8 Northumberland Avenue is a Grade II listed event venue just off Trafalgar Square in central London. It hosts conferences for up to 500 guests, receptions for up to 600 and weddings for up to 400, in two connected halls of similar size: the Ballroom and the Old Billiard Room. Hire is sold as a full service, with catering, production and event management handled by the venue and its partners.
Seminars and company events
Conferences are the first use the venue lists. The Ballroom holds 500 delegates in theatre layout and the Old Billiard Room holds 350. The two halls sit on connected levels, so a plenary session can run in one while registration, exhibition stands or lunch use the other, and guests move between them without leaving the building. Smaller rooms handle breakouts. The Annex seats 105 theatre style, the Salon and Victoria take 70 each, and the Library, the Small Boardroom and the Parlour suit groups of 8 to 15. The room hire package includes furniture, AV, staffing, security and access to the additional meeting rooms. The site also lists awards dinners, large dinners, exhibitions, product launches, fashion shows and filming.
Weddings and receptions
The wedding page states a capacity of up to 400 guests for a seated dinner and dance, calculated with tables of 12. Standing receptions can reach 600 in the Ballroom and 400 in the Old Billiard Room. Catering comes from AlchemyLive, the in-house partner, and the venue also offers a dry hire option for couples who prefer to bring their own suppliers. A dedicated event manager runs the day from the first visit to the close.
Rooms and capacities
The Ballroom measures 31.4 by 12.1 meters with a ceiling of 10.3 meters, about 380 square meters. It takes 250 guests at cabaret tables, 450 at a banquet, 400 for dinner and dance and 60 or more at a boardroom setup. The Old Billiard Room measures 30.4 by 11.4 meters with a 5 meter ceiling, about 346 square meters, and takes 168 at cabaret tables, 240 at a banquet and 200 for dinner and dance. The Annex covers 147 square meters and takes 140 at a banquet or 200 standing. The Salon and Victoria each cover 61.4 square meters and take 50 at a banquet. The venue notes that banquet figures do not allow for a stage, and numbers fall once one is installed.
Catering
AlchemyLive designs the menus, from canapé receptions to plated dinners for several hundred guests, and adapts them to the event. Production is handled with Opal Fusion, the venue's integrated production partner, so the organiser deals with one team for food, sound, lighting and screens. An intelligent lighting system is built into the historic rooms.
History and setting
The building dates from the 1800s and keeps its Victorian architecture: chandeliers, ornate ceilings and marble pillars. The venue says English Heritage has described its Ballroom as the grandest Victorian ballroom still in existence. Modern technology is added discreetly so the original rooms stay in view.
Getting there
The venue stands in the middle of London next to Trafalgar Square, within a short walk of major transport links. Guests arrive by bus, Tube or taxi. Access is step-free. There is no on-site parking, but a Q-Park car park is close by and the venue provides a discount code for guests.
