Stow Passive House Gains PHIUS Certification - and an Award!

ZED is proud to announce that Stow Passive House gained Phius ZERO Certification, a major accomplishment that represents the highest standard of energy performance and carbon accountability in building design and construction. In addition, we earned a 2025 Phius Passive Projects Design Competition Award! The rest of the winners are listed here.

These accomplishments celebrate our team’s commitment to design excellence, sustainability, and innovation in high-performance architecture. They also reflect the dedication and collaboration of our entire team in advancing architecture that is both timeless and transformative, particularly our collaborative contractor, Star Contracting Co., who did an incredible job building this home.

About Passive House Certification: earning certification means this project is designed and tested to perform well above and beyond other buildings when it comes to comfort, efficiency, resilience and safety. Projects certified to Phius’ climate-specific, cost-optimized standard are proven to use 40-60 percent less energy and provide a comfortable living environment.