I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
This is the Reception and Admin block of what once was St Andrew’s Mental Hospital just outside Norwich. The main building on the other side of the roundabout has listed status, and has been converted into luxury apartments.
Plenty of spots available to park and TOAL nearby. The site has been known to be inhabited by squatters, so beware of getting too close.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 21/08/2021. It remains the responsibility of any pilot to check for any changes before flying at the same location.