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Passive House #1 at Columbia Station

    • This Seattle home by Dwell Development is certified to the strict performance standards of the U.S. DOE Zero Energy Ready Home program, as well as those of the Northwest ENERGY STAR program, Passive House Institute U.S., and the regional Built Green program.
    • This three-story modern high-performance home by Dwell Development provides its homeowners with enhanced comfort and durability, as well as low energy bills of less than $500 per year.
    • Solar window shading is built into the design of the three-story home to minimize heat gain from high overhead summer sun while allowing low winter sun into the natural daylight home.
    • The high-performance home has a rooftop deck on the third floor, providing views and maximizing space on the infill site.
    • The Zero Energy Ready Home is one of 42 homes in a micro-community of ultra-modern, energy-efficient homes built on an urban gray-field site in South Seattle.
    • The single ultra-efficient ductless heat pump (10.6 HSPF, 23 SEER), shown mounted on the wall at the upper left, provides all the heating and cooling the 2,000-square-foot home needs. The heating and cooling requirements are substantially reduced by the 14-inch-thick double-wall thermal blanket construction with insulation and ultra-efficient triple-pane windows.
    • Advanced lighting technology, including compact fluorescent fixtures, help reduce energy use.
    • Ultra-efficient triple-pane windows fill the home with natural light and minimize the transfer of heat in or out with advanced technology coatings.
    • High-efficiency appliances, including an ENERGY STAR-rated dishwasher, clothes washer, and refrigerator, save energy and water.
    • The home meets all of the criteria of the EPA’s Indoor airPLUS program, including the requirement to use low-/no-VOC containing cabinetry and finishes. Photo courtesy of Dwell Development

      Passive House #1 at Columbia Station

      Project Address

      Seattle, WA

      Conditioned Square Footage
      2,000 sqft
      Number of Bedrooms
      3 Beds
      Number of Bathrooms
      2.5 Baths
      Number of Floors Above Grade
      3 Floors Above Grade
      Home Type
      Custom
      Climate Zone Temperature
      Mixed
      Climate Zone Humidity
      Marine

      Without PV

      HERS Index
      45HERS
      Average Monthly Energy Bill
      $40Average Monthly Energy Bill
      Annual Energy Cost Savings
      $1,800Annual Energy Cost Savings
      30 Year Savings
      $75,00030 Year Savings

      Dwell Development LLC

      ZERO

      HIA Year
      HIA Status
      Winner
      HIA Category
      Housing Innovation Award

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      Key Features

      Key Features
      Energy / Heat recovery ventilator Electric Vehicle Charger Installed or Wired for Charger Triple-pane windows Unvented insulated attic ACH 50 < 2.5 or CFM50/SF of enclosure ≤ 0.25 Double Walls Central Manifold Plumbing Design

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      Testimonials

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      Home owner (or occupant) Testimony
      We looked for a long time, and we were finding the choice between bad and worse. This house is so preferable – to have the opportunity to be in a home that is so well-built. It’s double-checked. We like the fact that there are standards in place.
      Testimony Citation
      Dwell homeowner

      Additional Media

      Finished Elevations

        Finished Interiors

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            Floor Plan