Multifamily Projects

The Phius standard is spurring rapid growth of passive buildings in the multifamily sector from coast to coast. From New York City high rises, to suburban three-flats, Phius projects are being certified all across the country.

The Future of Multifamily Construction

As buildings get bigger, efficiency scales along with it. A passive building paradox is that larger houses can achieve certification more easily than smaller ones. This seems unintuitive, but it explains why passive building scales up to commercial and industrial so well.
Multifamily Overview

Scale up the project, not the budget


Average incremental cost for Phius multifamily projects over baseline


Incremental cost for many multifamily projects due to cost savings from reduced mechanical system size and distribution infrastructure

Larger buildings inherently have better economics to achieve Phius Certification than single-family homes. They have a lower surface-to-volume ratio, meaning investments in the building enclosure affect a larger area of conditioned space. Plus, the internal load density found in multifamily buildings lowers the required thermal performance of the enclosure to strike the optimal energy balance.

Multifamily Building Done Right

Multifamily developments are the largest growing sector of passive building, so the list of Phius-certified projects will only continue to grow.

425 Grand Concourse, New York

425 Grand Concourse is a 26-story mixed-use building that includes 277 units of affordable housing and will be the largest passive house project to date in North America.
View 425 Grand Concourse

McQuesten Lofts, Ontario

McQuesten Lofts is a four-story, multi-unit residential and public library branch. It was the co-winner of Best Overall Project in the 2021 Phius Passive Projects Design Competition.
View McQuesten Lofts

Solis, Washington

Solis, also a co-winner for Best Overall Project in the 2021 Phius Passive Projects Design Competition, is a market-rate development that focused on simplistic design and decreased conditioned building area to meet Phius standards.
View Solis

Weinberg Commons, Washington DC

Weinberg Commons is the first multifamily passive building in the Washington, D.C. region, and is one of only two masonry multifamily passive building retrofits in the country.
View Weinberg Commons

Tools & Tips for Success

Passive building is rapidly growing in the multifamily sector, so find the tools you need to get started.

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