I wonder how much cause for concern for Netjets as they consider Northolt again for setting up a maintenance facility in the UK? It's the perfect location and never made sense when it closed other than the military wanting the hangar for other things.
Can't imagine Netjets would go to Oxford where businesses have to pay huge amounts for parking permits (and often have visitors fined for overstaying the permitted two hours, grrrr) and Biggin Hill may be close to London but the road links make it useless. Marshalls have a great facility at BHX that must be hugely cheaper than the London area, possibly making repositioning a worthwhile option.