Thank you for posting auster - you have filled in a large gap in my local knowledge. Once again TM supplies the answers.
Hi Paul and yes the buildings on Gadsby lane are those of the original factory although with modern cladding. The planes were flown from the farmers field behind. In 2013 the Auster club arranged with the farmer/owner to hold a fly-in there and I was lucky enough to be there and fly from the field. I'm pretty sure there will be another event before too long. There's a pic here of the plaque on the wall beside the gate and some of the planes of the 2013 fly-in. I'll post something if there's another planned.