The inside of the dome is decorated with sacred geometry in the Islamic tradition and has small stained glass windows around its base, containing turquoise coloured 16-pointed stars.

1937 This project (Nizamia Mosque, later changed to present name) was funded by the Nizam of Hyderabad, India, and the foundation stone of the mosque was laid on Friday, 4 June 1937, by HH Prince Azam Jah - eldest son of Mir Osman Ali Khan - the last ruler of the largest princely state of India, Hyderabad State.

[6][7][8] 1939 Lord Lloyd of Dolobran, (1879–1941), then Chairman of the British Council, works with a Mosque Committee, comprising various prominent Muslims and Ambassadors in London.

The gift, moreover of a site for a mosque would serve as a tribute to the loyalty of the Moslems of the [British] Empire and would have a good effect on Arab countries of the Middle East".

[10] The intent was to enable Muslims in Britain to build a mosque and an Islamic Cultural Centre, so they could conduct affairs pertaining to their faith.

His design of The Main Mosque Building Complex can be divided into two elements: The main building consisting of the two prayer halls and three-story wings including an entrance hall, library, reading room, administration offices and the minaret; £2 Million of funding was donated for the construction of the ICC by His Majesty King Faisal Bin Abdul Aziz Al-Saud of Saudi Arabia.

[citation needed] A further donation was provided by Sheikh Zayed bin Sultan Al Nahyan ruler of Abu Dhabi and President of the United Arab Emirates.