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DADU Kits Available in Seattle Only

Build a DADU

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Thinking of Building a DADU?

With the recent changes to Seattle’s housing ordinances, it’s easier than ever to put a DADU on your property. But, it’s still easier said than done! First, you’ll need to figure out whether your property can accommodate a DADU. Then, there’s the design and construction process.

Urban Cottage has the expertise to walk you through every step of this process. Whether you’re in the beginning stages or need advice on an existing project, our team is ready to jump right in.

Check Your Build Eligibility

Buy A Plan Drawing

We make the build process efficient and easy. Urban Cottage sells pre-approved plan drawings. Learn more to get started.

See Our Plan Drawings

Order Your Move-in Ready Cottage

Our clients share a similar goal – to find a cost-effective construction team to build their cottage. We have selected Haas Development & Construction as our exclusive recommended builder.

When you work with Haas, your cottage can be completed move-in ready or partner alongside them to complete portions of your cottage build. When you work with the team at Haas – they will work with you to find the best approach for your DADU build.

Models & Pricing

The Urban Cottage System


From permit application to real estate transactions, Urban Cottage has the resources and expertise to help you realize your perfect accessory dwelling unit (ADU). We’re here for you every step of the way!

#1  Purchase Rights to Pre-approved ADU Drawing

Selected by the City of Seattle from a pool of more than 160 design submissions, Urban Cottage is proud to be one of only ten businesses in Seattle to offer pre-approved plans for detached accessory dwelling units, or DADUs, on the city website. Standard plans for each of the four pre-approved prefabs can be purchased by submitting the form below.

Browse Our Pre-Approved Plans

#2  Work with our Recommended Architect to Complete Your Building Permit Submittal

Though all our plans come pre-approved, the city requires you to submit additional site-specific information on how your DADU will fit on your lot. We partner with WOOD studio — a local architectural firm that specializes in urban residential design — to prepare and add the required site plan to our pre-approved drawings and assist you throughout the permit submittal process.

#3  Apply for a Permit with the City of Seattle

Building a DADU on your property requires a construction permit from the city. With a pre-approved drawing from Urban Cottage, the city has already approved most of the review criteria, effectively expediting the permit process and reducing the associated fees. You can receive your construction permit at a lower cost in just a few weeks!

#4  Work with Haas to Build Your Cottage – the way you Want it!

To turn your plans into reality, Urban Cottage is pleased to recommend Haas Development & Construction to build your cottage to whatever level of finish and completion you desire. Haas has successfully completed several detached accessory dwelling units, or DADUs, for Urban Cottage clients. They are skilled at doing these smaller projects cost effectively with a keen awareness of client concerns about construction in your backyard. Haas can work with you from day one to make sure your Cottage meets your expectations of both budget and finishes.

Please contact us for more information on exactly what is included in packages and pricing for each floor plan.

Learn More About Haas

#5  Condominiumize Your DADU or Sell Your Home

If you ever decide to sell your home or condominiumize your backyard cottage, Urban Cottage’s team of licensed real estate brokers can communicate and promote the worth of your home most effectively as your ADU real estate agency. ADUs are our speciality: Gary Olmeim, the founder of Urban Cottage, is one of the only Certified ADU Specialists in the Seattle area.

Learn More About ADU Real Estate

Get a Free Estimate

Give us a call at 206-494-3369 or Fill out the form below to get started.

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