RIBA at 66 Portland Place

Located in the heart of Marylebone, RIBA at 66 Portland Place is one of London’s most architecturally significant event venues — a Grade II* listed Art Deco landmark that combines historic grandeur with contemporary event spaces. As the headquarters of the Royal Institute of British Architects, the venue offers a prestigious setting for conferences, receptions, private dining and high-profile corporate events in central London.

Inside, the building’s event spaces balance period architectural detail with modern functionality. Grand proportions, original finishes and abundant natural light create an elegant backdrop, while flexible layouts and integrated technology allow spaces to be tailored to a wide range of event formats. From large-scale conferences and awards ceremonies to refined receptions and executive meetings, 66 Portland Place offers a strong sense of occasion without feeling corporate or generic.

A key highlight is the venue’s recently launched 6th Floor Suite, available for exclusive hire. This self-contained top-floor space includes the Wren Room and Hawksmoor Room, alongside a private landing and wraparound terrace with views across central London. The suite is particularly well suited to VIP meetings, private dinners and discreet drinks receptions, offering privacy, natural light and outdoor breakout space within a prestigious setting.

Key Features

• Grade II* listed Art Deco landmark in the heart of Marylebone

• Home of the Royal Institute of British Architects

• Central London location near Regent’s Park and Great Portland Street

• Wide range of event spaces for conferences, dinners and receptions

• Exclusive hire options including the 6th Floor Suite

• Wraparound terraces and natural daylight in key spaces

• In-house catering, AV and experienced events team

• Strong architectural identity and sense of occasion

Event Spaces & CapacitiesFlorence Hall (Largest Space) Reception / Standing: up to 400 Seated / Dinner: up to 200 Theatre / Presentation: up to 300

6th Floor Suite (Exclusive Hire) Reception / Standing: up to 120 Seated / Dinner: up to 80

Meeting & Private Dining Rooms Jarvis Hall, Anstruther Room, Wren Room and additional spaces Suitable for meetings, private dining and breakout sessions

Why Hire RIBA at 66 Portland Place RIBA at 66 Portland Place offers a rare combination of architectural prestige, central London accessibility and operational flexibility. It is ideal for organisations seeking a venue with authority, design credibility and a refined atmosphere, supported by professional in-house event delivery.

With its distinctive Art Deco interiors, versatile event spaces and exclusive options such as the 6th Floor Suite, 66 Portland Place remains one of London’s most respected and dependable venues for corporate and high-profile events.