On a nostalgic revisit to the first ever Grand Design, from back in 1999, Kevin finds out if Tim and Jules are still flying high in their timber-framed home on the cliffs above Newhaven

In Northamptonshire, Adam and Tassy convert a 20-metre-high water tower into a fun family home with curved walls, slides, secret rooms, a firefighter's pole, swimming pool and a sky garden

Tony and Ara want to create a house of healing dedicated to health and wellbeing, on a beautiful woodland clearing near Henley-on-Thames. But the site is fraught with emotional landmines...

In West Yorkshire's rolling hills, Kara and Jonny build a striking stone and zinc home. The challenges come in thick and fast, but can they can pull it off and redefine what accessible design means?

In Lincolnshire, high-flyers Zara and Giuliano set out to build a 400-square-metre malthouse-inspired home, but run into problems from the get-go. Can they get the project off the ground?

Zahid and Ferzana ambitiously set out to transform an old coastguard station set on exposed East Yorkshire headland into a cantilevered, three-storey steel and glass box