One Marylebone
Where history, style, and flexibility meet.
One Marylebone offers four unique spaces under one roof, each with its own character. From grand banquets to intimate gatherings, late-night parties to open-air receptions, the venue adapts to every kind of event.
Our Rooms
The Soane Hall
Capacity: 300 seated; 500 standing; 350 theatre style
Best for: Gala dinners, award ceremonies, large weddings, product launches, concerts, conferences.
Why: As the venue’s showpiece, Soane Hall combines soaring ceilings, stained-glass windows, and grand columns with complete flexibility. It’s billed as “London’s ultimate banquet hall” — equally powerful dressed in classic finery or bold, branded production.
The Galleries
Capacity: 100 seated (per wing); 320 standing; 170 theatre style (per wing)
Best for: Receptions, exhibitions, networking events, showcases, breakout sessions.
Why: Flooded with natural light through floor-to-ceiling windows, the Galleries provide a contemporary contrast to the grandeur of the Hall. They can stand alone or work alongside the Soane Hall as reception and exhibition areas.
The Vaults
Capacity: 60 seated (mezzanine), 100 seated (basement); 100 standing (mezzanine)
Best for: Afterparties, immersive brand activations, intimate dinners, screenings, live entertainment.
Why: Atmospheric and versatile, the Vaults offer a striking underground setting across two levels. With a licence until 3am, they’re perfect for events that don’t want to stop when the main party ends.
The Galleries
Capacity: 100 seated (per wing); 320 standing; 170 theatre style (per wing)
Best for: Receptions, exhibitions, networking events, showcases, breakout sessions.
Why: Flooded with natural light through floor-to-ceiling windows, the Galleries provide a contemporary contrast to the grandeur of the Hall. They can stand alone or work alongside the Soane Hall as reception and exhibition areas.
Why Choose One Marylebone?
- Grade I listed London landmark designed by Sir John Soane
- Four versatile spaces to mix, match, or hire individually
- A blend of historic architecture and modern production capability
- Prime central location, steps from Regent’s Park
- Indoor and outdoor options year-round