
Passive House Podcast
by Matthew Cutler-Welsh, Zack Semke, Mary James, and Ilka Cassidy
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From 18 epsHosts
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Recent episodes
293: Innovative Solutions for Affordable, Sustainable Living
Jun 23, 2026
1h 11m 13s
292: Profit by Experience: Insights from the Passive House Network Conference
Jun 16, 2026
58m 08s
TRE 17: Refining the Model
Jun 12, 2026
43m 09s
291: Beyond Carbon: Transforming UK Housing with Passive House
Jun 9, 2026
55m 29s
290: Decarbonization and Affordable Housing: The New Ecology Approach
Jun 2, 2026
55m 56s
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| Date | Episode | Topics | Guests | Brands | Places | Keywords | Sponsor | Length | |
|---|---|---|---|---|---|---|---|---|---|
| 6/23/26 | ![]() 293: Innovative Solutions for Affordable, Sustainable Living | In this Episode of the Passive House Podcast, Ilka Cassidy shares on-the-ground interviews from Green Building United’s Sustainability Symposium in Philadelphia, highlighting regional policy, incentives, and high-performance affordable housing work. Ilka chats first with Rich Freeh and Emily Pugliese of Green Building United about Pennsylvania’s divided political landscape, lagging energy code adoption and advocacy opportunities including Philadelphia’s push to adopt 2021 IECC residential code. Ilka also chats with Justin Lovenitti and Norm Horn of New Ecology about Energize Delaware programs and case studies in Philadelphia.https://greenbuildingunited.org/event/2026-sustainability-symposium/https://www.newecology.org/https://energizedelaware.org/https://collective.reimaginebuildings.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 join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays. | 1h 11m 13s | ||||||
| 6/16/26 | ![]() 292: Profit by Experience: Insights from the Passive House Network Conference | This episode of the Passive House Podcast was recorded during the Passive House Network conference in New Haven, Connecticut, hosted at the first certified Passive House hotel in the U.S. Hotel Marcel. Ilka Cassidy chatted with Ken Levenson about the theme “Profit by Experience” and Architect of Hotel Marcel Bruce Becker. Ilka also talked to other attendees like Timothy Lock, Beth Campbell, Karen Ramsey, and Cheryl Saldanha. They discuss Massachusetts code-driven Passive House growth, grid benefits, trade training access, community value, resilience, and the need to address cost, risk, and more in-person collaboration.https://www.hotelmarcel.com/https://passivehousenetwork.org/the-passive-house-network-conference-2026/?utm_term=&utm_campaig...https://collective.reimaginebuildings.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 join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays. | 58m 08s | ||||||
| 6/12/26 | ![]() TRE 17: Refining the Model✨ | Passive House designconstruction strategies+5 | Carmel PrattEd May+4 | ZAZNRGPassive House New York+4 | Bunker Hill | Passive Houseteamwork+5 | — | 43m 09s | |
| 6/9/26 | ![]() 291: Beyond Carbon: Transforming UK Housing with Passive House✨ | Passive HouseUK housing+3 | Joel Callow | Beyond CarbonPassive House Trust+1 | UKLondon | Passive HouseUK housing+5 | — | 55m 29s | |
| 6/2/26 | ![]() 290: Decarbonization and Affordable Housing: The New Ecology Approach✨ | decarbonizationaffordable housing+5 | Marty JostenAshley Wisse | New Ecology | — | decarbonizationaffordable housing+7 | — | 55m 56s | |
| 5/27/26 | ![]() 289: High Design, Low Carbon: A Conversation with Nathan Kipnis✨ | Passive Housesustainable architecture+3 | Nathan Kipnis | Kipnis Architecture and PlanningPassive House Accelerator+2 | — | Passive Housesustainable design+3 | — | 49m 01s | |
| 5/19/26 | ![]() 288: Insights from Wolfgang Feist at the International Passive House Conference✨ | Passive Housesustainability+3 | Wolfgang Feist | Passive House PodcastPassive House Accelerator | Essen | Passive HouseWolfgang Feist+5 | — | 30m 44s | |
| 5/12/26 | ![]() 287: Global Insights on Scaling Passive House✨ | Passive Housescaling+5 | Michael Ingui | Passive House PodcastPassive House Accelerator | Essen | Passive Housescaling+7 | — | 1h 00m 32s | |
| 5/5/26 | ![]() 286: Elizabeth and Everett's Straw Bale Passive House Journey✨ | straw bale constructionPassive House+4 | Elizabeth NorrisEverett Norris | — | ChristchurchPort Hills+1 | Passive Housestraw bale+5 | — | 59m 38s | |
