Decades of preparation to obtain sufficient land adjacent to the old Zawiya led finally to the building of the new mosque.

[3] Soon after the Lebanon Civil War, following a donation by the late Prime Minister Rafic Hariri, the foundation for the Mohammad Al-Amin Mosque was laid in November 2002.

Hariri was assassinated on February 14, 2005, and his body is buried next to the mosque, within the Martyrs' Square of Beirut.

[4] During the construction of the mosque, archaeologists uncovered a section of the east–west main Roman street (Decumanus Maximus), with paving and columns.

[6] Designed by Azmi Fakhoury in a style similar to the architecture of Ottoman Turk, the mosque can accommodate up to 6,400 worshippers.