As a proud supporter of other RPG Conventions, it seems that the Garrison Hotel in Sheffield is the centre that many RPG Conventions in the UK use.
Furnace – a hardcore & friendly RPG convention http://http://furnace.org.uk/
JenCon – a Pathfinder gathering http://paizocon.co.uk/index.…/10-newsflash/143-jencon-phwoar
Revelation – A Powered by the Apocalypse Gaming Convention http://revelationgames.org.uk/
Seven Hills – http://7hills.org.uk/
Longcon – weekend long tabletop RPGs http://www.thedodd.com/longcon-home
ShaCon – the UK’s dedicated Savage Worlds convention http://www.shacon.org.uk
Other important conventions in the UK.
UK Games Expo – The largest gaming convention in the UK – https://www.ukgamesexpo.co.uk/
Dragonmeet – Wintertime gaming convention in London – http://www.dragonmeet.co.uk/