This ashlar block is what remains of the southern wall of room 2, to the west of the threshold (SU 5371). It covers the threshold block on one edge and must have been placed in its location after 5371, likely in the same construction phase. It is equal to the other ashlar walls of room 2: 5372, 5308, and 5369. It is covered by the cocciopesto floor, 5374, indicating that the floor was constructed after the block of 5370 was placed.