It was a ruin when I was there and a bit disappointing.
Alcock and Brown?
From what I've learnt from the chap (unless he was pulling my leg), the roof and the windows were removed to evade taxes (only the stable has a roof now). Unfortunately, it's not looking to change. There are clients (the Irish national trust among them) who want to buy and renovate the property, but the eight owners cannot agree about it.
He told me fascinating stories about guys who came all the way one from Newfoundland and another from Brazil (!) on rafts across the ocean. About the aviators I've learnt from your post