Paid a visit Sept 2020 - front door of admin block was broken into, gained access. Building has gotten very run down and parts quite dangerous, in some of the larger offices the floor boards have given way due to dry / wet rot. used to old farm houses so made a point of sticking to solid concrete floors. Top two blocks have been converted to apartments, everything else boarded up, windows, doors, fire escapes. Went back two weeks later and front door had been boarded up and additional security measures added to stop intrusion. Very spooky down in the basement of the admin block, dank and damp and easy to get disorientated, old lab still had hundred of vials used for collecting spit samples from the old TB days.
Reluctant to visit there after dark - too much bad history, basically a place where people went to die - who would buy an apartment in an old converted mortuary

Security I guess was lax like a lot of places during the lockdown.