Best Matthew Cutler Welsh Zack Semke Mary James And Ilka Cassidy Podcasts (2025)

1
260: Recapping PhiusCon 2025 1:18:26

Play Pause

4d ago1:18:26

1:18:26

In this episode of the Passive House Podcast, Ilka Cassidy and Kristof Irwin are at PhiusCon 2025, highlighting key sessions and interviews with industry experts. The conference explored a variety of themes including performance, purpose, and the power of community in the Passive House movement. Key takeaways included insights on air tightness, ven…

1
259: Inside Stonewater's Push for Sustainable Housing 48:27

11d ago48:27

48:27

In this episode of the Passive House Podcast, Matthew Cutler Welsh talks with Matthew Crucifix, Director of Development at Stonewater, they discusses the organization's efforts in providing affordable and sustainable housing in the UK. Crucifix outlines Stonewater's expansive reach, managing around 40,000 homes, and their current focus on retrofitt…

1
258: Demystifying Passive House Certifications with Tony Lisanti 1:05:22

18d ago1:05:22

1:05:22

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

1
TRE 11: Global Perspectives, Practical Insights 21:31

23d ago21:31

21:31

In the eleventh episode of The Reimagine Edit host Zack Semke strings together some pearls of wisdom from leading Passive House experts across three continents and include Martín Comas, Ed Ettinger, Lindsey Love, Joe Lstiburek, Tomas O’Leary, and Shefali Sanghvi. Each gem is selected from a conversation that took place inside the Reimagine Building…

1
257: The Future of Passive House in the Northwest with Greta Tjeltveit 1:00:40

26d ago1:00:40

1:00:40

In this episode of The Passive House Podcast, join Jay Fox and Mary James as they dive deep into sustainable building systems with Greta Tjeltveit, a Building Science Consultant at 4EA Building Science and Board President of Passive House Northwest. Greta shares her inspiring journey from researching post-Katrina rebuilding efforts in high school t…

1
256: Collective Impact: The RBC Summer Labs 1:26:03

1M ago1:26:03

1:26:03

In this episode of The Passive House Podcast, join Ilka and Jay for their in-depth discussion with the members of the Reimagine Buildings Collective's innovative Summer Labs. The episode showcases the experiences and insights of various industry professionals who participated in these member-led groups. Featuring Paul Heron, Randall Anway, Lauren S…

1
255: Designing London’s Passive Future: Az Rashid of Barratt London 49:04

1M ago49:04

49:04

In this episode of The Passive House Podcast, Mary James interviews Az Rashid Head of Design at Barratt London. Az shares details about Barratt London's focus on large-scale, mixed-use, residential-led regeneration projects within London, and their collaboration with Transport for London (TfL) to develop properties near transit lines. He discusses …

1
254: Green Building United Revive Panel 1:17:20

2M ago1:17:20

1:17:20

In this episode of the Passive House Accelerator Podcast, Ilka Cassidy and Mary James are joined by sustainability experts Amy Cornelius, Paul Thompson, and Joe Messier as they delve into a groundbreaking retrofit project in Philadelphia. This six-part demonstration series, hosted by Green Building United, examines a project aligning with the new P…

1
253: Gaelen McKee on Brooklyn SolarWorks 1:03:50

2M ago1:03:50

1:03:50

In this episode of the Passive House Podcast, co-hosts Jay Fox and Mary James speak with Gaelen McKee, Founder of Brooklyn Solar Works. They dive in to the company's origins, current projects, including work with co-ops and commercial buildings, and their plans for expanding into ground-mounted solar installations. Galen also touches on the impacts…

1
252: Building Beyond Compliance with Jessica Allen 44:30

2M ago44:30

44:30

In this episode of the Passive House Podcast, Matthew Cutler Welsh interviews Jessica, a high-performance building consultant at Climate Shore in Adelaide. They discuss Jessica's transition from energy efficiency compliance to specializing in high-performance building with a focus on mitigating moisture risks. Jessica emphasizes the importance of p…

1
251: Future Vision: Michael Quast on Leading Passive House Canada 51:59

2M ago51:59

51:59

In this episode of the Passive Hosue Podcast, Zack Semke welcomes Michael Quast, the new CEO of Passive House Canada. Michael shares his diverse background in construction, business development, and media, emphasizing his passion for sustainable building. They discuss Michael's journey to Passive House Canada, his experience with straw bale constru…

1
250: Enhancing Lives and Cutting Carbon in Ireland 44:25

3M ago44:25

44:25

In this episode of The Passive House Podcast, Mary James interviews Stephen O'Shea, head of Sustainable Construction at Carin Homes. Steven discusses the company's focus on large-scale residential projects, their commitment to Passive House standards, and the significant benefits for residents. He shares his journey from architecture to sustainable…

1
TRE 10: From Dehumidifiers to De-carbonization 22:53

3M ago22:53

22:53

In this tenth episode of The Reimagine Edit, host Zack Semke weaves together insights from a month of dynamic conversations inside the Reimagine Buildings Collective—including AMAs and Reimagine Tuesday interviews. From practical moisture control strategies to the latest in embodied carbon policy, from the efficiencies unlocked by design-build to t…

