Excavation on various parts of the Eastern Residential Area (ERA) of Shahr-I Sokhta with the aim of reaching the most ancient layers of period I began in 2017 (Seyyed Sajjadi and Moradi, 2019: 711). Based on the information obtained from previous excavations (Tosi, 1983), the new ones (1999-2018) as well as different test trenches in ERA between 2018 and 2020 (Moradi, 2022: forthcoming), it seems that the Eastern Residential Area was the main center of the city during the formation of period I of occupation of the site. Rooms 88 and 88a in the western part of Eastern Residential Area were excavated during last seasons. Also Rooms 27 and 28 in the center of the residential area were selected for new excavations, although parts of these rooms were investigated during the last season, from the beginning of December 2020 in a 5 X 4.5 meters square.