There’s a bit of a bun fight over this. Some folks point to a shop called Sainsbury’s in Croydon, which opened in 1950. But that was just a bigger self-service shop.
The real first proper supermarket—the one that changed the game—was Preston’s Supermarket in Brentwood, Essex. It opened its doors on March 26, 1951.
Yes, a whole year before Sainsbury’s got its big idea. The history books give the crown to Preston’s.
The Man Behind the Trolley
The hero here is a chap named John Preston. He was a local grocer with a wild dream.
He’d seen the future in America. You know, those huge stores where you grab your own stuff and push it around in a wire cart? He thought, “Why can’t we do that in damp, post-war Britain?”
Everyone told him he was mad. “People won’t serve themselves!” they cried. “It’s un-British!”
