Hedgehog heaven is the garden of a Carmelite convent in west London. The prickly creatures are an endangered species in Britain – but when the Royal Borough of Kensington and Chelsea undertook a survey of potential habitats, they came up with the perfect haven: the 3.5-acre garden of the Carmelite convent of Notting Hill. “It’s surrounded by a 22ft-high wall, and the only way out is through the enclosure gates – so the hedgehogs are safe from predators and from traffic,&