Paul and Blanka hope to build an ambitious and cheap eco-home. But the project costs the family more than they bargained for - not just financially.

A pair of 20somethings take a risk building their first home together using an untested method. And a father and son hope to bond building a family home with space for all.

A couple of engineers plan an upside-down house. Garrie is building the largest project on the street. The stakes are high though as his wife Sue has health issues.

Kevin McCloud follows the last of the self-build projects, as married couple Pauline and Godfrey seek to downsize to a modular, factory-built home that is erected in just two weeks