Best ADU Builders in Vancouver (2024)

Our annual ranking of top construction firms highlights the top companies in Vancouver based on their project volume over the past year, with a focus on relevance. This compilation is derived from permit and contractor information sourced from city, county, and state building departments through our partners at BuildZoom. For further information regarding data accuracy, please consult the note at the end of this article.

Construction data plays a vital role for different groups within the construction industry. Companies that supply materials and services to general contractors can use this data to better understand when contractors are most likely to need new resources. By keeping track of major project milestones, construction market trends, and business growth patterns, suppliers can time their outreach more effectively to ensure it aligns with contractors’ needs. This also helps them target contractors who are experiencing growth. Similarly, subcontractors can identify general contractors they want to partner with for upcoming projects. Additionally, real estate developers, property owners, and other stakeholders who require contractors can use construction analytics to assess the skills and reliability of contractors and subcontractors, ensuring they choose the right teams for their projects. Construction activity also offers insights into which contractors are involved in high-demand projects, helping stakeholders make informed decisions.

ARCIFORM LLC

Address:
2303 N Randolph Ave, Portland, OR 97227

ARCIFORM is a highly respected design-build firm based in Portland, Oregon, with over 25 years of experience in both residential and commercial projects. Founded in 1997, the company has earned a stellar reputation for its commitment to quality, integrity, and innovative design, specializing in historic preservation, home additions, and custom renovations. ARCIFORM’s team of skilled professionals takes pride in their ability to blend modern conveniences with the rich architectural history of each project, ensuring that each structure tells its unique story while meeting the highest standards of safety and comfort. Among their numerous accolades, ARCIFORM has received prestigious awards such as the 2021 DeMuro Award for Excellence in Historic Preservation for the restoration of the Caples House Museum, as well as the 2020 DeMuro Award for the Fried-Durkheimer House. The firm’s work has been featured in top design publications, including This Old House, Better Homes & Gardens, and Portland Monthly, showcasing their prominence in the industry. With a focus on building lasting client relationships, ARCIFORM’s culture is rooted in professionalism, trust, and a deep respect for the spaces they create. Whether it’s a small addition or a complete historic restoration, ARCIFORM’s attention to detail and dedication to client satisfaction have made them a go-to choice for those looking to preserve and enhance their homes and commercial properties.

The City of Vancouver Community Development Department provided data that the Home Builder Digest team reviewed to identify past projects by ARCIFORM LLC. One notable project took place in 2016, when ARCIFORM LLC converted a garage into an accessory dwelling unit, adding a new bedroom, bathroom, and kitchen. Additionally, in 2014, the company completed a new single-story addition to a single-family home.

Ziebart Construction

Address:
16869 SW 65th Ave, Lake Oswego, OR 97035

Ziebart Construction is a family-owned, boutique remodeling firm that has been serving homeowners in the Pacific Northwest for three generations. Specializing in mid-range design and remodel services, the company prides itself on delivering high-quality home improvements at affordable prices. Their mission is to ensure that every client feels at home by providing an enjoyable remodeling experience, from initial design to final installation and beyond. Ziebart Construction focuses on treating each client like family, upholding core values of integrity, transparency, and respect throughout every project. Their competitive advantage lies in offering luxury-grade design services at a fraction of the price of high-end firms, thanks to their in-house cabinet company, which produces custom wood cabinetry at nearly 75% off typical costs. The firm’s dedication to customer service is evident in its clear communication, fixed-price agreements, and exceptional client reviews. Ziebart Construction’s expertise includes remodeling kitchens, bathrooms, basements, and adding accessory dwelling units (ADUs), making them a trusted partner for homeowners looking to expand or enhance their living spaces. With a focus on creating spaces that reflect clients’ personal visions, Ziebart ensures that each project is completed with the highest level of craftsmanship and attention to detail. Whether it’s a basement conversion, kitchen remodel, or custom ADU, Ziebart’s team works tirelessly to turn any remodeling dream into reality while maintaining a culture rooted in family, faith, and fun.

The Home Builder Digest team reviewed data from the City of Vancouver Community Development Department to highlight past projects by Ziebart Construction. In 2005, the company completed a $55,000 project for a new single-family home, featuring three bedrooms and two and a half bathrooms. More recently, in 2023, Ziebart Construction worked on a detached accessory dwelling unit (ADU) project valued at $200,000.

EcoCraft LLC

Address:
4408 NE 38th Ave, Portland, OR 97211

Founded in 2012, EcoCraft is a Portland-based sustainable building company that specializes in creating custom homes, home additions, and Accessory Dwelling Units (ADUs). With over a decade of experience, EcoCraft has built a reputation for designing and constructing long-lasting, energy-efficient spaces using natural, non-toxic materials that promote both environmental sustainability and residents’ health. The company was founded by Edwin Hooker, whose passion for eco-friendly building practices grew from his experience in constructing high-end straw bale homes in Colorado and his firsthand knowledge of waste in conventional building processes. EcoCraft’s focus on sustainability extends beyond materials to include thoughtful design and energy-efficient features that enhance comfort and livability. The company has worked on numerous residential projects in Portland and Vancouver, including custom homes and ADUs that help families maximize their existing space, whether through basement conversions or new detached units. Known for a customer-centered approach, EcoCraft emphasizes communication, offering expert guidance to help clients navigate complex decisions and ensure their projects stay on budget. EcoCraft’s commitment to quality craftsmanship and integrity has earned them a loyal following, with clients appreciating their ability to balance aesthetic beauty with functionality. As a Certified Sustainable Building Advisor and member of the US Green Building Council, EcoCraft continues to lead the way in sustainable home building, proving that eco-friendly construction is not only good for the planet but also creates healthier, happier living spaces for homeowners.

