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nwBuilt 4-Star Single-Family Home


Vital Stats
Location: Green Lake, Seattle
Star Level: 4-Star
Checklist: Single-family/Townhome
Verifier: Evergreen Certified
SectionPoints
Site and Water153
Energy Efficiency127
Indoor Air Quality125
Material Efficiency93
Total Score522


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nwBuilt's most recent project pairs contemporary aesthetic and state-of-the-art sustainable design features for a new single-family residence in Seattle's Green Lake neighborhood. The builder chose to retain many of the original trees on site and utilized a combination of permeable pavers and bioretention facilities for 100% on-site water management.

Reclaimed oak finishes, formaldehyde-free millwork, and an abundance of natural light combine for a charming rustic interior. High-performance mechanical systems include in-floor radiant heat and ductless mini-splits for efficient heating and cooling, a tankless water heater for all hot water needs, and a heat-recovery ventilator-all of which help contribute to a modeled energy savings of 30% better than code!

In addition, this project was built in collaboration with local businesses, showcasing Seattle's vibrant and ever-growing building-related business community.

Built Green highlights include: 

Site and Water

  • Pervious pavers and bioretention facilities for 100% on-site water management
  • Drought-tolerant plants and existing trees retained on site
  • Low-flow fixtures and dual-flush toilets
  • Pedestrian access to Green Lake Trail


Energy Efficiency

  • Modeled 30% savings over Washington State Energy Code 2012
  • 100% LED lighting
  • ENERGY STAR appliances
  • Ductless mini-splits and in-floor hydronic heat
  • Tankless gas water heater

Health and Indoor Air Quality

  • Low-VOC interior paints
  • Formaldehyde-free millwork and cabinets
  • Heat-recovery ventilation for continuous fresh air circulation
  • No carpet installed

Materials Efficiency

  • Reclaimed wood furniture and siding
  • Recycled content insulation
  • Salvaged flooring

Still Images


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    Use pervious surfaces to reduce rainwater runoff