The Boleyn Ground, often referred to as Upton Park, is an association football stadium located in Upton Park, east London. Since 1904, it has been the home of Premier League side West Ham United F.C., with their predecessors Thames Ironworks playing their home games at Hermit Road. The stadium was also used shortly in the early 1990s by Charlton Athletic during its years of financial difficulty. The current seating capacity of the ground is 35,016.