Norfolk County Hall was built in Norwich in 1966, the lower basement Rooms B38 to B47 housed the County Emergency Headquarters. The Emergency Headquarters consisted of several rooms along one corridor with a blast door at each end.
There was zero information or references online about this Emergency headquarters but based on a hunch I contacted the County Council to enquire about their Cold war Emergency headquarters and its status.
I learned about this protected basement area however I was informed that in 2019 the lower basement was stripped and refurbished with little trace of the HQ remaining, I have since pieced together as much information as possible from the archives and I was also lucky enough to visit what remains.

From at least the 1980’s the basement would have been laid out as above, the various operations rooms were along the left hand side of the corridor with the Communications and briefing rooms on the right with a store and Kitchen. Administration support would have been before the blast door outside of the protected area.
Protective shutters could be fitted over the external windows in the basement rooms that didn’t form part of the protected areas. These rooms could be used as overflow to the main “bunker” or as specified in the civil defense plans.
Much of the equipment in the HQ remained until it was refurbished however its all gone now, including a small BBC radio broadcast desk and RAYNET (Radio Amateurs Emergency Network) station there were also a pair of key switches for controlling the fire alarm sirens. Incidentally, according to a 1994 addendum to the manual, in the event of a “Bomb Alert” the fire alarm bells would sound 2 second blasts for approximately 5 minutes. When deemed safe 2 minutes of short blasts would indicate the “All Clear” condition.
Below are some Archive photos of the External blast protection brackets, broadcast equipment and alarm controls in the rooms from 2015 (No longer present):


I visited in 2025 and although it is now just a corridor you can still see glimpses of its former life.
As you enter what was the Emergency Headquarters you are greeted with the remains of a door frame where the first blast door would have been hung, beyond which is a standard white washed blockwork corridor with several rooms off it. These have all been stripped and renovated (including the kitchen) for use as storage rooms they appear to be the original doors with vents still in place.
At the far end of the corridor to the right is a plant room with air handling unit, filters and a backup generator (All unused).
Finally there is one remaining blast door which leads to the emergency exit, photoluminescent tape is still visible on the vinyl flooring which would have marked the escape route.
The basement rooms are used for storage by the County Council and are not accessible, these photos are from an organised visit in March 2025.









