50 Berkeley Square

50 Berkeley Square: The Most Haunted House in London, or the Best-Told Ghost Story in London?

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The exterior of 50 Berkeley Square in Mayfair, London, a four-storey Georgian townhouse with a black front door numbered 50, iron railings and a blue plaque, photographed from street level under a clear blue sky

About 6 min readFor more than a century, a plain Georgian townhouse in Mayfair was called the most haunted house in London. Its attic room was said to drive visitors mad or kill them outright — yet no named victim has ever been verified.