Scroll through the photos below. NK Architects’ Brandon Nicholson discusses his approach to scaling up Passive House principles here.

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Using just a fraction of the energy of a typical three-story home, Park Passive remains at a comfortable temperature year-round thanks to tightly sealed, high-performance windows.

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Windows throughout the stairwell offer views of Seattle’s Madison Park neighborhood. The placement of the stair coincides with an operable skylight that allows for stack ventilation, further reducing energy use.

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The second-story play area is opened to the first-floor living spaces. Although energy dominates the Passive House conversation, its strategies also create an indoor environment full of fresh air, natural light, and healthful materials.

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The size of the kitchen hints at the home’s shallow floor plate. The simple geometry of the building helps minimize thermal bridging while three distinct outdoor spaces expand the livable area.