David and Penny Learmonth share their experience of building an ultra low energy home on a budget. They also project managed this themselves.

Fran Bradshaw from Anne Thorne Architects shares her experience of building an ultra low energy home using natural materials such as straw bales, lime render and clay plaster. The house is also aiming for the Passivhaus standard.

Ben Adam-Smith looks at some of the essentials that you need to understand if you are going to create an energy-efficient house. There is more detail in Ben's new e-book: Why Most People Don't Build Energy-Efficient Homes.