Meetings and Conferences

One Great Occasion

This Westminster corporate events venue and conference centre in Central London can hold both small and large conferences, corporate meetings, training events, elegant private dining functions and award dinners, as well as seminars and lectures in our tiered theatres.  As a flexible central London conference venue, we can offer catering for large occasions of 400 right down to small intimate events of six attendees.

There are 21 function rooms for hire at our award-winning conference centre Westminster. Most have natural daylight and are traditional and elegant in style. The venue has a range of breakout and catering rooms to support your main event. You will have an experienced event co-ordinator assigned to you to make sure there is one point of contact at all times.

Everyone gets access to complimentary Wi-Fi throughout the building. We have state-of-the-art audio visual facilities and a flexible in-house catering team.

We take sustainability seriously and our ‘green team’ meet regularly to monitor our Corporate and Social Responsibility practices.

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Regulatory Policy Institute

"The conference has been widely hailed as a success, and this is due in no small part to all those working at One Great George Street. It was a pleasure to work with you and your colleagues, and I would not hesitate to recommend OGGS as a superlative venue.

In addition, staff at reception and cloakroom were helpful, knowledgeable and patient, by turns; and the high standard of cleanliness was also appreciated.

The faultless support of OGGS staff, set in such beautiful surroundings, provided a fantastic backdrop to our most successful conference to date. A very memorable day! Please pass on my thanks to your colleagues, and I hope that we will hold another event with you again."

Karin Cheetham


"One Great George Street is a venue which we have used a number of times over the past couple of years and will continue to do so for many more to come. The location is ideal for the nature of our events, being in the heart of Westminster and has great transport links. We really enjoy the traditional style rooms, they are truly breath-taking and provide us with the added wow-factor for our events. Despite the venue having been around for hundreds of years, it is very up-to-date with technology and we have always had our expectations exceeded with AV requirements. Jayna has been a brilliant contact for us to have and has always gone above and beyond to accommodate our needs, it’s been a pleasure building such a strong relationship with her. Every other member of staff that we have dealt with in the run up to and on the day of our events has been very pleasant and the venue certainly maintains their standards throughout the various departments."

Ashley Andrews

Talk Up

"My most sincere thanks to you and all the team at One Great George Street for a really excellent event. Every aspect of the service provided by you all was of the highest professional standard while the food was absolutely superb. The performers were grateful to your technical team for their expertise. Thanks to the willing porters who helped transport all the equipment to and from the parking bay! or my part, I want to thank you personally for helping me throughout the long journey of putting the event together. The final result was, as many guests have told me, “a spectacular success that we’ll never forget.""

Chris Lee

British Veterinary Association

"Thank you all so much for your help in making our dinner last night such a great success. Everything went really well and you were all so helpful. Please would you pass on our special thanks to your wonderful catering team."

Helena Cotton

Environment Agency

"Just to day we had an extremely successful event and it would have not been so without your help and attention to detail that the very friendly staff at One Great George Street provided throughout our events. We really appreciate the experience we had working with you and would definitely recommend this venue for future events."

Giselle Austin

Central Government Agency

"We were extremely impressed with the friendliness and professionalism that you showed in dealing with our recent conference booking. We have received extremely positive feedback from the conference facilitator and attendees on the organisation and standards of service at One Great George Street. this has been reflected in the customer feedback comments. We look forward to working with you again"