RIBA's landmark building, 66 Portland Place offers a range of event spaces in central London to suit any need. Ranging from smaller meeting rooms to our grand hall and purpose-designed auditorium, each space features Art Deco styling and natural daylight.
Situated in the prestigious and historic neighbourhood of Marylebone, 66 Portland Place is just moments away from Oxford Circus, Great Portland Street and Warren Street London Underground stations and the green open spaces of Regent's Park.
Guaranteed to impress, our largest space at 66 Portland Place can host up to 400 guests and is great for conferences, parties, weddings and more
Bathed in natural light, this versatile Art Deco space is perfect for receptions, weddings, civil ceremonies, and exhibitions. Combine with the Florence Hall to make your event really special
Our 284-seat raked auditorium and attached hospitality space is perfect for presentations, training, conferences, awards ceremonies, and weddings
A bright and modern space on the top floor of 66 Portland Place, this versatile space allows you to take in the views across London
Central London meeting rooms with personality. Discover our Art Deco Room collection at 66 Portland Place now
Make a real statement with exclusive full-building hire of 66 Portland Polace
As of 1 June 2025, 66 Portland Place is closed to the public as part of the next phase of our House of Architecture programme. The building will be temporarily shut for approximately three years as it undergoes refurbishment to make it more accessible and better equipped for the future generations of architects and members.
Contact us by telephone on +44 (0)20 7307 3888 or make an enquiry using our quick contact form.
