kitchen, bathroom, and living areas - perfect for ADUs, guest houses, or rental properties. Boxabl represents the future of housing construction: factory-built precision, rapid installation, and exceptional quality at an accessible price point.
Demo ADU Builders Inc
Building Dreams, One ADU at a Time
Your trusted partner for quality ADU construction in California. We specialize in detached ADUs, garage conversions, and basement apartments.
Green Canopy NODE
Carbon-negative homes built with mass timber and innovation
Green Canopy NODE is an integrated construction technology, real estate development, and fund management company revolutionizing sustainable homebuilding in the Pacific Northwest. Formed through the merger of Green Canopy and NODE in November 2021, we combine decades of experience in sustainable development with cutting-edge prefab technology. Recognized as a top GreenTech company by TIME and Statista in 2024, we specialize in building all-electric, deep-green, and net-zero-energy-ready homes using mass timber and prefabricated building kits. Our offsite manufacturing approach significantly accelerates construction timelines while maintaining superior quality and sustainability standards. Our homes are designed to be carbon-negative, actually removing more carbon from the atmosphere than they produce. We utilize sustainably harvested mass timber, advanced building science, and highly efficient building systems to create homes that are better for people and the planet. Beyond building our own residential projects, Green Canopy NODE provides construction technology services to other developers, offering our Building Kits for multi-unit homes and apartments. This helps scale sustainable construction practices across the industry, providing greater cost control and quality assurance. Based in Seattle with operations in Portland and Spokane, we're expanding our deep-green building approach throughout the Pacific Northwest and planning expansion to the Southeast US. Whether you're a homebuyer seeking a sustainable residence or a developer looking for innovative construction solutions, Green Canopy NODE delivers regenerative building practices that help communities and environments thrive.
Irontown Homes
High-end custom modular homes with 40+ years of experience
Irontown Homes (also known as Irontown Modular) brings over 40 years of experience and 10,000+ modular units to the Western United States. As one of the region's premier modular builders, we specialize in highly custom, high-end residential and commercial construction. Our state-of-the-art factory near Salt Lake City builds modules up to 95% complete in a controlled environment before transporting them for final site assembly. This approach minimizes weather delays, reduces waste, and ensures superior quality control throughout the construction process. We handle the entire process from initial design and engineering through transportation and final installation. Whether you're working with your own architect or choosing from our pre-designed floor plans, our team ensures your vision becomes reality. Known for green building practices and energy-efficient materials, Irontown builds everything from custom residential homes to commercial buildings including motels and schools. Our ADU and Park Model offerings are available nationwide (excluding Washington State), while our full residential construction serves the Western US. With factory-controlled construction, experienced set crews, and comprehensive project management, Irontown Homes delivers the quality and customization of traditional construction with the efficiency and sustainability of modular building.
LA Backyard Homes
Affordable Quality ADUs in Los Angeles
LA Backyard Homes makes ADU construction accessible and affordable without compromising on quality. Serving Los Angeles and surrounding communities, we specialize in creating beautiful, functional accessory dwelling units that add value to your property and provide flexible living space. Our mission is to help homeowners navigate the ADU process with confidence. We handle all permits, work with local municipalities, and manage every detail from design to completion. With transparent pricing and clear communication, you'll always know where your project stands. What we offer: - Pre-designed ADU packages (save time and money) - Custom design options - Garage conversion specialists - Junior ADU expertise - Transparent fixed-price contracts - Full permit management Family-owned and operated since 2015. Licensed, bonded, and insured.
Mighty Buildings
Revolutionary 3D-printed Zero Net Energy homes
Mighty Buildings is a pioneering construction technology company revolutionizing homebuilding through advanced 3D printing, robotics, and sustainable materials. As a leader in offsite construction innovation, we manufacture Zero Net Energy (ZNE) homes and ADUs using our proprietary Mighty Wall System and Light Stone Material. Our factory-built approach combines cutting-edge automation with sustainable building practices to create high-quality, energy-efficient homes. Each unit is precisely manufactured in our Oakland, California facility using 3D printing technology, ensuring consistency, quality control, and reduced construction waste. We specialize in producing wall systems offsite that are then transported and assembled on-site, dramatically reducing construction time while maintaining superior quality standards. Our homes are designed to be carbon-neutral or carbon-negative, incorporating energy-efficient systems and sustainable materials throughout. Mighty Buildings serves the California market with a focus on the San Francisco Bay Area, Los Angeles, San Diego, and other major metropolitan regions. We're also developing entire communities of 3D-printed sustainable homes, demonstrating the scalability of our technology. With additional manufacturing capacity in Monterrey, Mexico, and international expansion to Saudi Arabia and the UAE, Mighty Buildings is leading the global transformation of residential construction through technology and sustainability.
Nest Tiny Homes
Year-round ADU and tiny home construction throughout Northern Utah
Nest Tiny Homes specializes in designing and building Accessory Dwelling Units and tiny homes throughout Northern Utah. Associated with the ADU Utah portal, we've become the go-to resource for homeowners seeking quality ADU construction in the Salt Lake City region. We offer both custom stick-built and factory-built modular options, providing flexibility to meet your specific needs and budget. Our pre- designed models include the Skylight 640 and other factory-built units manufactured right here in Utah. Our comprehensive design-build approach means we handle everything from initial design and permitting through final construction and inspection. Whether you're building ground-up or converting an existing garage, we ensure full compliance with Utah building codes and work exclusively on permanent foundations. We build year-round, maintaining consistent project timelines regardless of weather conditions. Our team operates throughout Davis, Weber, and Utah Counties, bringing expertise in local regulations and site-specific challenges that come with Northern Utah construction. With active projects across the Salt Lake City area, we've established a reputation for quality craftsmanship, reliable timelines, and seamless project management from concept to completion.
