I used to think I would buy a house with a sea view, but I don't know now that I would want to move away, as it's ore difficult to make new friends when you're older.
So I'd probably go away somewhere luxurious for a while, and hand over to a project manager, who can arrange for the whole house and garden to be made over, then come back to my own house, but nicer. The PM could organise a housekeeper, too - not a live-in one, but someone who could take over the chores and boring bits of home ownership and life admin.