Room 33A is a small space on the east side of 33W formed when the kiva (Room 33C) was added to Room 33W. It measures 2.9 x 0.9 m. Six strata were identified in Room 33A including a floor, roof-fall, post-occupational fill, and a trash layer. No features were identified. Given the room's unusual size and shape, it is unclear how occupants used the room.