@GBZ....First consider how many of those affluent flyers would want to flog their prestige mansion and move
Then, how many would risk buying a place that has very limited appeal
I make the sweeping assumption that Ringway's "spotter's Corner" isn't full of Rolls- Roycas, Ferraris and the like.
Then , as previously mentioned, the potential Rates-income of the whole site.
Find enough Aviators prepared to pay ,maybe £30,000 a year rates, for the comvenience of the facility, you may get the local council onside.
It's "back of a fag-packet maths" doesn't work in UK...too many people,too few sites that are not more financially viable as Airpark than housing or industry.
As I said, the way forward is to get a consortium to buy an existing airfield and the surrounding NIMBY 's properties.
Now THAT would be a winner for UK GA.
dream on!