Building Sustainability Podcast

The majority of homes currently being built are bad for the earth, the occupants and the builder’s health.

Every fortnight, join Jeffrey Hart as he talks to designers, builders, makers, dreamers and doers. Exploring the wide world of sustainability in the built environment by talking to wonderful people who are doing excellent things.

Whether you want to learn more about natural materials, are navigating your own self build, or just want to know that better alternatives are out there, this is the podcast for you.

Recent Episodes

March 9, 2025

Circular, Modular, Hemp Construction - Chloe Donovan - BS132

In this episode of the Building Sustainability Podcast, we are joined by Chloe Donovan, founder of Natural Building Systems. She discuss the exciting potential of hemp and other bio-based materials in construction, how modula...
Dec. 13, 2024

From Constraints to Creativity: The Art of Sustainable Renovations - Sigi Koko - BS131

In this thought-provoking episode, we sit down with Sigi Koko, founder of Down to Earth Design , to explore the world of natural renovations. Sigi shares her journey of blending sustainability and health into home retrofits, ...
Dec. 13, 2024

Retrofit Naturally with Sigi Koko - BS130

In this episode of the Building Sustainability Podcast , Sigi Koko of Down to Earth Design shares her deeply personal journey of transforming a historic farmhouse into a fully natural, sustainable home. From retrofitting with...
Nov. 7, 2024

Earth, Time and Transformation - Becky Little - BS192

In this episode, we sit down with Becky Little, an artist, builder, and earth enthusiast, who shares her journey from traditional building to her deeply rooted, place-based art. Becky discusses her Orkney project, EarthBound ...
Oct. 23, 2024

Crafting with Cob: Stories of Clay, Community, and Creativity - Kate Edwards - BS128

In this episode, we dive into the ancient and evolving craft of earth building with Kate Edwards, a seasoned sculptor and passionate teacher. Join us as Kate shares her journey from art therapy to building with cob, a natural...
Oct. 9, 2024

Building community at Lammas Ecovillage - Tao Wimbush - BS127

Join me in conversation with one of the founding members of Lammas Eco Village - Tao Wimbush. Tao Paul Wimbush is the co-founder of the Lammas Ecovillage in West Wales. He has a wealth of experience in alternative communities...
Sept. 26, 2024

That Roundhouse - Tony Wrench - BS126

Tony and Faith wanted to live a simple low-impact life, so built a little roundhouse on some land in Wales. Little did they know that the lengthy resulting battle to stay in their home would be part of the beginning of the fl...
Sept. 11, 2024

Llamacroft, a bio-based Passivhaus Pt2 - Janna Laan Lomas - BS125

The second part of my conversation with Janna. In this episode we get into the nitty gritty of airtightness, and how we've come to appreciate its need, while not being 100% happy about the materials needed to achieve it. We t...
Sept. 11, 2024

Llamacroft, a bio-based Passivhaus Pt1 - Janna Laan Lomas - BS124

In this episode of the Building Sustainability podcast, I am excited to welcome back architect Janna Laan Lomas, who shares her journey of building a sustainable home in Herefordshire alongside her partner, Seb, and her paren...
May 16, 2024

Chalk as a building material - Caroline Nicolay - BS123

A bonus episode with Archeologist Caroline Nicolay. The conversation explores building sustainable structures with chalk and earth materials, sharing experiences with chalk as a construction material and unique techniques lik...

About the Host

Jeffrey Hart Profile Photo

Jeffrey Hart

Producer / Host

As well as producer and host of Building Sustainability Podcast - I am a builder, focussed on building highly efficient homes from natural materials. I blend the tried and tested methods of heritage vernacular building with modern building and material science to create buildings that are healthy to the builder, occupant and the environment.
He/Him/HIs

Reviews

Full of all the good things!

"Lovely people talking about lovely things. Full of insight and practical advice, a post cast still of fun and generosity. Jeffrey’s interviewing style is great to listen too and his holistic approach…"

Rosie.Joy.Spoons | Aug. 10, 2020

Well paced, friendly ramblechats with carefully selected sustainability experts!

"As someone who works in digital design, I’m really thirsty for hands-on practical information about building sustainability in the real world. Jeffrey’s a lovely and respectful interviewer - so it fe…"

TomFoster85 | June 26, 2020

Perfect podcast

"I wish I had found this sooner. Great line up of interviews, all on the subject of sustainable building or side topics such as craft. Listened to one episode so far but am downloading a selection. …"

Duncan Bagel | June 26, 2020

Gentle, flowing, informative and easy to listen to.

"I first found this podcast series when after I saw Flo Hamer’s tiny house build on a YouTube - wanted to find out more and then discovered she’d done an interview Jeffrey Hart. The interview felt so …"

MartD | June 26, 2020

Dream Podcast

"If you had asked me what my ideal podcast line-up was, you couldn't have come up with a better range. I have thoroughly enjoyed all the podcasts so far and look forward to many more. A diverse rang…"

EWALJ | June 7, 2020

Daily listen

"I have been consuming this podcast for breakfast, lunch and dinner. Jeffrey is obviously an expert but also passionately invested in making our earth more habitable for longer. Every person he brings…"

rancherreebz | Jan. 28, 2021

I'm a changed man

"I never write reviews, but I’m writing this because this podcast is so incredible. I never become a patron, but I just started here because this podcast needs to continue! I never binge anything, bu…"

BertGrieves | Feb. 2, 2022