Helen Gould and Phil Reddy wanted their home to make the most of spectacular views, but they also wanted it to be ecologically friendly. Their solution was to build an earth-sheltered home, with most of the house built into the hillside.

Kevin McCloud catches up with Rupert and Julie Upton. The three-year build on the picturesque slopes of the Berkshire Downs was wracked with hold-ups, set-backs and spiralling costs but the gardens have now been landscaped, and the timber frame has aged in colour from honey to silver as the property settles down into its outstanding rural setting.