A couple of nights ago I attended an event at Wath Hall which was the former town hall before closure. The hall has been acquired by an cooperative with the intention of restoration. The building is split into two with the original hall which was a former private mansion and an extension which was built by Wath upon Dearne Urban District Council sometime around the 1960s.
One of the directors took us on a tour and mentioned that in the 1960s extension, a cellar was once a bunker for council officials during the cold war.
I had a look in the cellar myself and it resembles a council district emergency centre hastily put together but fell out of use sometime around the 1970s. There is a self contained ventilation system with ducting to each room which has its own controls mounted to the wall albeit decommissioned with the fuses removed. There is only one staircase down with 5 rooms leading off a spine corridor. No blast doors or sanitation features and the rooms were stripped bare with the exception of the odd telephone point and socket.
Before the council closed the building the rooms were used for storage of archives.