When Rupert and Julie bought a hilltop site in the Berkshire Downs, they were determined to build a house that would make the most of the countryside and stunning views.

They turned to architecture firm Roderick James, which specialises in modern design and traditional timber craftsmanship. Together with architect Hugh McGann, they came up with a house of green oak and glass, built in an unusual cruciform (cross) shape.

With a plot of land in Sussex overlooking the South Downs, newly-weds Jane and Willem wanted a house that would be atmospheric and open to the countryside. Inspired by memories of America, Jane planned a New England-style gabled house with large windows to make the most of the views.

A derelict woollen mill in a Yorkshire village may not say 'modernist' to everyone. But Chris and Gill - who, fortunately, run their own specialist joinery business - saw it as the perfect opportunity to create a visionary home. They liked the traditional brick of the building and opted to keep the exterior virtually untouched. Inside, they would strip everything out and make a home of fluid spaces, based around an open-plan ground floor, an atrium and a galleried upper floor.

An isolated hilltop in the Brecon Beacons might seem an inhospitable place for a couple's first home. But Adrian and Corinna both grew up in the area, and the ruined farmhouse they chose to restore had been in Adrian's family for generations. The site's lack of mains water and electricity gave them no qualms. True, the track up the hill was often inaccessible in winter. But the landscape was beautiful and they both felt they belonged there

Helen and Mark had always dreamed of owning a Georgian house but knew they couldn't afford the genuine article. So they decided to build their own. They bought a large plot of land in Surrey, surrounded by trees, and commissioned an architect who specialised in conservation architecture to design it.

Kevin checks out an innovative housing scheme set up by a Birmingham Housing Association, which allows a group of people to build their own homes

Kevin McCloud visits a couple who are looking to build their hi-tech modern house in a quiet north London street.

Kevin McCloud visits a couple in Devon who are hoping to convert a traditional barn complete with thatched roof.

Kevin travels back to Doncaster to catch up with self-builders Michael Hird and Lindsay Harwood and their futuristic glass and steel house in a suburb of Doncaster.

Kevin McCloud revisits an innovative housing scheme in Birmingham. Just over two years ago a group of 11 men and women agreed to build, not just their own, but each other's homes.

Kevin McCloud revisits Adrian and Corrina, who decided their first home was to be a 300-year-old ruin. The former cottage is set in the inhospitable climate of the Brecon Beacons National Park.

Kevin revisits Tony and Sharon, who fell in love with a completely dilapidated Georgian home in London and undertook the challenging task of restoring it to its former glory

Kevin is in Amersham to update on a project taken on by Deborah and architect Andrew. Their venture involved designing an 'invisible' house that blended in with the surrounding reservoirs.