The data that the map is based on isn’t our data - it is obtained dynamically from official sources. So any possible discrepancy isn’t within our control to be edited.
Obviously the government have reasons for that area to be marked as it is.
Thank you for moving the thread and commenting. I understand.
I wonder if its a size thing for them to have marked it, pill boxes are pretty small, a few square meters, so they don’t get shown or aren’t on maps or are below a preset size or area, but this one thats I guess 4x4 meters, is slightly larger and therefore on their system above a threshold.
This, the Hayling Island Heavy Anti-Aircraft Gun Site, is not marked on Dronescene for any reason (apart from my recommendation) although it is a site where soldiers lost their lives.
It now appears to be under the care of the local council. I wondered whether the military had an residual interest in your pillbox.
As part of the stop line it may have been associated with a nearby operational base for the Home Guard Auxilliaries - the secret volunteers who would go to ground as the country was overrun and emerge to carry out acts of sabotage and terrorism on the occupying forces.