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Passive House Incentive Program

The Sponsors of Mass Save offer incentives to support the construction of multi-family buildings (5 units or more) with deep energy savings. Certification and performance incentives are available to assist builders and developers in achieving Passive House certification or similar levels of efficiency.

Passive House building techniques address energy usage and resiliency, resulting in significant and long-lasting primary energy savings compared to homes built to conventional building codes. Mass Save provides technical support in the form of feasibility studies and energy modeling as well as financial incentives to cover the incremental cost of building to, or exceeding, Passive House standards. They structure their offerings to reduce the risk a developer may perceive in pursuing Passive House standards by providing incentive payments aligned with the feasibility, design, and construction phases.

What is Passive House?

Passive House refers to the ultimate goal in high efficiency design: buildings that minimize energy consumption and have added comfort and durability features. Passive House design focuses on air tightness and robust insulation, simplified mechanical systems and high-performing glazing, to achieve significantly lower energy use, while creating a durable and comfortable space for inhabitants. The Passive House Institute (PHI) and the Passive House Institute US (PHIUS) establish two independent standards and provide certifications for such homes: The International Passive House Standard and the PHIUS+ Passive Building Standard.

Is Your Project Eligible?

Incentives are available for multi-family buildings (5 units or more) enrolled during the early stages of design, prior to reaching 100% schematic design. To be eligible for incentives, participants must pursue Passive House certification of their multi-family building and agree to monitor and provide data on whole-building gas and electric consumption as well as on-site generation production. Participants must hire a Passive House consultant certified through either PHI or PHIUS to conduct a feasibility study and to serve as a consultant throughout the design and certification process. The Passive House consultant works with a Green Rater Verifier, like Home Energy Raters for on-site field verification and data collection. To receive post-construction incentives, your building much first be pre-certified. If it is not pre-certified, you may be eligible to receive the standard new home incentives.

Program eligibility requirements and incentives available are subject to change and may vary each year.


If you are pursuing Passive House certification and are interested in enrolling a multi-family project in to the Passive House Incentive Program, please call the office at 508-833-3100 or send us an email to



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