It is home to Manetta's Bar, the original hangouts in the 1930s for famous artists and literati of the day; and Ormer Mayfair, a fine-dining restaurant under the direction of Sofian Msetfi.

Ormer Mayfair was awarded its first Michelin star in 2024, four AA Rosettes, and is consistently voted one of the top restaurant for fine-dining in London.

In 1851, Robert Fleming owned and ran a lodging house at number 10 Half Moon Street (believed to have originated in 1730).

[1] From 1855 to 1857, George Hudson, MP for Sunderland, owned apartments in the hotel.

Hudson, famed as the 'Railway King', was a fraudster who had his downfall when he was discovered to have falsified railway company share prices.