• The affordable, efficient, and resilient path to NET ZERO multifamily housing

Passive Building is Hot in Multifamily Construction

The PHIUS+ Passive Building Standard is spurring rapid growth of passive buildings in the multifamily sector—coast to coast—because it is cost-optimized to each climate zone. Learn more how Passive House Institute US (PHIUS) can help you achieve the affordability, resiliency, and health benefits of passive building on your next project.

DevelopersArchitects & Engineers Policymakers Investors

The PHIUS+ Standard

The PHIUS+2015 Passive Building Standard released by Passive House Institute US (PHIUS) in 2015 is the only passive building standard on the market based upon climate-specific comfort and performance criteria. Buildings designed and built to this standard perform 60-85% better (depending on climate zone and building type) on an energy consumption basis when compared to a code compliant building (International Energy Conservation Code IECC 2009).
The cost-optimized PHIUS+2015 Standard is spurring new growth in passive buildings from coast to coast, with the most significant gains coming from the multifamily housing sector. Certified and Pre-Certified PHIUS+ projects now total more than 1 million square feet across 1,200 units nationwide. As more units come online every day, more families are enjoying the affordability, resiliency, and health benefits of passive buildings.

Passive Projects

This $60 million project will be the largest Passive House Certified building in the world, with 10% more conditioned passive house floor area than the Lodenareal 354-flat project in Innsbruck, ...

Village Centre Apartments located in Brewer, Maine, is one of the largest multifamily passive building projects in North America. Built...

Are you Ready for PHIUS+?

To help decide if PHIUS+ is a worthwhile pursuit, request a feasibility study and learn what it will take to bring your building design to PHIUS+ certification.

Request A Low-Cost Feasibility Study


  • "Every day I find a new reason to love it. It's cool, it's quiet, and I don't even hear the train. During the heat wave, my girlfriend came over to sleep because it was so cool."

    George Hamlin, Orchards at Orenco Resident
  • "You know this Passive House design business... you know what it really means to these families that are going to live in these buildings? It means they will pay almost nothing for utilities! That is what it means to these people!"

    Washington, D.C. Mayor Vincent Gray, Weinberg Commons
  • "...We were able to deliver these buildings without additional cost, and [that] was a big goal for us."

    Chris Benedict, Architect, Knickerbocker Commons