Sitka is a 7-story, mixed-use development spanning a full block of Seattle’s South Lake Union neighborhood. The building features five stories of wood-framed construction above two concrete levels and below-grade parking. Ductless heat pumps, a heat capture system, on-site greywater irrigation, rooftop bioretention planters, and drought-tolerant vegetation help maximize energy efficiency throughout the building. Several upper- and lower-level roofs are landscaped, and the podium level deck includes a large water feature. The 384-unit apartment community’s design was inspired to reflect the tranquility of the San Juan Islands.
JRS provided full building envelope design for the Sitka project. Collaborating closely with the Architect and Contractor, our responsibilities included window and air barrier testing, facade engineering, and construction administration. JRS also provided consulting services relating to environmental separation and overall building envelope performance.
Sitka’s design targets high-level sustainability, and the project is LEED® Platinum certified.