The brand-new series of 'Grand Designs' is as involving and entertaining as ever. It opens with an ambitious upside-down New Zealand-inspired hill house clinging to a steep slope in the Malverns - built by an ex-RAF pilot and a GP who bought the plot on the internet without seeing it first. To follow there's an innovative Tardis-like space-saving home squeezed into a tiny corner of East London devised by a young inventor. There's a unique horseshoe-shaped retro courtyard house on the ancient grounds of an abbey in Hertfordshire and a giant ground-breaking shed-inspired barn for a young family in County Down. In North London there's a reconstructed old lodge melded to a giant black cube of a house for two neurologists. On the edge of a beautiful village in the Peak District National Park is a super-eco hidden house buried in a slope and in South London a derelict old dairy is transformed into an ultra-chic family home. And then there's the swirling snakeskin-roofed super-house nestling in the Blackdown Hills of Devon inspired by an ammonite shell. Kevin McCloud is there to share the emotional highs and lows of those willing to put everything on the line to create homes they hope will transform their lives forever.