The architectural plans for the new Grand Mosque of Marseilles have been chosen this week. The mosque's prayer hall is 3,500 square meters and could accommodate 2,500 worshipers. The mosque, built on the site of the municipality's slaughterhouse, is expected to be completed in four years.
Source: La Provence (French), h/t Yeux jamais baisses
See also: Marseilles: Building of Great Mosque