5 Best Conference Centers in London (2026)

Southbank Centre is a major riverside arts and cultural complex on the Thames, home to concert halls, an art gallery, a public library and a night club under one site, and it also hosts large-scale conferences and events within its venues. It isn't a dedicated conference centre in the traditional sense, but its scale and central London location put it on the radar for organisers who want a landmark address with built-in atmosphere. Reviewers consistently praise the riverside setting and the range of spaces on offer.

Central Hall Westminster is a Grade II* listed events venue that has hosted conferences, ceremonies and gatherings in the heart of Westminster since 1912. It offers 25 flexible spaces ranging from intimate rooms for two people to large occasions for 500 guests, and can scale up to high-impact events of 2,000 or more. The building doubles as a working Methodist church, giving it a distinct heritage character alongside its conference facilities.

Queen Elizabeth II Centre is a dedicated conference, exhibition and events venue opposite Westminster Abbey, open since 1986 and built to host high-profile domestic and international conferences with a capacity of up to 2,500. Its position, a five-minute walk from the Thames and steps from Westminster's landmarks, is one of its strongest selling points, and it sits within walking distance of tens of thousands of hotel beds. Reviewers repeatedly single out the organisation and staff professionalism at large events.

Banqueting House is a historic royal building on Whitehall managed by Historic Royal Palaces, best known for its Rubens ceiling and now used for conferences and events as well as public visits. It's a smaller, more intimate venue than the other names here, built around two grand halls rather than dozens of breakout rooms. Its limited opening days for public visits reflect its dual role as both a working events space and a heritage attraction.

One Great George Street is an events and conference venue next to Westminster station, run within a Grade II* listed building and combining conference space with fine dining and wedding hire. Reviewers who've attended professional events there consistently mention well-drilled, helpful staff, and it doubles as a wedding venue for those wanting the same heritage setting for a private occasion. It works with a list of recommended external caterers for larger functions.