International audienceArchaeological excavations carried out under the direction of G. Le Coz between October and November 1994 during the construction of an underground carpark in Rue Marollet, Rueil-Malmaison (Hauts-de-Seine, Hot 1 of the ZAC Noblet IV) revealed structures dating from the Neolithic to modern times. This article concerns the unexpected discovery —particularly remarkable in view of the highly developed urban tissue of this region — of a building in the Danubian tradition, flanked by two lateral pits and some secondary pits. Although the excavation yielded very little lithic material orfaunal remains, there was some decorated pottery relating to the late phase of the Villeneuve-Saint-Germain culture, which complements the sm...