| 4/28/26 | ![]() 285: Exploring Design and Community with Filmmaker Allie Rood✨ | design-build architecturedocumentary filmmaking+4 | Allie Rood | YestermorrowPrickly Mountain+2 | Warren, VermontVermont | design-buildarchitecture+7 | — | 1h 04m 53s | |
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| 4/21/26 | ![]() 284: Breaking Down Barriers to High-Performance Buildings with Nidhi Shah✨ | high-performance buildingssustainability+4 | Nidhi Shah | Reimagine Buildings CollectiveRetrofit Action for Tomorrow+2 | IndiaUK | Passive Housesustainability+5 | — | 44m 23s | |
| 4/14/26 | ![]() 283: Wunderbar Passive House with Andreas Goetz✨ | Passive Housesustainable building+3 | Andreas Goetz | Wunderbar Passive HousePassive House Accelerator+1 | OrewaAuckland | Passive HouseWunderbar+5 | — | 35m 02s | |
| 4/8/26 | ![]() 282: BuildingEnergy Boston 2026 Part 2✨ | energy retrofitsustainability+4 | Jacob RacusinPhil Kaplan | Unstoppable Inner Resilience and Generational Leadership | — | BuildingEnergy Bostonenergy retrofit+4 | New Energy Works | 51m 37s | |
| 3/31/26 | ![]() 281: BuildingEnergy Boston 2026 Part 1✨ | BuildingEnergy Conferencesustainability+3 | Jacob RacusinGregory Smith+7 | Moody NolanBuilt Environment Plus (BE+)+5 | — | BuildingEnergysustainability+3 | — | 1h 14m 30s | |
| 3/24/26 | ![]() TRE 16: Beyond Building Science✨ | building sciencehigh-performance construction+4 | Ben Bogie | Reimagine Buildings Collective | — | building sciencehigh-performance construction+5 | — | 1h 00m 26s | |
| 3/17/26 | ![]() 280: Scaling Passive House in Massachusetts with Nick Nigro✨ | Passive Househousing redevelopment+3 | Nick Nigro | Leggat McCall | Charlestown, BostonBunker Hill Housing Redevelopment | Passive HouseBunker Hill+3 | — | 1h 01m 25s | |
| 3/10/26 | ![]() 279: Beyond Aesthetics: Kia Weatherspoon on Design Equity✨ | design equityaffordable housing+3 | Kia Weatherspoon | Determined by Design | — | design equityaffordable housing+5 | — | 41m 58s | |
| 3/3/26 | ![]() 278: Exploring Insulation and Overheating Risks with Tavis Creswell-Wells✨ | insulationoverheating risk+4 | Tavis Creswell-Wells | EcolutionBRANZ+4 | — | insulationoverheating+5 | — | 48m 15s | |
| 2/25/26 | ![]() 277: Transforming Multifamily Housing: Lessons from Cycle Architecture + Planning✨ | multifamily housingenergy retrofits+4 | Tony DanielsCaitlin Matusewicz | Cycle Architecture + PlanningNYSERDA+1 | — | multifamily housingenergy retrofits+6 | — | 1h 10m 02s | |
| 2/17/26 | ![]() 276: Edie Dillman and Karen Ramsey on Fort Collins' Designed to 2030✨ | Passive Housesustainability+3 | Edie DillmanKaren Ramsey | B.Public PrefabBuilding Wellness+1 | Fort CollinsColorado | Passive HouseFort Collins+6 | — | 59m 38s | |
| 2/13/26 | ![]() 275: Sustainable Practices in New York City with Shefali Sanghvi and Heather McKinstry | In this episode of The Passive House Podcast, co-host Jay Fox interviews Heather McKinstry and Shefali Sanghvi of Dattner Architects about their work focusing on Passive House projects, primarily affordable housing in New York City. The discussion delves into Dattner Architects' commitment to civic work, including multifamily housing, transportation, and healthcare projects. They emphasize the benefits of Passive House standards in dense urban environments, particularly in improving indoor air quality and reducing energy consumption. The conversation also touches on overcoming misconceptions about costs, the importance of third-party certification, and the educational needs of both clients and residents. The episode concludes with recommendations for developers interested in pursuing affordable Passive House projects, including tapping into state and local resources and ensuring expertise within the project team.https://www.dattner.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 join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays. | 1h 08m 20s | ||||||
| 2/3/26 | ![]() 274: Regenerative Building Practices with Lindsey Love | In this episode of The Passive House Podcast, host Zack Semke discusses bio-based materials and high-performance buildings with Lindsey Love from Regenerative Building Solutions. They highlight the importance of early phase energy and embodied carbon modeling, integrating natural materials in construction, and the benefits of such materials for building resilience and occupant health. They also discuss the AIA 2030 Commitment and the Materials Pledge, emphasizing strategies for small firms to implement high-impact, sustainable building practices. Regenerative Building Solutions: https://www.regenbuilding.com/Link to the AIA 2030 Commitment: https://www.aia.org/design-excellence/climate-action/zero-carbon/2030-commitmentNature-based Performance Lab's Fall insight brief: https://passivehouseaccelerator.com/articles/retrofit-labs-insight-briefs-now-availableThank 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 us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays. | 45m 17s | ||||||
