Event Venue in Central London

20 Cavendish Square is an ideal venue for meetings and conferences in Westminster with a range of spaces to suit. Every room at 20 Cavendish Square combines distinctive character with modern facilities creating a setting that is both timeless and practical. Original Georgian architecture, refined interiors, and historic character sit alongside contemporary technology and flexible event capabilities, ensuring each space is designed to meet the needs of today’s meetings, conferences, private dining experiences, and celebrations. Our in-house AV technicians are on hand throughout, and additional breakout rooms can be arranged to suit your event.

At the heart of 20 Cavendish Square, Cowdray Hall offers an impressive setting shaped by stained glass windows, original oak doors, soaring ceilings, and plenty of natural daylight. The Hall is the largest event space and has capacity for up to 180 delegates in theatre layout.  The adjoining Council Room can be booked alongside as an additional networking space. Both spaces offer flexible layouts, built-in projection, surround sound, and high-speed internet as standard. 

 For midsized events, Rosalind Paget, Agnes Hunt, and Annie Altschul provide bright, well-equipped rooms with space for seminars, workshops, and away days. Rooms like Sarah Swift and Florence Nightingale are set up for focused boardroom meetings, with seating for smaller groups around a single table. 

There’s a unique atmosphere to hosting an evening in a Georgian townhouse that a modern venue cannot match. Wood panelled walls, high ceilings, and original period details create an atmosphere that does much of the heavy lifting for you.  

 The Cowdray Hall is our flagship space for large drinks receptions and dining, with capacity for up to 120 in cabaret and 200 standing. The Council Room works well as the registration area, drinks space, or a smaller reception space, whether you’re welcoming guests for a product launch, an awards dinner, or a networking reception.   

 Both rooms are fully equipped with AV facilities for presentations, digital displays, and live streaming, making them ideal for product launches, award dinners, networking receptions, and speeches. Our hospitality partner, Green & Fortune, provides everything from canapé receptions to three-course seated dinners.  

When you’re hosting an event that requires participation, the layout matters. At 20 Cavendish Square, we offer flexible seating configurations designed to keep groups connected and encourage interaction. These include classroom, cabaret, and U-shape.   

For larger seminars and training days, the Cowdray Hall, Peggy Nuttall, and the Annie Altschul rooms provide bright spaces for larger workshops, with additional breakout rooms available for smaller group sessions. Midsized rooms like the Edith Cavell, Rosalind Paget, and Florence Nightingale are well-suited to workshops and focused team days.  

 For a more adaptable space, the Agnes Hunt and Annie Altschul rooms feature a partition wall, suitable for workshops with breakout sessions or for multiple group activities. 

 All rooms are fitted with high-quality AV systems, and our in-house technical teams are on hand to support you on the day. Whether you need a straightforward projector setup or a more complex hybrid event with remote delegates, we can advise.