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Seattle’s List of Pre-Approved Tiny and Small House Plans


If you’re looking to build a detached accessory dwelling unit in Seattle, the city has a list of pre-approved construction plans. This can streamline the permitting process, as all you need to do is pick a plan and connect with the designer.

There are plans available in various sizes, from 288 square feet to 1000 square feet. And there are a variety of designs to choose from, so you can find one that fits your needs and taste.

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Browse the City’s Growing Catalog of Pre-Approved DADU Small Cottage Plans

The Cedar Cottage by CAST Architecture

The Schooner by Fivedot Architects

The Family by Ahouse Studio

Urban Cottage Prefab by Urban Cottage Seattle

Seattle DADU by Artisans Group

The Sky House by Yes Architecture

MOA Family ADU by Mobile Office Architects

Edge House by Bohlin Cywinski Jackson

008 Edge House by BCJ

Image via BCJ | ADUniverse

Willow Creek DADU by Shape Architecture

Abodu DADUs

Abodu

Image via Abodu | ADUniverse

Abodu Studio

L&I_Abodu_Studio

Image via Abodu | Studio | ADUniverse

Abodu One

L&I_Abodu_One

Image via Abodu | One | ADUniverse

Abodu Two

L&I_Abodu_Two

Image via Abodu | Two | ADUniverse

Explore over 100 other tiny and small house designs that were submitted to Seattle’s ADUniverse. Take a look at the city’s catalog of pre-approved plans and see if one is right for you. Learn more below!

Learn more

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Alex

Alex is a contributor and editor for TinyHouseTalk.com and the always free Tiny House Newsletter. He has a passion for exploring and sharing tiny homes (from yurts and RVs to tiny cabins and cottages) and inspiring simple living stories. We invite you to send in your story and tiny home photos too so we can re-share and inspire others towards a simple life too. Thank you!
{ 3 comments… add one }
  • LargeMarge
    September 13, 2022, 6:42 pm

    Dear Seattle bureaucrats,
    What Is the difference between ‘pre-approved’ and regular approved?

    • James D.
      September 13, 2022, 7:38 pm

      Pretty sure no one in Seattle’s government is going to answer but it’s safe to say the answer is Verification! Same as loans, mortgages, credit card offers, etc. when that language is used. One notes clearance to start the process and the other is the final confirmation that makes it official. In other words the bureaucracy is expedited but you still have to go through the process…

  • e.a.f.
    September 15, 2022, 8:15 pm

    Like the idea of pre approved plans. Anything to speed up the process works for me. Lets hope other cities and towns do something similar. It takes a very long time to get plan approval in many cities.

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