Inner London > The King's Head Theatre Current and forthcoming events and shows at Inner London's The King's Head Theatre with related venue, location, news and links. Society of London Theatre member. As part of the relaunch in 2008 the seating capacity has increased from 112 to 140. Home of London's Little Opera House in rep until 2015. Moved to temporary accommodation at John Salt Bar in 2017 pending development of new venue at Islington Square. You can also check out the iUKTDb The King's Head Theatre (Inner London) archive with 999 shows listed up to Monday, 18th September 2017.