| 1/27/26 | ![]() TRE 15: Are You Experienced? | There’s a lot of building science that goes into making passive buildings extremely durable, efficient, comfortable, and healthy. However, one of the things that often gets overlooked when trying to explain the benefits of Passive House is the experience of actually being in one. There is a certain ineffability associated with the experience that defies easy translation into facts and figures, and this can be especially tricky to communicate to clients who are not already enthusiastic about Passive House. However, as revealed throughout episode fourteen of The Reimagine Edit series of the Passive House Podcast, finding ways to frame Passive House as being quieter, healthier, more comfortable, more resilient, and just…better is key to getting them on board.In this episode, host Zack Semke shares selected clips of conversations from the Reimagine Collective. Featured speakers include Craig Stevenson, Lindsay Schack, Matt Brill, Graham Irwin, and Michael Ingui.The Reimagine Edit is a special series of the Passive House Podcast that shares curated insights from our Experts-In-Residence at the Reimagine Buildings Collective, our membership community of building professionals stepping up to tackle climate change. Learn more about the Reimagine Buildings Collective at https://www.reimaginebuildings.com. | 44m 06s | ||||||
| 1/20/26 | ![]() 273: Buildings as Habitat: Biodiversity-Informed Investments in Public Health | In this episode of The Passive House Podcast, Ilka Cassidy and Kristof Irwin discuss with Helena van Vliet the concept of biophilic design and its impact on human wellbeing. Helena explains how designing environments that reconnect humans with nature can optimize physiological energy and reduce stress and inflammation. The conversation delves into practical applications of biophilic design in urban environments, exploring how elements like dynamic sunlight, water features, and vegetation can improve health and connect people with natural surroundings. The episode also touches on the challenges of integrating these concepts with traditional architectural practices focused on energy efficiency and durability.Helena van Vliet Dipl.-Ing. AIA is an internationally recognized expert in Biophilic Design. She is a registered Architect, Consultant, Researcher, Educator, and Speaker focusing on the direct connections between human and bio-habitat resilience in built environments. In her designs, consulting work and teaching, she integrates insights from her 40 years of practice, as well as data from her ongoing research in evolutionary biology, cognitive neuroscience, biopsychology, and chronobiology.https://www.helenavanvliet.com/https://www.biophilly.org/https://www.biophiliccities.org/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 us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays. | 1h 20m 20s | ||||||
| 1/13/26 | ![]() 272: Beyond the Bubble: Carmel Pratt and the Future of Passive House in NY | In this episode of The Passive House Podcast Mary James and Jay Fox chat with Carmel Pratt, the new executive director of New York Passive House. They explore Carmel's background in architecture and sustainability, her role at New York Passive House, and her approach to sustainability consulting. Carmel shares the rich history and milestones of New York Passive House, including notable policies, educational initiatives, and collaborations with key organizations like NYSERDA and the International Passive House Association. The discussion also delves into the organization's goals for 2026, emphasizing workforce development, economic feasibility, and expanding beyond their traditional bubble. Carmel also highlights significant Passive House projects in New York and discusses her own consulting business, ZAZNRG, focusing on building operation and public education.https://www.nypassivehouse.org/https://zaznrg.com/ | 1h 07m 01s | ||||||
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