Matthew Cutler-Welsh, Zack Semke, Mary James, and Ilka Cassidy

Passive House Podcast

Society EN ↓ 519 episodes

Interviews with the leaders, practitioners, and change-makers in the global Passive House movement. A production of Passive House Accelerator.

Author

Matthew Cutler-Welsh, Zack Semke, Mary James, and Ilka Cassidy

Category

Society

Podcast website

passivehouseaccelerator.com

Latest episode

Jul 8, 2026

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Episodes

Bonus Episode: David Claus of UNBC (Passive House CA Conference '24) 05.07.2024

In this special bonus episode recorded at the 2024 Passive House Canada Conference in Victoria, BC co-host of the Passive House Podcast Mary James interviews David Claus of UNBC. https://www.unbc.ca/ https://conference.passivehousecanada.com/ Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseacce...

Bonus Episode: Craig Edwards of the City of Vancouver (Passive House CA Conference '24) 04.07.2024

In this special bonus episode recorded at the 2024 Passive House Canada Conference in Victoria, BC co-host of the Passive House Podcast Mary James interviews Craig Edwards of the City of Vancouver. https://conference.passivehousecanada.com/ Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccele...

Bonus Episode: Patrick Ropple of Evoke Buildings (Passive House CA Conference '24) 03.07.2024

In this special bonus episode recorded at the 2024 Passive House Canada Conference in Victoria, BC co-host of the Passive House Podcast Mary James interviews Patrick Ropple of Evoke Buildings. https://conference.passivehousecanada.com/ https://www.evokebuildings.com/ Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programmin...

193: Urban Mining and Circularity with Anja Rosen 02.07.2024

In the second part of our series on circular construction, we explore the intersection of sustainable building practices and carbon reduction. Co-hosts Mary James and Ilka Cassidy are joined by special guest Anja Rosen, of the Urban Mining Index based in Germany. Anja shares insights from her work in circular construction, emphasizing the importance of recycling and reusing building materials. She...

Bonus Episode: Keith Burrows of TAF (Retrofit CA Conference '24) 28.06.2024

In this special bonus episode recorded at the 2024 Retrofit Canada Conference in Vancouver, BC co-host of the Passive House Podcast Mary James interviews Keith Burrows of The Atmospheric Fund (TAF). https://taf.ca/ Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join...

Bonus Episode: Darla Simpson of ZEIC (Retrofit CA Conference '24) 27.06.2024

In this special bonus episode recorded at the 2024 Retrofit Canada Conference in Vancouver, BC co-host of the Passive House Podcast Mary James interviews Darla Simpson of The Zero Emissions Innovation Centre (ZEIC). https://www.zeic.ca/ Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerato...

Bonus Episode: Lorrie Rand of ReCover Initiative (Retrofit CA Conference '24) 26.06.2024

In this special bonus episode recorded at the 2024 Retrofit Canada Conference in Vancouver, BC co-host of the Passive House Podcast Mary James interviews Lorrie Rand of ReCover Initiative . https://www.recoverinitiative.ca/ Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And pl...

192: Revolutionizing Material Reuse with Concular 25.06.2024

In the first of three episodes of our Circular Construction Series co-hosts Mary James and Ilka Cassidy sit down with Dominik Campanella, co-founder of Concular. They delve into the innovative practices transforming the construction industry. Dominik shares the inspiring journey of Concular, starting from the initial idea conceived in 2000 to the establishment of a thriving marketplace in 2012 and...

Bonus Episode: Andrea Linsky of Alberta Ecotrust (Retrofit CA Conference '24) 24.06.2024

In this special bonus episode recorded at the 2024 Retrofit Canada Conference in Vancouver, BC co-host of the Passive House Podcast Mary James interviews Andrea Linsky of Alberta Ecotrust . https://albertaecotrust.com/ Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please...

191: Breaking Out of the Box 18.06.2024

In this episode of the Passive House Podcast Matthew Cutler Welsh chats with Sue Connor of Gaea Architects based in Sydney, Australia. Sue chatted about her lifelong passion for architecture and sustainability.  Sue delves into her work with Passive House standards, emphasizing the importance of non-toxic, ethical, and energy-efficient building materials. Through her collaborative work with Darren...

190: Australian Leaders at THRIVE 2024 11.06.2024

In this episode, Matthew Cutler Welsh dives into the highlights of the 2024 Thrive Passivhaus Conference, in Melbourne Australia. Matthew chats with: Joe Karten of Built Emilia Lacovino of Detailed Green Kristie Wulf of the Australian Hemp Building Directory Talina Edwards of Envirotecture Hamish White of Sanctum Homes Andy Marlow of the Australian Passivhaus Association Highlights include the fir...

189: Passive Panels to Scale Decarb, Quantum Passivhaus 03.06.2024

In this episode, co-host Mary James speaks with Angie Horner, co-founder of Quantum Passivhaus, based in Minden, Ontario. Angie shares the inspiring journey of how Quantum started as a husband-and-wife team in 2013, driven by a passion for sustainable building practices and the desire to address common construction issues. We dive into the development of their innovative prefabricated passive hous...

Bonus Episode: Certifications - All or None? 31.05.2024

In this bonus episode of the Passive House Podcast, co-host Ilka Cassidy is at the Sustainability Symposium hosted by Green Building United. In the first interview Ilka talks with Robert Fleming, Brian Fullen, Carolina Downey and Sarah Harvey of FCA  along with Kayla Reddington and Sarah Murphy of Turner Construction about their sustainability framwork. In the second interview Ilka speaks with Sco...

