Builders Episodes

Swifts are among the most remarkable birds on Earth — they sleep on the wing, migrate thousands of miles, and return each year to nest in the same tiny holes in our buildings. But as we insulate, repoint, and renovate, those nesting sites are vanishing — and so are the birds. This week, Jeffrey speaks with Hannah Bourne-Taylor — author, activist, and the powerhouse behind the campaign to mandate “swift bricks” in all new UK homes. From raising wild birds in Ghana to walking naked through West...

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 modular systems can reduce waste and speed up building, and the complexities of bringing sustainable solutions to market. Topics covered: Chloe’s journey from the voluntary sector to sustainable construction The origins of Natural Building Systems and its mission Why ...

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, highlighting the transformative power of materials like clay and hemp in creating spaces that feel alive, healthy, and grounded. We dive into: The challenges and creativity sparked by constraints in renovation projects. Why natural materials like clay plaster and he...

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 hempcrete to creating stunning clay archways, Sigi discusses the challenges, surprises, and joys of renovating a home with natural materials. We explore: The differences between renovation and retrofit—and why Sigi sees her project as the ultimate retrofit. Creativ...

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 Orkney, which draws on the land’s Neolithic history, combining locally sourced earth materials to create tactile art pieces that celebrate and reflect the landscape. Becky explains the influence of geology and place on her work, touching on the ancient methods and mate...

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 across West Wales – including the anarchic Tipi Valley, and the farm community Brithdir Mawr. He has lived in tipis, yurts and roundhouses, and travelled by horse-drawn wagon. With a background in architecture and carpentry and a passion for social structures, his experi...

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 talk about the importance of fresh air in your building, how C02 will make us unhealthy and sluggish, plus the best way to get the fresh air without losing all your heat. Grain Architecture - https://www.grainarchitecture.co.uk/ Architype - https://www.architype.co.uk/ Llama...

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 parents. We discuss the unique multi-generational aspect of their project, the thoughtful design considerations that have shaped their vision, and the innovative construction methods they are using, such as screw pile foundations and timber frames filled with cellulose insulation...

Caroline Nicolay discusses natural building and archaeology. We explore ancient techniques like mineral pigments and casein paints, debunking stereotypes of primitive living. Caroline shares her experiential archaeology journey, transitioning from historical food research to pigments in prehistory. We delve into ancient paint usage, lime in construction and making paint from natural materials like clay and minerals. The conversation touches on tempera paint, historical recipes using dairy produ...

How to Build a Roundhouse - Part 2! Be sure to check out Part 1 first. Episode links Wholewoods - https://wholewoods.co.uk/ Buildcamp - https://www.instagram.com/buildcamp/ Tony Wrench Roundhouse - https://www.thatroundhouse.info/. https://en.wikipedia.org/wiki/That_Roundhouse Buglife (invertebrate roofs) - https://www.buglife.org.uk/ Center for ancient technology - https://ancienttechnologycentre.com/ Bill Coperthwaite - https://www.insearchofsimplicity.net/ BOOK - Bill Copperthwaite - A hand...

Adrian Leaman from Wholewoods delves into the world of roundhouses and sustainable building practices. The conversation spans from building advice to foundation methods and the importance of using the right timber species in construction. We also discuss different types of roundhouses, techniques for building ring beams and the practicality and sustainability of round structures. Join us as we share experiences and insights into the unique world of roundhouse construction. Episode links Wholewo...

Today I'm joined by natural builder Julz Baker from Unearthed to talk about the lessons he learned from running a natural building company. It's a frank chat about some of the pitfalls that may await new natural building businesses ... and a whole load of tangents and material chat. Episode links Unearthed - https://www.instagram.com/unearthed_build/ Lewes Bonfire Society - https://www.lewesbonfire.com/ Kind Supply - https://www.kindsupply.uk/ Old Tree Brewery ( Kombucha - not a sponsor! Just ...

In this episode, Vanessa explores the fascinating world of biophilic design and its potential impact on sustainable and ethical practices. We delve into the use of clay, earth materials, and mushroom mycelium as tactile and eco-friendly alternatives. The episode also touches upon the challenges of promoting green alternatives in mainstream industries and the potential positive effects of biophilic design on employee ethics and productivity. Lastly, Vanessa highlights the growing popularity of b...

From Robotic Arms to Cork Bricks

Architectural Character and the Power of Plant Based Materials

So much more than a show park

Circular Economy for Sustainable Construction

Ever felt weary in a dull, grey office? Touched a piece of handcrafted wood and felt a strange sense of connection? Wondered why a bottle of earthworm medicine from the 1700s is significant? Our guest, Sally Coulthard, has! A best-selling author and columnist who explores the fascinating world of biophilic design, craft, and curious objects from history. We start by looking into the intriguing territory of biophilic design. Sally throws light on how our built environment impacts us physiologica...

Prepare to be enlightened as we enter the captivating world of sustainability and crafting with best-selling author and countryside expert, Sally Coulthard. Sally breaks the mould with her diverse interests, sharing her journey from her first book about organic living to her exploration of the intersection of people, history, and nature. Let Sally inspire you with her love for practical interests and her belief in the value of being open to learning new skills and absorbing new information. We ...

Are you ready to embark on a journey that blends architectural innovation with environmental sustainability? Come along as I engage in a vibrant discussion with the gifted duo, Jo Bolton and Matt Whitaker of Abundant Earth. We delve into the captivating process of constructing a straw bale house that exists in harmony with its natural surroundings. It's not just a house, but a tribute to human ingenuity and a testament to the beauty of nature. The tale doesn't stop at the mere structure; it's t...

Ever wondered what it's like to create an intentional community from the ground up? Join us for a heartwarming conversation with Jo Bolton and Matt Whitaker, co founders of Abundant Earth, as they share their journey of building a sustainable, off-grid life for themselves and their families. With experiences ranging from living in cabins on the outskirts of Newcastle to navigating the planning permission process, Matt and Joe have come a long way, and their story is sure to inspire and uplift an...

Ready to kickstart your career in natural building and sustainable construction? Join us as we celebrate our 100th episode in the company of Allstar Natural Builders - Becky Little, Julz Baker, Em Appleton, Dylan Walker, and William Stanwix. Learn from these inspiring professionals as they share their experiences, advice, and pathways into this growing industry. Discover the diverse journeys our guests took to enter the world of sustainable building, from traditional brickwork apprenticeships t...

Marianne Suhr is a Chartered Building Surveyor specialising in the repair of older buildings. We talk about the role of a building surveyor, the SPAB and how to go about sympathetically retrofitting an old building. Episode links: This episode link - https://www.buildingsustainabilitypodcast.com/old-house-retrofit-and-SPAB-marianne-suhr-bs098 Marianne's company website - http://oldhouseconsultancy.co.uk/ See Marianne in person at the Homebuilding and Renovation show - https://www.homebuildings...

This is the second part of my conversation with Kirsty Cassels. In this episode, we hear about Kirsty's experience as a joiner in the TV industry, her work promoting workwear for women, certifying natural products and the Prince's Foundation... as well as other side meanderings. Episode links: Workwear for women - https://www.instagram.com/workwear_for_women/ Kirsty's building work - https://www.instagram.com/building_cassels/ Kirsty's design work - https://www.instagram.com/creative_cassels/ ...