‘I would never spend that much on a kitchen!’: Grand Designs’ Kevin McCloud on money, ambition – and expensive mistakes

For more than 20 years the designer and presenter has shown viewers what it really costs to build a dream home. He talks about the frayed emotions, failure and why the UK needs radical land reformThe first couple of episodes of the current series of Grand Designs have already aired, but – as if it was itself an over-running building project – Kevin McCloud is still filming. When we speak over Zoom, from the small studio he set up “in a cupboard”, he has only just got home