Seattle ADU is a Seattle-based contractor specializing in accessory dwelling units, including detached ADUs, garage conversions, attached ADUs, and JADUs. They manage design, permitting, and construction for homeowners seeking additional living space.

About Seattle ADU

Seattle ADU is a contractor based in the Seattle area that specializes in the design and construction of accessory dwelling units. As an experienced ADU builder, they work with homeowners who are looking to add additional living space to their property, whether that means building a detached ADU in the backyard, converting an existing garage, or creating an in-law suite within or adjacent to the main home.

Their focus is specifically on ADU projects, which means their process and expertise are centered around the unique requirements that come with this type of construction. From navigating local permitting and zoning regulations to managing the build from start to finish, Seattle ADU handles the various stages involved in bringing an accessory dwelling unit to life.

ADU Services in the Seattle Area

As a dedicated ADU contractor, Seattle ADU works on a range of project types. These include:

  1. Detached ADU construction – building a separate backyard cottage or standalone unit on the property
  2. Garage conversion – transforming an existing garage into a livable accessory dwelling unit
  3. Attached ADUs – adding a connected unit to the existing home structure
  4. Junior ADUs (JADUs) – smaller units created within the existing footprint of the home

Each of these project types comes with its own set of considerations, including structural requirements, utility connections, and compliance with local building codes. Seattle ADU works through these details as part of their standard process.

Working With Seattle ADU

Homeowners who work with Seattle ADU can expect a contractor that focuses exclusively on accessory dwelling units rather than general construction. This specialization means they are familiar with the specific challenges that ADU projects present in the Seattle market, including city permitting processes and site-specific constraints.

They work with clients through the planning and design phase as well as the construction phase, aiming to provide a more streamlined experience for homeowners who may be unfamiliar with what an ADU project involves. Their role as both designer and builder means fewer handoffs between separate parties during the project.

Whether a homeowner is considering a granny flat for an aging family member, a backyard cottage for rental income, or an in-law suite for extended family, Seattle ADU positions itself as a contractor equipped to handle these types of builds in the greater Seattle area.

For those exploring ADU construction in Seattle, Seattle ADU represents a contractor option that is focused specifically on this type of residential project rather than offering it as one service among many.

Seattle ADU Reviews

Lauren Soto

2026-02-18
"Outstanding project management made our commercial renovation go much smoother than we anticipated. They worked around our business hours so we didn't have to close for even a single day. Their respect for our operations was greatly appreciated."

Katherine Knight

2026-02-14
"After replacing the air ducts and making improvements to the attic, the airflow and temperatures were more balanced. The home is now more comfortable, quieter, and uses less energy."

Nicole Reed

2026-01-20
"Our living room remodel was exactly what we wanted. The team was professional, listened to our needs, and delivered a beautiful, functional space."

Kenneth Jones

2026-01-11
"The redesigned kitchen blends modern style with everyday practicality. Cabinets, countertops, and lighting were installed perfectly, creating a space ideal for cooking and gathering."

Phaedra Zeigler

2026-01-10
"Renovating the bathroom improved both function and appearance. Thoughtful design, clean tile work, and modern fixtures made the space feel brand new."

Opening hours

Monday 8:00AM - 5:00PM
Tuesday 8:00AM - 5:00PM
Wednesday 8:00AM - 5:00PM
Thursday 8:00AM - 5:00PM
Friday 8:00AM - 5:00PM
Saturday -
Sunday -

Location

Did we help?

Please let Seattle ADU know that you found them on Top ADU Pros to allow us to continue helping others find the best adu contractors.

get in contact