International Passive House Open Days Welcomes Visitors Around The World November 5-7 To Witness Effective Climate Action

The global event demonstrates the Passive House methodology that slashes carbon emissions commensurate the #COP26 goals - featuring a wide spectrum of buildings across the US from an office tower in Boston MA, to a single-family home in Berkeley CA.

The Passive House Network (PHN) is participating in a global building energy event, called the International Passive House Open Days. Over three days Passive House buildings will be open to the public, to experience first hand the qualities of Passive House building that sets them apart and delivers dramatic cuts in energy consumption and carbon emissions, while providing unsurpassed comfort, healthy indoor air quality and affordability.

“People are understandably skeptical of the impressive performance claims made by Passive House practitioners, and too often supporting data leaves people unmoved,” said Ken Levenson, Executive Director of PHN. “That’s why this event is so important, so that everyone can see it and experience it for themselves, speak to building owners and get the unvarnished story, the personal story.”

Across the US projects will open – in Massachusetts, New York, New Jersey, Minnesota, Colorado, Montana, Oregon, California and more. 

The first Passive House office tower in the US, Winthrop Center, now under construction in downtown Boston, will have a hard-hat tour Friday morning, November 5th.

In Colorado, Saturday, November 6th, there is a regional tour consisting of five projects – ending with a social, hosted by Emu and 475 High Performance Building Supply, in Littleton.

The event in the US will also include an online live virtual tour hosted by the Passive House Accelerator, on Friday, November 5th at 2 PM ET – to help kick things off. The tour will feature Michael Ingui and Amy Failla of Baxt Ingui Architects and Kevin Brennan of Brennan Brennan Air Sealing and Insulation, doing a walk-through of a historic masonry retrofit in mid-construction.

Bronwyn Barry, Chair of PHN, principal of the firm PassiveHouseBB, and host of a project tour in Sebastopol California, added, “Passive House is the one building strategy that delivers the emissions reductions that are desperately needed to help avoid climate catastrophe –  and when visitors experience a Passive House, they get it.”

More projects are being added each day across the country and around the world. Find out more:

International Passive House Open Days
November 5-7, 2021

The International Passive House Open Days are a great opportunity to learn about Passive House buildings of all kinds, around the US and the world. Get in contact with current owners and learn first-hand what it is like to live and work in a Passive House and what the building or retrofitting process was like. Some will have professionals on hand with the knowledge and tools to explain the technical details of Passive House projects.

Three Gathering Events

Online & In-Person Gathering:
Passive House Accelerator
w/ Live / Virtual Tour

Nov 5, 11 AM PT / 2 PM ET, 

225 East 25th Street, NYC

Join Passive House Accelerator and The Passive House Network for a live-online & in-person tour of the under-construction historic retrofit, Engine 16. More information and online event registration.

In-Person Gathering:
475 10 Year Anniversary Social, Brooklyn, New York

Nov 5, 5:30 PM ET

Join the 475 team at their Brooklyn HQ office to raise a toast to a decade of growing access to Passive House materials and knowledge. More information and register.

In-Person Gathering:
Emu + 475 Social Happy Hour Littleton, Colorado

Nov 6, 5:30 PM MT

End a day of Passive House touring in Colorado with a Happy Hour hosted by Emu and 475 High Performance Building Supply. There will be lots to talk about! More information & register.

COVID UPDATE: To enter indoor spaces be prepared to show proof of vaccination and to wear a mask.

Featured (in-person) American Projects: Nov 5-7



Berkeley Passive House

Nov 6, 10AM – 4PM

LEED Platinum & PHI Certified.  More Project information.

Sebastopol Passive House

Nov 6, 10AM – 4PM

Under construction single-family. For more information & register.


Millhaus, Ft Collins - North

Nov 6, 9 – 10 AM

More information and register.

Donath Lake Development, Ft Collins - South

Nov 6, 10:30 – 11:30 AM

More information and register.

Ogden Street Duplex, Englewood

Nov 6, 2:30 – 3:30 PM

More information and register.

Duff House, Littleton
Emu + 475 Social Happy Hour, Littleton

Nov 6, 5:50 – 7:30 PM

End a day of Passive House touring in Colorado with a Happy Hour hosted by Emu and 475.

More information coming soon.

Kirsch-Stroupe Residence, Tabernash

Nov 7, 10:30 – 11:30 AM

Guided tour of Emu pilot project.

More information and register.


Winthrop Center, Boston

Nov 5, 9:30 – 11 AM

Market-leading high-rise mixed-use office building in Boston’s downtown financial district – now under construction.  Register here.

Somerville Passive House
Park Passivhaus, Somerville

Nov 5 & 6, 11 AM – 2 PM

Two-story single-family home. Tour by owner and Certified Passive House Designer, Vladimir Pezel. More project information on the Passive House Database.


Good Energy Haus, Minneapolis

Nov 6, 2 – 4 PM Register.  

Nov 7, 1-3 PM Register.

Single-family Certified Passive House Plus home. Tours are provided by the homeowner and Certified Passive House Designer Tim Eian of TE Studio. More information in links above.


Karon EnerPHit Residence, Livingston

Nov 5, 10 AM – 2 PM

Guided tour of a retrofit project. Find out more and register.

Bozeman Passive House

Nov 6, 10 AM – 3 PM

Explore this Love | Schack project and learn about passive house methods, opportunities and practicalities in the Rocky Mountains.  Find out more & register.

New Jersey

Jersey City EnerPHit

Nov 7, 1 – 4 PM

74 South Street, Jersey City, NJ

An EnerPHit house renovation – in construction. Need to sign a liability waiver and wear masks. No children. Register Here

New York

475 Office Happy Hour

Nov 5, 5:30 PM 


Join the 475 team at their Brooklyn HQ office to raise a toast to a decade of growing access to Passive House materials and knowledge. More information and register.

The Catskill Project

Nov 5, 1-4 PM , Nov 6, 3-5 PM

302 Huber Road, Livingston Manor, NY 12758

Situated on more than 90 acres in New York’s beloved Catskill Mountains with 11 house sites, The Catskill Project is a carbon-neutral community. No Registration required.


Portland Retrofit

Nov 5, 1 – 5 PM

Nov 6, 9 AM – 5 PM

By Appointment Only: 503-239-8961 / [email protected]  Project Information


Carrick Carnegie Library of Pittsburgh

Nov 6, 2 – 4 PM

Certified Passive House public library. No registration is required. More project information.

Sewickley Duplex

Nov 7, 2 – 4 PM

700/702 Washington Street, Sewickley, PA 15143

New construction, nearing completion, pursuing certification.

Stay tuned for more regions, listings and information.