Welbeck is a multi storey car park designed by Michael Blampied & Partners for Debenhams department store just off London’s Oxford Street in 1968-70. The car park has a firm place in Britain’s Brutalist heritage. Its striking diamond-shaped facade, formed of pre-cast concrete panels, speaks of the bold optimism of its time as much as it speaks of ours: Welbeck is about to be demolished, despite protests and plans to save at least its facade. It will be replaced by a distinctly nondescript luxury hotel. Diamonds are not for ever, after all.