Barts

Barts London's worst kept secret and first speakeasy cocktail bar, hidden somewhere on Sloane Avenue. Pssst… Become part of London’s worst kept secret!
(614)

Somewhere on Sloane Avenue lies Barts, one of London’s first late-night speakeasy bars. Set in the 1920’s prohibition era as the private apartment of the elusive Uncle Barts, friends and associates are invited to join in the bootlegging activities operated by his gangsters. Sneak into the apartment through the black door to gain access to illicit cocktails and top secret shindigs, where you can also smuggle drinks into the Secret Garden to evade the cops! Visit our shady associates for secret trysts and covert merrymaking at Barts.

International relations are rather important to Uncle Barts. 🥃🌍So, ahead of his latest gathering of great minds, he’s be...
19/09/2026

International relations are rather important to Uncle Barts. 🥃🌍

So, ahead of his latest gathering of great minds, he’s been strengthening family ties the only way he knows how… over a very good drink.

Inspired by a rather special delivery of Italian coffee from Cousin Ugo, Uncle Barts has created a collection of Espresso Martinis, each with a taste of home.

🇫🇷 GREY GOOSE® Vodka for Nephew Clement
🇮🇹 Borghetti for Niece Steffania
🇲🇽 Patrón Tequila Silver & PATRÓN XO for twins Santiago & Luna
🏴󠁧󠁢󠁳󠁣󠁴󠁿 12 Year Old for Grandad Jock

Four relatives. Four nations. One family affair.

Consider yourself invited to Uncle Barts’ latest diplomatic gathering. 🍸

Why Barts? Scroll and find out 🗝️
17/09/2026

Why Barts? Scroll and find out 🗝️

11/09/2026

Step back in time to the 1929 Prohibition era in one of London’s first speakeasy bars, disguised as the apartment of the prolific Chicago gangster, ‘Uncle Barts’!

📍 Inside Chelsea Cloisters, Barts

05/09/2026

You’ve just found Chelsea’s hidden speakeasy that turns into a nightclub after dark. 🍸🪩

27/08/2026

Whisper the secret password at this hidden speakeasy entrance in London…🚪

📍 Barts, Chelsea

22/08/2026

A speakeasy you’ll find hard to keep a secret 🤐

📆 Speakeasy Sundowns, after 11pm, Thursday - Saturday ✨🍸👀

15/08/2026

If anyone asks, you were never here. 🍸

Chelsea’s worst-kept secret, hidden behind an unassuming door and strictly for those in the know.

Cocktails flowing. Music playing. Mischief encouraged.

📍 Barts, Chelsea
🤫 Keep it to yourself, would you?

14/08/2026

What’s hidden behind this Secret black door within Chelsea Cloisters?
📍 Barts

Enter the mysterious world of Uncle Barts until 2:30am✨ Located somewhere in the Chelsea Cloisters, join us for an illic...
08/08/2026

Enter the mysterious world of Uncle Barts until 2:30am✨ Located somewhere in the Chelsea Cloisters, join us for an illicit tipple or two at our famous late-night parties, featuring live DJs🍸🔑

06/08/2026

When you walk through a door inside a Chelsea hotel and end up at a speakeasy bar! 🤫

📍 Barts, Chelsea

Address

Chelsea Cloisters, 87 Sloane Avenue
London
SW33DW

Telephone

+442075813355

Website

Alerts

Be the first to know and let us send you an email when Barts posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Barts:

Shortcuts

Share