Stairs SU 5405 connect the road to complex south of ashlar wall SU 5007. It abuts the wall SU 5406. They are cut so they descend east to west into the complex. The bottom stair n. 3 may actually be the support for the floor of the back part of the lower terrace. The lower stair n. 3 is also cut to accommodate the drain SU 5401. The floor level was most likely higher on the stairs, also eliminating the third step. These `stairs`, cut into the bedrock, may actually be the foundation for the steps themselves, which have been robbed but - on analogy with the stair built into the wall 5309 in room 9 and the staircase connected the middle terrace to the upper terrace- would have been constructed of tufo slabs.