Cuckoo Club Halloween 2026: Now 99 Regent Street, Mayfair

Cuckoo Club is now 99 Regent Street. The club on Swallow Street, a short walk from Piccadilly Circus, has changed its name: same building, new name. If you searched for the Cuckoo Club Halloween party, this page explains what that means for Halloween 2026 and where to go instead if you want a night confirmed now.

Halloween 2026 falls on Saturday 31 October, and most Mayfair clubs treat both Friday 30 and Saturday 31 October as Halloween nights.

Is there a Cuckoo Club Halloween party in 2026?

Not under the Cuckoo Club name, which is no longer used. As for 99 Regent Street, here is what is and is not known:

• Known: the venue formerly called Cuckoo Club now trades as 99 Regent Street, in the same Swallow Street building, nearest tube Piccadilly Circus.
• Not known yet: whether 99 Regent Street will run a Halloween night, what it will be called, its theme or its prices. No Halloween 2026 event has been announced for it.

Mayfair Halloween line-ups are usually announced in mid-October, so an announcement may still come. Until then, treat anything you see advertised as a "Cuckoo Club Halloween 2026" party with caution, and do not book through anyone who cannot tell you the venue's current name.

Halloween at Cuckoo Club in 2025 (history)

This page previously covered the Cuckoo Club Halloween party 2025. In 2025 the club traded as Cuckoo Club, across two floors with a different music feel on each, mostly hip-hop and open-format. Halloween was one of its busiest weekends, standard tables started from a £1,000 minimum spend, and tables booked out early. Those are last year's details under the old name, not a guide to 2026.

Open Halloween options near Swallow Street

If you want a Halloween table secured now rather than waiting on an announcement, these are the clubs around Piccadilly Circus and Mayfair that we book weekly. All of them open on Friday and Saturday nights.

London Reign is the closest like-for-like: a big production room on Piccadilly, minutes from Swallow Street. Cirque Le Soir is the choice for full Halloween theatre, with performers and a horror-carnival feel. Tape is the polished Mayfair option with a crowd that dresses up properly. For a smaller, darker room, Maddox on Mill Street is worth a look.

Tabu on Dover Street has also rebranded, as Rumour: see our Tabu Halloween page. For every option side by side, read our guide to the best Halloween clubs in London, or ask us through London nightclub bookings and we will send the available tables and a quote for your group.

Booking Halloween 2026 in Mayfair: what holds every year

• Book early. Halloween falls on a Saturday this year, the busiest possible combination. The best tables in Mayfair go first, and minimum spends for Saturday 31 October run above a normal weekend. Our guide to Mayfair table prices explains how minimums work.
• Guestlist closes early. Where a club runs a guestlist, it is usually for all-female or female-majority groups and fills sooner than usual on Halloween. Mixed groups and groups of men should plan on a table. More in our London guestlist guide.
• Costumes still meet a dress code. Mayfair doors keep their smart and elegant rules on Halloween. A polished themed look gets in; full-face masks, props, replica weapons and casual costumes over trainers are the usual refusals. See the London club dress code guide.
• Arrive by midnight. Doors open around 11pm and queues peak shortly after midnight. Arriving early with a confirmed booking is the easiest night.
• Getting home. The Saturday Night Tube runs on the Piccadilly, Victoria and Jubilee lines through Piccadilly Circus and Green Park, so Halloween night has a late route home. The clocks go back a week earlier, at 2am on Sunday 25 October, so there is no extra hour on Halloween itself.

For the large ticketed Halloween raves and warehouse parties outside Mayfair, Time Out keeps a running list of Halloween club nights in London.