12th Knot · Rooftop Bar · London
12th-floor rooftop cocktail bar of Sea Containers London (the former Mondrian) on the South Bank
12th Knot is the 12th-floor rooftop cocktail bar of Sea Containers London (the former Mondrian) on the South Bank, a wall of floor-to-ceiling glass framing one of the capital's best north-bank panoramas of the Thames and the City skyline.
The room is bright and striking, not moody, pairing velvet lounge seating and a marble bar with a small open-air terrace that closes at 10pm under licensing rules. Cocktails are the draw, alongside Champagne, wine and small plates built on seasonal ingredients. Fridays bring the Fry-Day Feeling, bottomless curly fries paired with martinis, and Wine Down Wednesdays cuts bottled wine by half from 5 to 7pm.
Weekend DJs take over on Saturday evenings with afrobeats, house and R&B, giving the room a glamorous, after-dark buzz heading into the night. The bar trades Tuesday to Saturday; Sunday and Monday it is closed.
Reserve through SevenRooms, especially for weekend and sunset tables; the terrace itself runs first-come, first-served. Dress code is smart-casual, no sportswear or flip-flops, and the room is strictly over-18s.
Address: 20 Upper Ground, South Bank, London SE1 9PD, United Kingdom, London
12th Knot takes reservations through SevenRooms. This MyRSVP guide covers the room, what it is known for and when to go in London; use the booking link on this page to reserve direct.
Hours of operation
- Tuesday: 17:00 - 00:00
- Wednesday: 17:00 - 00:00
- Thursday: 17:00 - 00:30
- Friday: 17:00 - 00:30
- Saturday: 16:00 - 00:30
Frequently asked about 12th Knot
How do I book a table at 12th Knot in London?
Reserve directly through 12th Knot's own booking platform, using the button on this page. The confirmation comes from the venue.
How much is a table at 12th Knot?
Prices at 12th Knot are set by the venue and vary by night and by where you sit. Ask the venue directly if a minimum spend applies.
What is the dress code at 12th Knot?
Smart attire is recommended. The venue sets its own dress code and can change it, so check its policy before you go.
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