ADU Contractor · Seattle, WA

Seattle ADUs: Built by Neighbors, For Neighbors

Seattle ADU Solutions builds a custom ADU for properties in Seattle, WA. A custom ADU adds extra living space and property value right here in Seattle. Homeowners in Seattle choose a custom ADU for rental income, family members, or extra storage space. Seattle ADU Solutions provides custom ADU construction services for homes in Seattle, WA.

Get a Free Quote 206-208-7461
Locally Owned
Right Here in Seattle
Licensed & Insured
For Your Security
Free Consultations
No-Obligation Talk
Community Focus
Neighbors Helping Neighbors
ADU Contractor Experts

Your Seattle ADU Journey, With Us

Seattle ADU Solutions is a local contractor based right here in Seattle, Washington. Seattle ADU Solutions has helped many homeowners across neighborhoods from Ballard to Beacon Hill build an Accessory Dwelling Unit. Building an Accessory Dwelling Unit requires a deep knowledge of the Seattle building codes and the distinct character of each local area. The process of building an Accessory Dwelling Unit starts when our team sits down with homeowners to listen to their vision for their property, whether the Accessory Dwelling Unit is for family members, rental income, or a quiet backyard retreat. Seattle ADU Solutions handles every part of the project, from navigating the Seattle permitting process to completing the final touches on the Accessory Dwelling Unit. Homeowners can expect clear communication and steady progress throughout the construction, making sure the new Accessory Dwelling Unit fits perfectly into your property and the local Seattle landscape.

206-208-7461

Get a Free Quote

Tell us about your project and we'll be in touch within 24 hours.

What We Do

Our ADU Contractor Services

01

Attached ADU

Attached ADU

Attached ADU construction involves adding a complete living unit directly to your existing home, sharing at least one wall. Attached ADU construction creates valuable extra space for family members or rental income right on your property in Seattle, Washington. For homeowners in Seattle, Seattle ADU Solutions is here for all your Attached ADU needs.

VIEW SERVICE →
02

Detached ADU

Detached ADU

A Detached ADU creates a completely separate living space on your property in Seattle. Seattle ADU Solutions builds a Detached ADU to offer privacy and flexibility for family, renters, or a dedicated home office. A well-planned Detached ADU can significantly boost your property value and provide a steady income stream for homeowners in Seattle.

VIEW SERVICE →
03

Garage Conversion

Garage Conversion

Seattle ADU Solutions helps property owners complete a Garage Conversion to change an existing garage into a fully functional living space. A Garage Conversion can be designed as a separate apartment, a private home office, or a creative studio. When we perform a Garage Conversion, we turn underused parking areas into finished rooms. A well-planned Garage Conversion adds valuable square footage and boosts the utility of your property right here in Seattle, Washington.

VIEW SERVICE →
04

ADU Permitting

ADU Permitting

Seattle ADU Solutions provides ADU Permitting for property owners in Seattle, Washington. ADU Permitting in Seattle includes navigating local zoning regulations, preparing detailed architectural plans, and submitting all necessary applications to the Seattle Department of Construction and Inspections. Seattle ADU Solutions handles all of the paperwork and the project coordination so your ADU project can move forward without delays. We make sure that you are kept informed during every phase of ADU Permitting. For homes and businesses in Seattle, Seattle ADU Solutions is here for all your ADU Permitting needs.

VIEW SERVICE →
05

ADU Design

ADU Design

ADU Design involves creating detailed architectural plans and blueprints for your new backyard cottage or attached living space in Seattle. Seattle ADU Solutions focuses on ADU Design to make sure every project meets Seattle zoning rules and local building codes. Proper ADU Design also matches the style and layout of your existing home in Seattle.

VIEW SERVICE →
06

ADU Engineering

ADU Engineering

ADU Engineering involves creating the structural and civil plans needed for your Accessory Dwelling Unit. Seattle ADU Solutions makes sure every Accessory Dwelling Unit meets all Seattle building codes. These building codes cover structural loads, seismic requirements, and foundation details. ADU Engineering is an important step that makes sure your Accessory Dwelling Unit is safe, structurally sound, and ready for construction in the Seattle environment. For homeowners in Seattle, proper planning helps your Accessory Dwelling Unit project move forward without delays.

VIEW SERVICE →
07

ADU Financing

ADU Financing

Seattle ADU Solutions provides ADU Financing to help homeowners in Seattle secure the funds needed to build an Accessory Dwelling Unit. ADU Financing covers all parts of the project, including architectural design, local permitting, and actual construction costs. When homeowners use ADU Financing for their property in Seattle, they can add real value to their property and create new income streams or extra living spaces right in their neighborhood. The financial process makes sure that the money is ready before any physical work begins on the site. For homeowners in Seattle, WA, ADU Financing is a practical way to manage the financial requirements of building an Accessory Dwelling Unit.

