Dunno how to do links, but the first thing I'd do is buy the little flat for sale in our village, just right for adult dc who is still living at home at the moment.
After that, I'd buy land. I've got my eye on somewhere, and I don't want developers to get their hands on it. Probably cost me about £5m.
After that, I might have a look round the local area, don't want to go far though, and there's nothing in the 'big' price bracket at the moment 