Boston Passive House & Energy Code

Passive House is a performance-based building certification that focuses on the dramatic reduction of energy use for space heating and cooling. It is a set of metrics for energy performance, a certification that can be achieved, and a philosophy for how to design & construct better buildings.

Through Passive House, we can deliver a high level of energy savings and carbon reduction for all building types while providing a healthier and more comfortable space to live and work.

A Boston Passive House can be any building –  a school, an apartment building, a new residential home or a historical renovation, even a large office skyscraper. Through a thoughtful and integrated design process and a detail oriented approach to construction that prioritizes a well insulated and air-sealed envelope, natural light and solar gain, and highly-efficient HVAC systems, we can create buildings that use over 90% less energy for space conditioning and over 60% less energy overall.

Boston Passive House buildings achieve:

  • Drastically lower energy use and operational cost savings

  • Healthy air quality from ventilation systems

  • Consistent and comfortable room temperatures without air drafts

  • Increased natural lighting and quieter acoustic conditions

  • A more resilient and comfortable building

On top of all of this, the lower energy demand of Boston Passive House buildings means that the limited energy they do need can be easily provided by solar power, creating a pathway to a net-zero or net-positive building.

Features of Passive House


Building Envelope

  • Exterior Thermal Insulation

  • Continuous Air-Barrier

  • Thermal Bridge Mitigation

  • High-Performance Windows & Doors

  • Optimized Solar Heat Gain

Mechanical Systems

  • Balanced Ventilation with Heat Recovery

  • Efficient and Minimized Heating/Cooling

  • High-Efficiency Water Heaters

Benefits of Passive House

Financial Benefits

  • Reduced energy demand

  • Reduced maintenance costs

  • Climate resilient construction

Health & Comfort Benefits

  • Improved indoor air quality

  • Consistent temperature

  • Quieter acoustics

Environmental Benefits

  • Reduced carbon emissions

  • Climate resilient building

  • Focus on embodied carbon reduction