NEW BUILD

Grand Designs, 9pm, Ch4

IN A bid to alleviate their two young sons’ potentially life-threatening allergies, Born and Elinor Barikor came up with the idea of building a cuttingedge ‘healthy house’ in leafy Richmond, South-West London. But, as Kevin McCloud finds, having to use low-toxin materials gives an already tricky project an added frisson of anxiety . . .