Chiltern wing, Sutton Hospital is coming down imminently. Access is no longer so readily accessible...lots of security cams and police presence. They are now building a prefab secondary school.
Well, that depends on your deifnition of asylum but it was a psychiatric hospital with an acute psychiatric ward, a geriatric ward and a rehabd ward on the chiltern wing. It's not yet totally destroyed, but the process is well started now. The older buildings of the hospitals are still untouched but bare inside.