George Clarke's back with more amazing small space designs. He meets a couple creating a disappearing bathroom and a man squeezing a camper into a Reliant Robin, and plans his hardest-ever build...

George meets a mum who's turning a shed into a haven and a couple creating a luxury home on a houseboat. He also visits a temple in Chile and continues to build his observatory.

George meets a couple crafting a magical den and an aircraft technician who's turning a jet engine into a supersonic camper. He also discovers some lip-smacking designs in a winery.

George meets a couple who turn a coach into a mobile home and a pilot who creates a garden den from a plane, and his observatory takes him to one of the world's largest telescopes.

George is back with more ingenious builds. He meets a couple who are turning an old fire engine into a bar, and a 23-year-old building a shepherd's hut from scratch.

George meets a master craftsman saving a Victorian circus wagon, and discovers a small hotel that's disguised as a tree and a camping pod that looks like a giant conker.

George meets one couple converting a camper into a mini HGV caravan and another turning a railway carriage into a retreat. And George and Will learn how to take photos with a beer can.

George looks back at his most ambitious big build - a 360-degree, gravity defying rotating house! In search of inspiration, George goes to Holland, Germany and the local fairground.

George looks back at his first ever big build - converting a £300 dilapidated caravan into a stylish holiday hideout for him and his kids, inspired by other ingenious conversions.