Meredith Bowles from Mole Architects shares his experience working with timber as a construction material and explains the benefits and drawbacks of the different build approaches. Check out the show notes for more information.

Alexx Stuart from Low Tox Life shares her experiences of toxic mould exposure and offers some advice on how best to keep your home healthy and mould free. Check out the show notes for more information.

Amelia Lee from Undercover Architect shares some common themes that tend to crop up on owner-builder projects (particularly with people who are doing this for the first time) and explains how they can be avoided by creating a clear foundation of your values and project intentions. Check out the show notes for more information.

Andy Marlow from Envirotecture explains why Passivhaus homes are a good fit for most climates in Australia, how they approach these projects and what is needed beyond shading to keep the homes comfortable when the outdoor temperatures soar. Check out the show notes for more information.

Sarah Lewis, the Research and Policy Director at the UK Passivhaus Trust and author of PHPP Illustrated, explains what the Passive House Planning Package (PHPP) is and how it is used during the design process. Check out the show notes for more information.

Janice Gardiner, an ecologist and the client of last week’s interviewee Josh Wood at Green Trace Architect, is here to tell us what it is like to be the client on a Passivhaus project and share what she has learnt from the experience. Check out the show notes for more information.

Architect Josh Wood gives us an insight into his own self build project, where the balance between keeping costs low and creating a sustainable home have pushed him to come up with creative solutions. By undergoing most of the work themselves, Josh and his partner Amy have been able to transform their snug, back garden plot, into a comfortable and energy-efficient home. Josh explains how thinking outside of the box may be an excellent option if you are looking to get on to the property ladder...

Architect Kirsty Maguire explains why reusing an existing building is always preferable to demolishing and rebuilding. However, when buildings are in terrible condition or need radical alterations to make them habitable we should be looking to reuse, recycle and reclaim as many materials as possible. Kirsty shows us that with intentional and sustainable design, you can create a new structure with a wealth of history. Check out the show notes for more information.

Jae Cotterell, founder of Passivhaus Homes, explains the importance of the choices we make when considering our construction approach. It is possible to create a high performance home with low embodied carbon that doesn't cost the earth if we understand the process, where the impacts lie and where optimisation can make a huge difference. Check out the show notes for more information.

Andrew Jones explains how to reclaim VAT on a self build home or conversion as well as sharing some common pitfalls to avoid. Check out the show notes for more information.

Mark Brinkley, author of the Housebuilder's Bible, explains how his book can guide you towards building a better home. He also shares some of the themes that have cropped up while he's been editing the latest edition. Check out the show notes for more information.

Luke Smith from Build Test Solutions talks about making building performance measurement more commonplace, and how you can't manage what you don't measure. Check out the show notes for more information.

Dr. Derek Taylor talks about advances in wind and solar power over the last 50 years. Check out the show notes for more information.

Ben Adam-Smith marks five years of living in his Passivhaus home by reflecting on his self build journey and what the house has been like to live in. Check out the show notes for more information.

Anne Thorne talks through the architectural design process of Cannock Mill Cohousing community. Check out the show notes for more information.

Jonathan Dixon talks about incorporating home automation into a Passivhaus retrofit of a 1960s detached house, built using cross wall construction. Check out the show notes for more information.

Ludka and Brendan Powell explain the Welsh ‘One Planet Development’ scheme and how it led them to building an off-grid, straw panel Passivhaus. Check out the show notes for more information.

Tom Gwilliam explains what Energy Performance Certificates (EPCs) are, how they are created and why they are unlikely to be a useful measure of how energy efficient a building is. Check out the show notes for more information.

Alan Clarke explains the role of a mechanical services engineer on a low energy house build, in designing a heating and ventilation system that works efficiently and is affordable. Check out the show notes for more information.

Andy Moger, from Tetlow King Planning, explains the role of a planning consultant and the benefits they can bring to a project. Check out the show notes for more information.

Beth Williams from Build Collective outlines the role of a structural engineer and explains what tasks might be undertaken on a house build. Check out the show notes for more information.

Martin Twamley from Steico explains how to use breathable internal insulation, while avoiding the risks of condensation and mould. Check out the show notes for more information.

As someone with no previous interest or skills in DIY, Passivhaus Consultant Es Tresidder explains why he went about changing that for his own deep retrofit project. Check out the show notes for more information:    

Landscape Architect and Director of HLM Architects, Simon Bell, explains why he decided to upskill when it came to building his own house. Check out the show notes for more information.