National Union of Mineworkers headquarters

The building was commissioned by Arthur Scargill in the early 1980s in an effort to move the NUM from London to the friendlier territory of the "Socialist Republic of South Yorkshire". Construction began in 1986 In December 2011, plans to turn the building into a casino were approved by Sheffield City Council. It was reported that as a casino, the building would include two restaurants and a rooftop bar. In January 2013 work began to open two restaurants on the ground floor, but developers Quest Property said the casino was on hold but "still an option". In January 2014 developers said the structure had been stripped out in preparation for use as restaurants, offices and for leisure…

The building was designed by Malcolm Lister and features a prominent central section inspired by the appearance of a mine's pit head. Architecturally, it is designed to blend in with Sheffield City Hall, which it sits opposite. In his 2010 book A Guide to the New Ruins of Great Britain, Owen Hatherley cites as ironic the fact that the NUM headquarters is more sympathetic to the history of Sheffield than anything constructed by New Labour, despite the latter's professed concern for "heritage".