Hut or cabin south of Fiddlers Green on AAWT

Hi everyone,
Does anyone have any information regarding a hut or cabin, located at GR 454 356, approximately 1500m south of Fiddlers Green?
I have read that it has a water tank but have not found any other reference to it. I would like to confirm the presence and state of the tank in order to provide a source of water for an overnight in the area.
The structure is visible on Google Earth (with imagery from January 2014).
Thanks in advance for any information.
Does anyone have any information regarding a hut or cabin, located at GR 454 356, approximately 1500m south of Fiddlers Green?
I have read that it has a water tank but have not found any other reference to it. I would like to confirm the presence and state of the tank in order to provide a source of water for an overnight in the area.
The structure is visible on Google Earth (with imagery from January 2014).
Thanks in advance for any information.