Passive House and building-science consulting for multifamily, mixed-use, and high-performance residential projects
Helping project teams optimize enclosure design, mechanical systems, and certification strategy from early design through construction
Over 15 years of Passive House and Net Zero Energy building expertise
Services
Technical clarity for complex high-performance projects
Clear path from performance goals to construction realities.
Build Zero Consulting helps teams make informed decisions.
Passive House Consulting
Guidance on certification strategy, design-phase coordination, and performance
Energy Modeling & Analysis
Technical modeling and design analysis to inform decisions and evaluate key tradeoffs
Enclosure & Thermal-Bridge Review
Review of key assemblies, construction details, insulation, and airtightness to reduce risk
Mechanical & Ventilation Coordination
Guidance on system selection, ventilation strategy, and mechanical ventilation
Featured Projects
How we work
Align Goals Early
Guidance on certification strategy, design-phase coordination, and performance
Guide Key Decisions
Technical modeling and design analysis to inform decisions and evaluate key tradeoffs
Review Enclosures
Review of key assemblies, construction details, insulation, and airtightness to reduce risk
Reduce Risk During Delivery
Guidance on system selection, ventilation strategy, and mechanical ventilation
Building Energy Boston 2026 - NESEA Conference
Delivering Passive House multifamily buildings—especially in cold climates—requires more than just hitting performance targets. It requires smart trade-offs, data-driven decisions, and a clear understanding of cost vs. impact.
In this session, we’ll share insights from three real-world multifamily case studies, focusing on WUFI Passive optimization strategies, Thermal bridge mitigation approaches, Airtightness detailing and execution, Mechanical system efficiency vs. enclosure upgrades, Foundation insulation strategies and cost implications