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107 S Main St. Coupeville, WA 98239

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(360) 969-2363

To make simple to build, proven zero-energy home plans available to mainstream builders world-wide.

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Seattle Prime 1915


Members of our new line-up of Positive NRG Homes™, the Seattle Prime plans are examples of how our plans can either be “dressed up” or “stripped down”, depending on the owners needs and budget. The Seattle Prime 1915 plan on this page is the stripped down version, with a minimally sized covered entry, but with two bedrooms and a den upstairs. The den could easily become a fourth bedroom, or could be used as a family room. Either plan has enough south-facing roof area to support over 11.4 kW of solar panels, or a solar hot water heater and 10 kW of PV. Either way, this 1,955 square foot home will be WAY below net zero-energy in most climate zones.  Completed in the Ballard neighborhood of Seattle, WA, back in 2011, this house was calculated to be able to power a Nissan Leaf electric car for more than 9,000 miles per year. In it’s first full year of operation, the MB-2 home exceeded our calculations, and went below net-zero-energy by over 2,500 Kwh, with just 6.44Kw of the planned 9.8 Kw of PV on the roof!

For more information on this outstanding home, please see the case study done by Built Green® of King & Shohomish Counties Builders Association,

We also have an Arctic Version of this plan available, designed to handle temperatures as low as -60˚F!

Our Seattle Prime 1915 plan was awarded the 2012 National Green Building Award for Concept & Research, our third such award in the last four years!



Additional information

Plan Option

Basic Plan Set, Full Building Set


Upper Mid-Western United States


South Eastern United States

Foard Panel

North Eastern United States

Premier Sips

Western United States

Acme Panel








Nemetschek Group


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