Phius

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Phius Phius is a 501(c)(3) passive building org committed to supporting the health of people and planet

Phius is a 501(c)(3) organization committed to making high-performance passive building the mainstream market standard. PHIUS is transforming the building sector by developing and promoting North American specific standards, practices, and certifications for buildings, professionals, and products to create structures that are durable, comfortable, healthy, and super energy efficient. Founded in 2003, Phius has trained more than 2,000 architects, engineers, energy consultants, energy raters, and builders in the passive building standard. The organization is the leading passive building research and information provider in North America. Phius provides training and certification to architects and construction professionals that enables them to design and build ultra-efficient residential and commercial structures, and to cut energy consumption in existing buildings by retrofitting them to the Phius 2015 Passive Building Standard. PHIUS also certifies projects through intensive design review and on-site quality assurance protocols.

We're heading tođź“ŤPittsburgh! Save the date for PhiusCon 2027, November 2-4. We hope to see you there!
10/14/2026

We're heading tođź“ŤPittsburgh!

Save the date for PhiusCon 2027, November 2-4. We hope to see you there!

Congratulations to the Brownsville Arts Center and Apartments team! Your mixed-use, new construction project in Brooklyn...
10/12/2026

Congratulations to the Brownsville Arts Center and Apartments team! Your mixed-use, new construction project in Brooklyn, New York is now Phius CORE 2021 Certified!

"Together, we believe the next phase of climate leadership requires integrating operational and embodied carbon into a c...
10/11/2026

"Together, we believe the next phase of climate leadership requires integrating operational and embodied carbon into a common framework for decision-making."

Our latest blog offers a tease of an upcoming carbon paper: https://ow.ly/88a650ZW7bY

Congratulations to the Dover Station Condos team! Your multifamily, new construction project in Roxbury, Massachusetts i...
10/10/2026

Congratulations to the Dover Station Condos team! Your multifamily, new construction project in Roxbury, Massachusetts is now Phius CORE 2024 Certified!

Nelson Group

The Built Environment Plus Green Building Showcase is back on November 4th at David Rubenstein Treehouse at Harvard’s ne...
10/09/2026

The Built Environment Plus Green Building Showcase is back on November 4th at David Rubenstein Treehouse at Harvard’s new Enterprise Research Campus in Allston! Come on out to celebrate progress greening the built environment and the teams pushing the industry forward!

Register here: https://ow.ly/bpms50ZSrqS

Congratultions to the Bethany Terraces team! Your multifamily, new construction project in Brooklyn, New York is now Phi...
10/08/2026

Congratultions to the Bethany Terraces team! Your multifamily, new construction project in Brooklyn, New York is now Phius CORE 2021 Certified!

Congratulations to the Lind Residence team! Your single-family, new construction project in Scottsdale, Arizona is now P...
10/07/2026

Congratulations to the Lind Residence team! Your single-family, new construction project in Scottsdale, Arizona is now Phius CORE 2024 Certified!

PhiusCon is almost here!⌛️Three days, plenty to see and you don’t have to be there for all of it. Single-day tickets are...
10/06/2026

PhiusCon is almost here!⌛️

Three days, plenty to see and you don’t have to be there for all of it. Single-day tickets are available, so you can join us for the day that works for you.

We’ll see you in Phoenix, Oct. 8-10.

Congratulations to the 6321 S. Eberhart team! Your single-family, new construction project in Chicago, IL is now Phius C...
10/06/2026

Congratulations to the 6321 S. Eberhart team! Your single-family, new construction project in Chicago, IL is now Phius CORE REVIVE 2021 Certified!

Tom Bassett-Dilley Architects, Ltd.

Congratualtions to the 3371 Washington team! Your multifamily, new construction project in Jamaica Plain, Massachusetts ...
10/05/2026

Congratualtions to the 3371 Washington team! Your multifamily, new construction project in Jamaica Plain, Massachusetts is now Phius CORE 2021 Certified!

RDH Building Science Inc.

Address

53 W Jackson Boulevard, Suite 1432
Chicago, IL
60604

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

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