Gurdwara Sri Guru Singh Sabha Southall (SGSS) is a Sikh Gurdwara situated in the London suburb of Southall on Havelock Road and Park Avenue. It is the largest Sikh temple in London. Building work at the Havelock Road site commenced in March 2000 and the Gurdwara opened on Sunday 30 March 2003, in order to accommodate for Southall's growing Sikh community. The Gurdwara cost £17.5 million to build.