Twin Lakes Landing II

Marysville, WA
Capture Hi Res Ai 1 E1753490180514
Passive House Enclosure community
  • Project Completion 2022
  • Size 60 units
  • Services Provided Building Enclosure Consulting, Passive House Design Consulting, Passive House Verification Services
  • Client Dykeman Architects
  • Architect Dykeman Architects
Twin Lakes Landing II is the first multi-family building in Snohomish County to achieve Passive House certification.

This addition to the community provides stable housing and supportive services for families transitioning out of poverty. The property includes 60 residential units across four, three-story buildings. 30 of the units are transitional apartments for families coming directly from homelessness, while the remaining 30 units are permanent affordable homes, with access to supportive services.

The structures include slab on grade, walk-up stairs, high-performance insulation, triple-pane windows, and advanced heat pump water heating. The energy use is limited to roughly one-third of that of a typical apartment building and one-third of the site is preserved as an enhanced natural wetland.

RDH provided PHIUS+ Passive House design consulting, building enclosure consulting, PHIUS+ verification, and construction field review services for the building enclosure.

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