Very close to the NDB was The Barwell Trading Estate where I spent many happy years employed in the family business. I also flew into the nearby farm strip in a Rallye Club and the (brave or insane) in a single Commanche. The brief for landing was 'just don't overfly the several mental homes for fear of disturbance!'. I was also told that the wartime PLUTO pipeline ran very close to both the farm and Trading Estate and I've attached an interesting reference to that. RAF Chessington (grass strip) was also very close but I was defeated in my efforts to fly in there!