The event will take place at Grade II-listed venue 8 Northumberland Avenue, which is based in the Trafalgar Square Conservation Area. It is the first time the event will be held in the West End district of London.
More than 700 corporate event buyers and agents from around the capital and the South East will attend the show on 4-5 May 2016.
Dominique Gill, chief executive of Story Events, said: "Our visitors are very familiar with our idea of changing the venue for each of the shows, in order to keep things fresh and introduce them to a different concept each time.
"We are delighted that our third edition will take place at 8 Northumberland Avenue, as the venue has a rich history and a spacious interior suitable for a range of events."
Charlotte Stephenson, head of venue sales at 8 Northumberland Avenue, added: "We have been impressed by the high quality of visitors at previous editions of the show and are excited at the prospect of showcasing our venue as a Christmas events space, to such a large amount of qualified buyers."
London Christmas Party Show’s sister production - the London Summer Event Show - is taking place on 19-20 January 2016 at Merchant Taylors’ Hall.
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