VIEW SERVICE →
08

ADU Construction Management

ADU Construction Management

ADU Construction Management involves overseeing every detail of your Accessory Dwelling Unit project, from initial permits to final touches. Seattle ADU Solutions makes sure your ADU build stays on track, on budget, and meets all Seattle regulations, giving you a straightforward journey to your new space.

VIEW SERVICE →
09

Junior ADU (JADU)

Junior ADU (JADU)

A Junior ADU conversion involves taking an existing bedroom or a portion of space within your main home and turning it into a separate living unit. Seattle ADU Solutions builds these separate spaces complete with a kitchen and a bathroom. A Junior ADU creates an independent living area right here in Seattle. This setup is very useful for family members, long-term renters, or visiting guests. Seattle ADU Solutions provides Junior ADU services for homes in Seattle, Washington.

VIEW SERVICE →
10

ADU Site Assessment

ADU Site Assessment

An ADU Site Assessment from Seattle ADU Solutions evaluates your property for an Accessory Dwelling Unit in Seattle, WA. The Seattle ADU Solutions team evaluates zoning, utilities, and site conditions during every ADU Site Assessment. This initial step helps you understand the feasibility and estimated scope of your ADU project right here in Seattle. Seattle ADU Solutions provides ADU Site Assessment services for homes in Seattle, WA.

VIEW SERVICE →

Seattle's Local ADU Contractor Experts

Seattle ADU Solutions is proud to serve Seattle, WA and the surrounding communities. Our reputation is built on honest work, clear communication, and results that hold up over time.

Facebook
5/5 Customer Rating
Google
5/5 Customer Rating
LinkedIn
5/5 Customer Rating
FAQ

Frequently Asked Questions

An ADU, or Accessory Dwelling Unit, is a secondary housing unit on a single-family lot, and these units are very popular in Seattle because they provide flexible living space and can help address our city housing needs. They can be detached (D-ADU), like a backyard cottage, or attached (A-ADU), such as a basement apartment. Seattle zoning changes have made it easier for homeowners to build ADUs, offering opportunities for rental income, multi-generational living, or extra space without needing to move. Seattle ADU Solutions provides ADU Construction services for homes in Seattle, WA.
Building an ADU in Seattle typically takes between 12 to 18 months from initial design to final occupancy, though this can vary. The permitting phase with the Seattle Department of Construction & Inspections (SDCI) usually takes several months, followed by the actual construction. Factors like the complexity of the design, site conditions, especially on our hilly terrain in Seattle, and current city review times can influence the overall timeline. Seattle ADU Solutions works to keep the process moving for homeowners in Seattle.
The average costs for an ADU project in Seattle generally range from $200,000 to $400,000, depending on size, finishes, and site preparation. Smaller, simpler units or garage conversions might be on the lower end, while larger, custom-built detached units with high-end finishes can be more. These costs include design, permitting fees, materials, and labor. Seattle ADU Solutions provides detailed estimates tailored to your specific project and property in Seattle, Washington.
Yes, you absolutely need special permits from the Seattle Department of Construction & Inspections (SDCI) to build an ADU in Seattle. This includes a building permit, and potentially plumbing, mechanical, and electrical permits. Seattle has specific zoning regulations regarding ADU size, height, setbacks, and parking requirements. Seattle ADU Solutions helps you navigate this entire permitting process, making sure your project meets all local codes and moves forward without unnecessary delays.
ADU Construction is one of the most effective ways to add value to a home in Seattle, WA. Building an ADU increases usable living space and provides potential rental income for property owners. In the Seattle housing market, properties with an ADU often command higher prices because of their versatility. Whether you need a space for a long-term tenant, a short-term rental for visitors exploring Seattle, or a private space for family members, ADU Construction offers financial benefits and enhances property appeal. Seattle ADU Solutions builds every ADU to match the specific needs of homeowners. Seattle ADU Solutions provides ADU Construction services for homes in Seattle, WA.

Proudly Serving Seattle and the Surrounding Area

From Seattle to the surrounding communities, we bring the same level of care and craftsmanship to every job — whether it's a quick repair or a full project.

Get Started Today

Let's Build Your Seattle ADU Together

Homeowners in Seattle, WA can contact Seattle ADU Solutions to schedule a consultation for ADU Construction, a backyard cottage, or a basement apartment. Seattle ADU Solutions provides these initial meetings at no cost. Property owners in Seattle are welcome to reach out to our team to discuss project requirements, floor plans, and zoning rules.

Get Your Free Quote 206-208-7461