Covering a surface area of 370,000 m², Djamaâ el Djazaïr is the third largest mosque in history, behind those of Masjid al-Haram in Mecca and Masjid al-Nabawi in Medina. It is made up of about 12 main buildings.
The prayer room, extending over a surface area of 22,000 m², is made up of 618 white octagonal columns. The 32 largest pillars are 34 m long and have a diameter of 1.62 m.
The mosque has a dome 50 m in diameter which rises to a height of 70 m. It has several ablutions rooms of an area of 4,200 m², accommodating fountains and approximately 100 taps.
The 267-m minaret, anchored to an apron 50 m deep, is divided into several functional sectors accessed by two panoramic elevators.
The mosque also has a 1,500-seat conference room. Spanning approximately 8,000 m², this cultural centre includes an exhibition hall, a library, and media library, a video library, a film library, lecture theatres, screening spaces, an IT hub and a cafeteria.
The buildings are designed with an earthquake-resistant structure using shock absorbers and base isolators.
Egis is tasked with carrying out additional designs and supervision and with monitoring construction works: