The Halloween Affair | Mayfair Halloween Party
The Social Seen × Business Social Club
One Address. Three Floors. One Unforgettable Halloween Night. 🥂🖤
This Halloween, we're heading to the heart of Mayfair for an extraordinary evening of mystery, glamour, music and celebration!
Join The Social Seen × Business Social Club as we bring our communities together for The Halloween Affair at 11 Berkeley, home to Chargal, one of Mayfair's exciting new nightlife destinations.
For one night, this stylish Mayfair venue transforms into an immersive Halloween experience, combining sophisticated cocktails, DJs, dancing and an electric atmosphere across three floors.
Whether you're coming with friends or joining us solo, expect great company, new connections and a Halloween celebration with a touch of Mayfair glamour.
🥂 Event Details
📅 Friday, 30 October 2026
🕘 9 PM – 2 AM
📍 11 Berkeley | Chargal, Mayfair, London
11 Berkeley Street, London W1J 8DS
🎟️ Tickets from £25, including a welcome drink
🎭 Dress Code: Halloween Glamour — creative costumes, elegant attire, mysterious masks and sophisticated Halloween looks. Dress to impress, dress to disguise!
✨ What to Expect
🎧 DJs & Dancing — House, commercial music and club anthems throughout the night
🍸 The Brasserie — Cocktails, music and a beautifully transformed Halloween setting
🪩 The Lounge — An underground nightclub experience with DJs and a dance floor
🥂 Great Company — Meet new people, reconnect with friends and enjoy the evening with our social communities
🎭 Halloween Glamour — An elegant, mysterious atmosphere in the heart of Mayfair
🖤 A Night to Remember
Forget ordinary Halloween parties. Think stylish costumes, atmospheric interiors, fabulous cocktails and conversations that turn into dancing.
Come for the mystery, stay for the company, and let the night unfold!
Spaces are limited, and tickets are released in stages, so early booking is recommended.
Important Information
Strictly 18+. Valid physical photo ID required. The venue enforces a smart Halloween dress code. No sportswear, hoodies, tracksuits or excessively casual clothing. Entry is subject to venue security, capacity and admission policies.
The Social Seen × Business Social Club are bringing our communities together to attend The Halloween Affair, an event organised by 11 Berkeley. Our group participation does not constitute organisation of the venue's main event.