No.11 Cavendish Square, Marlborough Theatre

About Venue

No.11 Cavendish Square occupies an elegant Grade II-listed Georgian townhouse, built during the reign of George III, with four floors of event space. Surrounded by the hubbub of theatres, shops, and restaurants, the AIM credited Gold venue is centrally located within the heart of the West End, just a few minutes walking distance to Oxford Circus. The event space is ideal for full-scale conferences, meetings, and workshops in a beautiful setting with a diverse range of room sizes bathed in natural light from the large windows.
The venue has been upgraded over the years to cater for larger events and hosts advanced audio-visual facilities including hybrid technology. Overlooking the square’s stunning outdoor spaces are 20 flexible event spaces suitable for conferences, intimate meetings, private dining, receptions, product launches, summer/Christmas parties and award ceremonies. Each elegantly designed room has distinct modern features and uses depending on the needs of the client.


A mid-sized modern, airy lecture theatre situated on the second floor with great natural light and adjoining foyer perfect for catering, networking or finishing the day with a drink’s reception. The theatre can hold up to 80 theatre or 50 cabaret and comes with a lectern, computer, microphones, comfort monitor and the ability to host hybrid
conferences and meetings. The foyer area has a dedicated cloakroom, registration area with 2 55" screens ideal for digital branding. The space is connected to the main reception by two lifts and is fully accessible.