30 Euston Square is a central London events venue where an organiser can book a 300-seat auditorium, an exhibition hall, two fifth-floor State Rooms with a rooftop terrace and six heritage meeting rooms. Groups range from eight people around a boardroom table to around 300 delegates for a conference. The building stands on Euston Square in London NW1 and has 41 bedrooms for guests who stay.
Seminars and company events
Conference days are built around the Auditorium and the Exhibition Hall. The auditorium is equipped with advanced audiovisual technology and is used for presentations, award ceremonies, screenings and hybrid events. Its seating runs from 120 to 300 depending on the layout. The Exhibition Hall covers 360 square metres under two atriums that rise 24 meters. It holds up to 300 delegates and has a five-meter 4K video wall, a dedicated entrance and separate loading access. Delegates can register in the hall, attend the programme in the auditorium and return for breaks and networking. Smaller meetings, workshops and board sessions fit in the heritage rooms.
Weddings and receptions
The venue lists weddings among its occasions. The two State Rooms on the fifth floor, the Euston Room and the Stephenson Room, are offered for receptions and dinners, and the Princes Gate room suits smaller wedding meals. The rooftop terrace is heated and partly covered. It can only be booked together with the State Rooms.
Rooms and capacities
The Euston Room measures 268 square metres and takes up to 160 seated guests. The Stephenson Room takes up to 90 and opens onto the terrace. Together the State Rooms hold 230 standing, 150 theatre style or 160 seated, and the terrace adds room for about 100 more. On the first floor, six Heritage Rooms range from Beresford Pite (8 seated around the table) to Princes Gate (70 for a reception, 50 theatre style, 45 banquet). Ireland and Scotland seat 16, Wales 14 and England 10. The 1st Floor Bridge holds 40 for a reception and works as breakout space.
Accommodation
41 boutique bedrooms are available on site, so a seminar group can sleep where it works.
Catering
Searcys is the catering partner. It prepares seasonal menus for private dinners and handles meeting-day catering, from working lunches to formal dinners.
History and setting
The building dates from 1906 and is listed Grade II*. The first-floor Heritage Rooms keep their oak panelling and period fireplaces. The Exhibition Hall and State Rooms add modern lighting, daylight and built-in audiovisual equipment, so the venue serves both formal and contemporary formats.
Getting there
The venue is easy to reach from King's Cross and Euston stations, and Euston Square station is next to the building.





