Celebrity edition of the quiz, with Kieran Long, Piers Taylor, Martin Roberts, Amanda Lamb, Vicki Butler-Henderson, Tiff Needell, John Hammond and Laura Tobin. Show more

Piers Taylor and Caroline Quentin explore extraordinary homes built underground. In the Swiss Alps, a four-bedroom house has to be accessed via a tunnel. Show more

Piers Taylor and Caroline Quentin explore extraordinary homes built in mountain locations around the world, meeting the owners and architects. Show more

Piers Taylor and Caroline Quentin explore extraordinary homes built in forested areas around the world, meeting the owners and architects. Show more

Piers Taylor and Caroline Quentin visit extraordinary homes built in coastal locations. In Norway, they stay in a four-bedroom house built on a footprint of 100 square metres. Show more

Kieran Long and Piers Taylor come to the aid of homeowners as they take on ambitious building projects. In this programme they help former nurse Dawn with her tiny cottage. Show more

Kieran Long and Piers Taylor come to the aid of homeowners as they take on ambitious building projects. This time, they help Sue with her previously unloved 1920s semi-detached. Show more

Kieran Long and Piers Taylor help homeowners as they take on ambitious building projects. This time, a home unsuitable for family life needs a bold architectural solution. Show more

Kieran Long and Piers Taylor help homeowners as they take on ambitious building projects. A dark bungalow and a 'DIY war zone' need expert help to be revamped on small budgets. Show more

Kieran Long and Piers Taylor take on ambitious projects. A couple try to extend their Victorian terrace house while a charity worker hopes to revamp her kitchen with just £3,000. Show more

Kieran Long and Piers Taylor take on ambitious projects. A couple want to transform their chaotic warehouse apartment into a tranquil family home. Show more

Following people attempting to build their own house from scratch. Martin Whyment from Leeds has an ambitious plan to build a four-bedroom house in the city centre. Show more

Following people attempting to build their own house from scratch. Sumati Bala tries to build a new home and a site for her cookery school on just £50,000. Show more

Following people attempting to build a house from scratch on less than £100k. Farmers Ruth and Tony try to build a new farmhouse and aim to do it all by themselves. Show more

Following people attempting to build a house from scratch on less than £100k. Young couple Tom and Zoe aim to build a unique property on just £90k. Show more

Following people attempting to build a house from scratch on less than £100k. Jane and Andy look to build a self-sufficient home in an eco-community in west Wales. Show more

Following people trying to build a house on less than £100k. Newly engaged couple Mary and Justin look to build a house in rural Devon on a very small budget. Show more

Following people trying to build a house on less than £100k. Piers and Kieran help Sholto and Marcus turn a budget kit home into something extraordinary. Show more

Following people trying to build a house on less than £100k. Andrew and Claire have ditched their 9-to-5 lives and gambled everything on a free-range egg farm. Show more

Following people trying to build a house on less than £100k. Jo'ann and Andy are attempting to build a home that will never produce a heating or electricity bill. Show more