Bonus Episode: Adapting Row House Neighborhoods for the Future 30.05.2024

In this bonus episode of the Passive House Podcast, co-host Ilka Cassidy is at the Sustainability Symposium hosted by Green Building United. Ilka talks with Paul Thompson of BluPath, Lauren Thomsen & Matt Gindlesparger of Lauren Thomsen Design, Justin Iovenitti & Norm Horn of New Ecology and David Gavin of Quinn Evans. Ilka talked to the presenters of a row house renovation in Baltimore an...

Bonus Episode: Insight into Green Building United, the Sustainability Symposium and Greenbuild 2024 29.05.2024

In this special bonus episode of the Passive House Podcast, co-host Ilka Cassidy is at the Sustainability Symposium hosted by Green Building United. Ilka talks with Rich Freeh the Executive Director of GBU and Sangeetha Sambandam of WRT. They give insight into Green Building United and the Symposium, its history, goals, and  strategic planning. And looking ahead to Greenbuild in Philadelphia. Link...

188: Building Intelligent Cities 28.05.2024

Passive House Podcast Co-Host Mary James and Ilka Cassidy had the pleasure of speaking with Cindy Wilson, co-founder of Intelligent City, a  company based in British Columbia, Canada. Cindy shares the innovative journey of Intelligent City, which began with a vision to improve urban living through sustainable, efficient construction. She delves into the company's evolution from traditional archite...

187: Saving Buildings Is Cheap–Prefab Retrofits 21.05.2024

In this episode of the Passive House Podcast co-host Zack Semke speaks with Tim McDonald of Onion Flats Architecture on the heels of Tim's involvement in the Reimagine Building PREFAB conference. Tim discusses his firm's current portfolio of passive deep energy retrofit projects  and shares his growing realization that we need to fundamentally rethink our understanding of the economics of retrofit...

186: Building a Business Building with Panels 13.05.2024

In this episode, Passive House Podcast host Matthew Cutler Welsch talks with Darryn Parkinson of Eclipse Passive House. Darryn is a builder with a passion for sustainability and efficiency. From his early fascination with understanding how things work to his deep concern about environmental impact, Darryn shares his transition from traditional building methods to the innovative world of passive ho...

185: Refining Offerings & Expanding Production—Collective Carpentry Hits Its Stride 06.05.2024

In this episode of the podcast, Co-Hosts Mary James and Ilka Cassidy speak with Heather Mott, Director of Architecture at Collective Carpentry. Heather provides an update on the progress of the company's pre-designed homes, known as Collective Homes.  She delves into the refinements made to their building process, including advancements in communication with consultants, feedback integration, and...

184: Scaling Up: Can Prefab Help Passive Building Go Mainstream? 30.04.2024

Passive House Podcast co-host Ilka Cassidy interviews Beth Campell of Unity Homes , Edie Dillman of  B.Public Prefab and Katie Faulkner of West Work  . This discussion considers pathways toward pre-manufactured buildings and tackles challenges in large scale market adoption from four different viewpoints: the architect, the builder, the software integrator, and the retrofit specialist. This episod...

Bonus Episode: Gunter and Markus Lang (Passathon) & Clara Kupelwieser (GBS Summer University) at IPHC 2024 28.04.2024

In this special bonus episode recorded at the In­ter­na­tion­al Pass­ive House Con­fer­en­ce in Inns­bruck, Aus­tria co-host of the Passive House Podcast Michael Ingui interviews Gunter and Markus Lang of Passathon & Clara Kupelwieser of Green Building Solutions Summer University. https://passathon.at/ https://www.oeadstudenthousing.at/en/summer-universities/gbs/ Thank you to our sponsor, Sour...

Bonus Episode: Sarah Lewis & Yogini Patel of Passivhaus Trust (IPHC 2024) 27.04.2024

In this special bonus episode recorded at the In­ter­na­tion­al Pass­ive House Con­fer­en­ce in Inns­bruck, Aus­tria co-host of the Passive House Podcast Mary James interviews  Sarah Lewis & Yogini Patel of Passivhaus Trust . https://www.passivhaustrust.org.uk/ Thank you to our sponsor, Source 2050 for making the Passive House Podcast at  In­ter­na­tion­al Pass­ive House Con­fer­en­ce . https:...

Bonus Episode: Andrew Michler (Hyper Local Workshop), Bronwyn Barry (Passive House bb), Bruce Becker (Becker+Becker) (IPHC 2024) 26.04.2024

In this special bonus episode recorded at the In­ter­na­tion­al Pass­ive House Con­fer­en­ce in Inns­bruck, Aus­tria co-host of the Passive House Podcast Mary James interviews  Andrew Michler of Hyper Local Workshop, Bronwyn Barry of Passive House bb, & Bruce Becker of Becker+Becker. https://www.passivehousebb.com/ https://hyperlocalarch.com/ https://www.beckerandbecker.com/ Thank you to our s...

183: Scottish Social Housing with Angela Currie 25.04.2024

Join co-host Matthew Cutler Welsh in his conversation with Angela Currie of Hanover in Scotland. Angela delves into the world of social housing in Scotland, exploring its rich history, the evolving landscape of affordable housing, and the challenges of climate change. From Edinburgh to rural villages like Drymen, discover how housing associations like Hanover are reshaping communities and improvin...

Bonus Episode: Jessica Grove Smith of Passivhaus Institute (IPHC 2024) 24.04.2024

In this special bonus episode recorded at the In­ter­na­tion­al Pass­ive House Con­fer­en­ce in Inns­bruck, Aus­tria co-host of the Passive House Podcast Mary James interviews Jessica Grove Smith of Passivhaus Institute . https://passivehouse.com/ Thank you to our sponsor, Source 2050 for making the Passive House Podcast at  In­ter­na­tion­al Pass­ive House Con­fer­en­ce . https://source2050.com/...

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