Heidi grew up in the idyllic breathtaking countryside near Inverness, but she and husband Steven can't possibly afford a home there. They've decided to try and build one, but their strategy is a risky one. Unable to raise enough savings to secure a mortgage for the build, Heidi's parents have agreed to temporarily remortgage their own home to fund the £70K build cost!

Having spent the last five years living in a caravan, Sue and Tim are setting out to prove they can build a low-cost contemporary farmhouse without scrimping on aspiration.

Alistair and Karen hope that building a family home in County Antrim, Northern Ireland, could be the key to a mortgage-free life. Alistair grew up close by and wants his son to have the same childhood he had, surrounded by farmland and playing in the stream. The design must meet the needs of an uncertain future - Alistair was recently diagnosed with MS so they have designed the home with wheelchair access in mind.