35 Stone
Seattle, WA / 112,700 SF SF
The 35 Stone project is a five-story, mixed-use development comprising 103,000 square feet of office space, 4,700 square feet of at-grade retail and restaurant spaces, and three levels of below-grade parking. The project is part of the Seattle Living Building Pilot Program, which aims to meet the highest sustainability and environmental standards. The building features a hybrid mass timber construction and a state-of-the-art 250,000-gallon rainwater harvest cistern. Through our integrated MEP solutions, we helped create a functional, efficient space and a model of environmental responsibility.
Mechanical
Mechanical scope includes Trane Air Source Heat Pumps (ASHP) and Heat Recovery Chillers (HRC), a Rooftop Dedicated Outdoor Air System (DOAS) unit for enhanced ventilation, and electric backup boilers for supplemental heating.
Plumbing
Plumbing scope includes garage-level shower rooms, restrooms at each level, and a heat pump system for domestic hot water. A unique opportunity in this project includes a fully integrated rainwater harvesting system for non-potable water use. The system collects rainwater for reuse in irrigation, cooling, and other non-potable uses, supported by a 250,000-gallon cistern.
Controls
An integrated Building Automation System (BAS) allows for energy optimization of HVAC and real-time monitoring of building systems to ensure comfort, efficiency, and compliance with sustainability objectives.
Awards
Redevelopment/Renovation of the Year Award
Finalist for the Sustainable Development of the Year Award from NAIOP Washington – Read More.