This place has been on the radar for a while now but never got the chance to properly take a look. The dome itself can be seen for quite a few miles across the surrounding areas. Not a great deal of information available other than it looks like some sort of water treatment site/reservoir possibly used by the MOD, given the land its situated on. It doesn't appear to be fully derelict either as you can still here the sound of running water and the grass seems to be trimmed.
The explore went as planned, few dog walkers here and there, other than that spent a little while looking around.