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



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, 5:30PM

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:
[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.

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, 9AM – 10AM

More Project information.

Donath Lake Development, Ft Collins – South

Nov 6, 10:30 – 11:30AM

More information & 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.

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.

Stay tuned for more regions, listings and information.