Records from the City of Vancouver Community Development Department were reviewed by the Home Builder Digest team to uncover past projects completed by EcoCraft LLC. In 2018, EcoCraft LLC completed a project converting the second floor of a building into an accessory dwelling unit (ADU). The following year, in 2019, the company worked on an accessory dwelling unit project in a basement, which included the addition of a new common area and kitchen.

Stone Creek Building & Development Inc

Address:
502 7th St, Oregon City, OR 97045

Stone Creek Building, a trusted custom and luxury home builder based in Portland, Oregon, has been serving homeowners for over two decades with a commitment to quality, sustainability, and client satisfaction. Specializing in Earth Advantage certified homes, the company focuses on building sustainable, energy-efficient homes that are safer, more comfortable, and long-lasting. With over 100 years of combined experience in new home construction, Stone Creek’s team is known for its expertise in designing homes that perfectly match each client’s unique lifestyle, needs, and dreams. Led by second-generation builder Mark Beirwagen, Stone Creek takes pride in fostering long-term relationships with clients, believing that every project should add value to both the family and their investment. Stone Creek’s philosophy is rooted in integrity, aiming to earn referrals from every client through thoughtful service from the initial consultation to the final walkthrough. The company’s portfolio includes over 135 completed projects and 25 awards, showcasing its reputation for craftsmanship and attention to detail. In addition to custom home building, Stone Creek also offers services in remodeling, multi-family construction, ADU development, and land use permitting. Serving a wide range of areas including Portland, Beaverton, Tigard, Lake Oswego, and beyond, Stone Creek is committed to making each home building experience as seamless and enjoyable as possible. Whether you’re looking to design your dream kitchen or build a rural custom home on acreage, Stone Creek has the experience and expertise to bring your vision to life.

The City of Vancouver Community Development Department provided data that the Home Builder Digest team used to identify previous projects by Stone Creek Building & Development Inc. In 2024, the company completed a new detached ADU project, spanning 499 square feet, with a total project value of $150,000. Earlier, in 2016, Stone Creek Building & Development Inc. worked on another ADU, which featured one bedroom, one bathroom, and a covered porch.

Mooney Construction & Development LLC

Address:
3439 NE Sandy Blvd, Portland, OR 97232

Founded in 1996 by Joe Mooney, Mooney Construction and Development LLC has built a strong reputation for delivering exceptional remodeling services in Portland, Oregon, with a special focus on historic homes. With over 25 years of experience, Joe began his career in Chicago, where he honed his skills restoring duplexes in sought-after neighborhoods like Lincoln Park and Wrigleyville. His passion for preserving the integrity and style of older homes led him to Portland, where he continued to specialize in remodeling historic properties. Joe is not only a Certified Aging-in-Place Specialist (CAPS) but also a Certified Lead Renovator with extensive training in eco-friendly building practices. Alongside Joe, Bill Stanley, the Project Manager, brings his fine finish expertise from his own remodeling business and shares Joe’s dedication to preserving the charm of older homes. Together, they ensure that every project—whether it’s a kitchen remodel, basement conversion, or whole-house renovation—exceeds client expectations. Mooney Construction prides itself on a team of highly skilled subcontractors, all licensed, bonded, and insured, who work closely with Joe to bring each project to life with attention to detail. The company’s portfolio spans a wide range of styles, from classic renovations to new construction, always tailored to meet the unique needs of each client. Joe’s hands-on approach, from initial bid to project completion, ensures clients receive personalized service throughout the remodeling process. With nearly two decades of expertise, Mooney Construction is known for its ability to balance quality craftsmanship with budget, making Joe’s firm a trusted choice for homeowners in Portland and beyond.

The Home Builder Digest team reviewed data from the City of Vancouver Community Development Department, which highlighted previous projects by Mooney Construction & Development LLC. In 2021, the company completed an addition to a detached garage, converting it into a two-story accessory dwelling unit (ADU) with a garage on the first level. Additionally, in 2016, Mooney Construction & Development LLC undertook a $164,469 project, which involved expanding a property with the addition of a 613-square-foot attached garage and 851 square feet of living space. This remodel included the creation of a new bedroom, a full bathroom, and updates to the kitchen and laundry room.

Absolute Construction Services LLC

Address:
4529 SE Powell Butte Pkwy, Portland, OR 97236

Absolute Construction Services, LLC is a family-owned, local business known for its expert craftsmanship and commitment to customer satisfaction. With years of hands-on experience in carpentry and construction, they offer a wide range of services, from basement finishing and room additions to roofing and painting. The company prides itself on clear communication, fair pricing, and delivering high-quality results for every project, big or small.

Data from the City of Vancouver Community Development Department also highlighted past projects completed by Absolute Construction Services LLC. In 2024, the company worked on a $250,000 project, building a 432-square-foot detached ADU with one bedroom, one bathroom, kitchen, living room, laundry area, and a rooftop patio accessible from the house deck. Another notable project took place in 2021, where Absolute Construction Services LLC converted a 1,289-square-foot basement into a two-bedroom, one-bath ADU.

Note: The data used to compile this list may not be complete based on the availability of permit data – collecting and consolidating this data is a time-intensive and difficult task. It may not be complete in all areas due to jurisdictional reporting requirements and the availability of data. Job values and permit fees should be taken as estimates rather than exact values, based on the most complete permit and contractor data available. Additionally, number of projects and typical job size may be updated per contractor request.

The time period for the data used for this ranking was the past 365 days, plus an additional 45 days to account for the average timeline of a building permit. If you have any suggestions on the data or see any corrections that you’d like to give feedback on, please fill out this form. For more insights on construction data outside that are not directly related to contractors, there are other resources available as well.