1
249: Transforming Community Housing with Arthur Lee 53:54

3M ago53:54

53:54

In this episode of the Passive House Podcast, Matthew Cutler Welsh sits down with Arthur Lee to discuss his background in architecture and his work in promoting energy-efficient buildings in New Zealand. Arthur shares his experience with passive house design at Tim Green Architects and his current role at Queenstown Lakes Community Housing Trust. L…

1
248: Insights from THRIVE 25, Melbourne Australia 1:08:04

3M ago1:08:04

1:08:04

In this episode, Matthew shares a compilation of voices from the recent THRIVE 25 Passivhaus Conference held in Melbourne Alex Slater Alex is the founder of Building Physics Pty Ltd, where he combines deep technical expertise with a passion for climate-responsive design. With a background in engineering and years of experience in thermal and hygrot…

1
247: Natural Materials and Collective Power 58:18

3M ago58:18

58:18

In this episode of the Passive House Podcast Jay Fox talks with Ace McArleton of New Frameworks about building with straw-insulated prefab panels, creating inclusive workspaces in the trades, and launching the Seed Collaborative to scale low-carbon construction through shared knowledge and collective action. https://www.newframeworks.com/ Thank you…

1
246: Scaling Retrofit with Kore: Passive House in Practice in Ireland 51:44

4M ago51:44

51:44

In this episode of the Passive House Podcast, Mary James speaks with Barry McCarron, Managing Director of Kore Retrofit, about Ireland’s bold retrofit efforts and Passive House leadership. Barry traces his journey from building the world's largest Passive House Premium project to leading cutting-edge retrofit initiatives through Kore’s one-stop sho…

1
TRE 09: Building Better Together Everywhere 34:20

4M ago34:20

34:20

In this ninth episode of The Reimagine Edit, host Zack Semke weaves together insights from the Reimagine Buildings 25 conference and a month of rich conversations inside the Reimagine Buildings Collective—including AMAs, Reimagine Tuesday interviews, and the post-conference after party. From the growing momentum behind high-performance prefab to ti…

1
245: NYSERDA Buildings of Excellence Round Five Awards 36:20

4M ago36:20

36:20

On this episode of the Passive House Podcast join Michael Ingui as he chats with the NYSERDA Buildings of Excellence Round Five Award winners. From groundbreaking Passive House projects in Manhattan, Buffalo, and the South Bronx to deep retrofits and adaptive reuse in Brooklyn and beyond, we hear from architects, developers, and engineers driving h…

1
244: Hot, Humid, and High Performance 53:00

4M ago53:00

53:00

In this episode of the Passive House Podcast, hosts Mary James and Ilka Cassidy sit down with Kristina Held, principal and founder of Held Architecture. Kristina shares her fascinating path through architectural education in Serbia, Germany, and the U.S., and how that global experience shaped her approach to Passive House. From humidity challenges …

1
243: Scaling Small: ADUs and the Future of Housing 1:19:19

4M ago1:19:19

1:19:19

In this episode of The Passive House Podcast, Mary James sits down with Parlin Meyer, Managing Principal of BrightBuilt Home, and Chris Lee, Head of Design & Development at Backyard ADUs, for a deep dive into the growing world of accessory dwelling units (ADUs). Together, they explore how prefabrication, modular construction, and progressive policy…

1
242: Heritage Meets Sustainability: Inside the Malcolm Shabazz Harlem Plaza 1:04:12

5M ago1:04:12

1:04:12

In this episode of the Passive House Podcast, Jay Fox and Mary James talk with Lisette Wong and Jack Esterson of Think! Architecture & Design to explore the award-winning Malcolm Shabazz Harlem Plaza project. Learn how this project blends community heritage with Passive House sustainability in Harlem. Lisette and Jack share their journey to Passive…

1
TRE 08: Reimagining Design, Construction, and Materials 40:10

5M ago40:10

40:10

In this eighth episode of The Reimagine Edit (TRE) series of the Passive House Podcast, host Zack Semke shares selected clips of insights from Ed May (bldgtyp), Nakita Reed (Quinn Evans), Tessa Bradley (Artisans Group), Bev Craig (MassCEC), Mike Steffen (Walsh Construction), Lisa White (Co-Executive Director of Phius), and Jonsara Ruth and Allison …

1
241: Sarah Lewis on Scotland’s Bold Housing Future 1:03:23

5M ago1:03:23

1:03:23

In this episode of the Passive House Podcast Mary James and Jay Fox chat with Sarah Lewis, Research and Policy Director at the Passivhaus Trust. They explore Scotland’s groundbreaking push toward mandatory Passive House standards for new buildings. Sarah dives into the motivations behind the proposed legislation, lessons from Germany and Brussels, …

1
240: Smart Living Spaces with Sharon Robinson 50:48

5M ago50:48

50:48

In this episode of the Passive House Podcast, Matthew Cutler-Welsh talks with Sharon Robinson of Smart Living Spaces. Sharon shares her journey from standard design work to advocating for high-performance, affordable housing. She talks about how rethinking client communication, redefining “standard plans,” and focusing on building science fundament…