

House Planning Help Podcast
Ben Adam-Smith
If you want to build a house, where would you start?
Episodes
Mentioned books

Mar 28, 2026 • 1h 11min
HPH398: What does it take to create a bio-based Passivhaus? – with Janna and Seb Laan Lomas
Janna and Seb Laan Lomas explain the ethos behind their self build which blends low energy design and natural building while reducing plastics in the construction and also minimising waste. The level of detail, the decisions made and the careful use of the budget have been instrumental in delivering this fantastic project, which makes a great home for them as well as a site that encourages wildlife. Check out the show notes for more information.

Feb 23, 2026 • 51min
HPH397: Sheep's wool insulation and other natural fibre options – with Mark Lynn
Mark Lynn from Eden Renewable Innovations explains how sheep's wool insulation is made, outlines the pros and cons, and suggests how it is best specified and installed. He also shares some common traits of natural fibre insulation as a category. Check out the show notes for more information.

Feb 9, 2026 • 48min
HPH396: Getting planning permission for a replacement dwelling – with Mark Doodes
Mark Doodes, a chartered town planner who advises on residential and replacement dwelling planning, walks through what submitting a demolish-and-rebuild application involves. He explores where to start with planning research. He covers green belt strategies, permitted development tactics, designing for local context, common refusal reasons, realistic timelines and using fallbacks and pre-purchase assessments.

Jan 26, 2026 • 41min
HPH395: How easy is it to insure a natural building? – with Dr. James Glockling
Dr. James Glockling explains how insurance works and outlines some of the challenges of insuring a natural building. Check out the show notes for more information

Jan 8, 2026 • 45min
HPH394: Could you automate air sealing on a house build? – with Hugh Franklin
Hugh Franklin from Aeroseal UK explains how the airtightness of a building can be improved using a water-based, low VOC atomised polymer which is delivered when the building is pressurised. This simpler approach speeds up the process of air sealing and gives real-time feedback on the airtightness score. Check out the show notes for more information

Dec 17, 2025 • 39min
HPH393: How can you reduce the embodied carbon of a project? – with Elly Deacon Smith and Kirk Rushby
Elly Deacon Smith and Kirk Rushby from Arbor Architects explain why they consider the embodied carbon of their projects, how they do it and how it is balanced with competing factors. Check out the show notes for more information.

Dec 3, 2025 • 54min
HPH392: What's the difference between good and bad retrofit? – with Marion Baeli
Marion Baeli, author of "Residential Retrofit," offers hands-on experience of designing and retrofitting high performance homes. As well as drawing on her personal retrofit she shares the lessons learnt from revisiting properties that took part in the Retrofit for the Future competition over a decade ago. Check out the show notes for more information.

Nov 19, 2025 • 45min
HPH391: Earth floors – with Jeffrey Hart
Jeffrey Hart from the Earthen Floor Company gives us the lowdown on natural earth floors, explaining what the components are, how they are mixed and the process of installing them. He also outlines the benefits and limitations, and highlights what makes them a great choice for an eco home. Check out the show notes for more information.

Nov 5, 2025 • 40min
HPH390: Practical considerations when looking for a plot of land – with Ben Adam-Smith
Ben Adam-Smith shares a few thoughts about what to look for in a plot of land for a low energy house build. Check out the show notes for more information

Oct 22, 2025 • 52min
HPH389: Air-to-air mini split heat pumps – with Es Tresidder
Es Tresidder from Highland Passive explains what an air-to-air mini split heat pump is, why he believes it's a good choice for heating a high performance home and the various pros and cons of going down this route. He also reflects on one of the toughest stages of his retrofit when they took the roof off the existing dwelling and then faced torrential rain. Check out the show notes for more information.