Samara
High-quality Backyard ADUs from Airbnb's design innovation lab
Samara is a pioneering prefab ADU builder that emerged from Airbnb's design and innovation lab in 2016, founded by Airbnb co-founder Joe Gebbia. Spun out as an independent company in 2022, we've set a new benchmark for efficiency and quality in prefabricated housing. Our signature "Backyard" product line offers studio, 1-bedroom, and 2-bedroom ADU models ranging from 450 to 1,200 square feet. Each unit is manufactured in our dedicated factory in Mexico, ensuring consistent quality control and faster production timelines than traditional construction. Samara provides complete turnkey service that handles every aspect of your ADU project: design, permitting, manufacturing, installation, and even financing options. We work directly with local municipalities throughout California to navigate the permitting process efficiently, making the entire experience seamless for homeowners. Our ADUs are designed with fire-resistant materials and construction techniques, particularly important for California properties. We've partnered with the Steadfast LA Foundation to donate homes to wildfire victims, demonstrating our commitment to both innovation and community support. With recent Series B funding of $34 million (September 2025) and acquisition of manufacturing facilities, Samara is rapidly scaling to meet California's growing demand for housing density solutions. Our Redwood City headquarters and showroom welcomes visitors to experience our designs firsthand. Serving the San Francisco Bay Area, Los Angeles, San Diego, and Santa Barbara, Samara combines Airbnb's design excellence with practical housing solutions. Whether you're seeking rental income, multi-generational housing, or addressing California's housing crisis, our Backyard ADUs deliver quality, speed, and comprehensive service from concept to completion.
SoCal ADU Specialists
Your Southern California ADU Experts
SoCal ADU Specialists is your trusted partner for accessory dwelling unit design and construction throughout Southern California. We bring together architectural excellence, construction expertise, and deep knowledge of local building codes to deliver ADUs that enhance your property and lifestyle. From San Diego to Los Angeles, we've completed over 200 ADU projects ranging from compact studios to spacious two-bedroom homes. Our in-house architects and builders work as one team to ensure seamless execution from concept through completion. Our services include: - Full-service design-build - Architectural and engineering services - Permit expediting - Detached and attached ADUs - Prefab and modular options - Aging-in-place designs - Rental-ready units We pride ourselves on communication, craftsmanship, and delivering projects on time and on budget. Let us help you unlock the potential of your property.
Studio Shed
Modern prefab backyard studios, ADUs, and home offices nationwide
Studio Shed is a leading manufacturer of prefabricated, panelized backyard structures and ADUs, serving all 50 U.S. states and select locations in Canada. Since our founding in Boulder, Colorado in 2008, we've been innovating in the prefab space with modern, sustainable designs. Our unique kit-of-parts system arrives as a flat-packed, panelized kit that can be assembled by DIY-savvy homeowners or installed by our network of professional builders. This flexibility gives you control over your project timeline and budget while ensuring quality craftsmanship. All Studio Shed products are built and shipped from our factory in Colorado, ensuring consistent quality control and sustainable manufacturing practices. Our StudioHOME ADU line offers fully-permitted dwelling units with modern aesthetics and efficient layouts designed for comfortable living. Our streamlined online design process lets you configure and visualize your structure before ordering. Choose from various sizes, layouts, and finish options to create the perfect backyard studio, home office, gym, or ADU for your property. With 15+ years in business and nationwide service, Studio Shed has become synonymous with quality prefab backyard structures. We offer a one-year warranty on materials and workmanship, backed by our commitment to customer satisfaction and innovative design. Whether you're in Northern California, Colorado, or anywhere across America, Studio Shed delivers modern, functional spaces that enhance your property and lifestyle.
Utah Structures
Custom sheds, cabins, and tiny homes with Amish-inspired craftsmanship
Utah Structures operates as part of the Montana Shed Center network, bringing quality prefab buildings throughout the Mountain West region. With over 50 sales locations across six states, we specialize in custom storage sheds, garages, cabins, tiny homes, and small ADUs. Our structures are pre-built in our factory using Amish-influenced craftsmanship techniques, ensuring superior quality and attention to detail. From simple storage solutions to fully livable tiny homes and ADUs, we offer highly customizable designs built to your specifications. We handle the complete process including design consultation, factory construction, delivery, and installation. Our controlled manufacturing environment ensures consistent quality and weather-independent production schedules. Popular options include greenhouses, animal shelters, custom garages, and cabin-style living spaces. We offer flexible rent-to-own financing to make your project more accessible, and our experienced delivery crews ensure professional installation at your site. With headquarters in Great Falls, Montana and our Utah location in the Farr West/Ogden area, we serve Montana, Wyoming, Idaho, Utah, South Dakota, and Nebraska. Whether you need storage, workspace, or additional living space, our custom-built structures combine affordability with quality craftsmanship.