The Fazl mosque (English: The Grace Mosque) also known as The London mosque, is the first purpose-built mosque in London, England. It was opened on 23 October 1926 in Southfields, Wandsworth. At a cost of £6,223, the construction of the place and the purchase of the land on which it stands, was financed by the donations of Muslims with support from the British Muslim convert Khalid Sheldrake. Between 1984 and 2019 the Fazl Mosque was the residence of the caliphs of the Ahmadiyya Muslim Community, and therefore its de facto international headquarters. The administrative headquarters now lies at the site of the Islamabad, Tilford.