Following people trying to build a house on less than £100k. Jason and his Finnish wife Riikka don't want a big house, but one which perfectly fits their needs.

Following people trying to build a house on less than £100k. Can you build a family home for just £50k? Neil and Amanda give it their best shot.

With people forced to find their own solution to the UK housing crisis, Kieran Long and Piers Taylor help novice builders discover ingenious ways to turn ordinary homes into extraordinary ones for under ú100k. Kevin and Lesley have designed an eye-catching home which echoes the waves of the nearby sea. Piers Taylor isn't as enthusiastic about the wave shaped roof as the couple, but is far more concerned that they haven't focussed on how they will actually use the spaces. Kieran shows them a house in Dungeness where tricks on every scale are at play, from windows framing features in the view to flooring gently drawing your eye from room to room. As Lesley and Kevin battle on, we return to the most ambitious build ever featured in the series and nine years in the making. Kieran and Piers return to help farmers Sue and Tim who are finally fitting out the interior of their ambitious cantilevered home. But with less than ú10k to spend, what will the completed interior look like?