- 7.85 by 3.55 m
- 2.68 m high
- Orientated north south
- Doorway in west wall, closed with masonry blocking gave access to the Annexe
- Partition wall at northern end made of limestone chips and plaster and doorway leading to the Burial Chamber
- 2.68 m high
- Orientated north south
- Doorway in west wall, closed with masonry blocking gave access to the Annexe
- Partition wall at northern end made of limestone chips and plaster and doorway leading to the Burial Chamber