Managed by event catering company Searcys, the Grade II listed venue covers 11,241 sqm and includes 41 en-suite accommodation rooms.
Among some of the building’s features is a 300-seater auditorium for conferences and exhibitions, 18 meeting rooms with AV equipment, six heritage rooms for private dining, two penthouse state rooms and a rooftop terrace.
The Victorian building’s traditional features have been restored and combined with AV technology and wifi connections, as well as Dolby surround-sound speakers.
All catering is delivered by Searcys, which also operates at The Gherkin, the National Portrait Gallery and Carlton House Terrace in London.
Yvette Bradley, general manager at 30 Euston Square, said: "It is a stunning and unique venue that provides the perfect blend of character, history and heritage with modern and cutting-edge facilities.
"We are incredibly excited to be officially launching the venue, having seen its transformation throughout the redevelopment, and are certain that it will become a target for businesses from all over the UK."
All profits generated through 30 Euston Square go to the RCGP.
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