The Old Woking Heavy Anti Aircraft Battery ( HAA ) served the Brooklands Gun Defended Area. The only surviving structure is the battery command post which is in good condition. The gun pits in the adjacent field have all been filled in and there is no trace of any other buildings. Official records for 1942 state that the battery was equipped with 4 X 3.7" mobile anti aircraft guns operated by 344 battery of 109 HAA regiment. This regiment later landed in France on D Day as part of 30 Corps and fought to Germany.
