77 London — also written Seventy Seven — is a 550-capacity electronic music club in the basement of The BoTree hotel on Welbeck Street, Marylebone. It was designed by Concrete, the Amsterdam studio, as a deliberately asymmetrical room lit by synchronised gold and silver LED, and it is one of the few rooms in this part of London booking dance music seriously.
It is one of the easier central London birthdays to organise, because the whole night can happen at one address.
Dinner, Club, Rooms — One Building
The BoTree upstairs has a bar and restaurant, 77 is in the basement, and there are rooms above. For a birthday that means no cabs between venues, no group lost in transit at 11pm, and somewhere for people to stay if it runs late. Few London clubs can offer that.
What a Birthday Table Includes
- Entry for the whole group
- A reserved booth held in the birthday name — ask for the mezzanine
- Bottle service with mixers, ice and glassware
- A host looking after the table all night
- Sparklers and a bottle presentation on request
- Free booking and planning support from London Night Guide
Cost
Tables start at £1,000 minimum spend, higher on headline nights. Across ten guests that is £100 each with entry included, and all of it comes back as drinks.
Why the Room Suits a Group
The mezzanine booths overlook the dance floor, so a birthday group is not parked away from the night. And at 550 capacity there is space to lay out a party of twelve or more without splitting it across the room — harder to do at the smaller Mayfair clubs.
Planning Notes
- 18+ works here. Unlike some central rooms, 77 holds at 18+. See the age policy.
- Check who is playing. The door and the minimum both move with the booking, so pick the date around the night you want.
- Confirm the headcount. Adding guests later can move the minimum spend.
- Brief the group on dress. No trainers or hoodies. See the dress code.
- Book dinner upstairs if the group is large — it keeps everyone in one place before the club opens.
How to Book
Send us the date, the group size and a rough budget. We come back with availability and the minimum spend for that night, hold the booth in the birthday name, and arrange sparklers if you want them. No booking fee.
See the full table booking guide, or browse birthday packages across London.