The architectural study of four multi-purpose rooms in the Quartier du Théâtre at Delos This article comprises the architectural study of four rooms of commercial purpose in the Quartier du Théâtre at Delos. These rooms are characteristic examples of a large category of commercial establishments, and their good state of conservation permits examining part of their fittings. It is in particular a question of the mezzanine and of the shop-front, which often includes a large bay and a second door accessing (...) a staircase leading to the upper storey. These elements are found in other rooms of this type at Delos, constituting one of the criteria for their identification, and enable a better understanding of their function. (shrink)