Wouldn't want somewhere too big. No point having a place that you never end up going into rooms. Bedroom each, spare room all with en suites. Couple of lounges, nice hallway, nice garden and an indoor pool, games room and gym. I'd settle for that Oh, and it'd be in Brighton and near the sea... perfecto
Also... I wouldn't tell any of my family of the windfall. I'd wait until Christmas and arrange a massive family bash. I'd give each a small box with a envelope and keys in each; the envelope would have a address on it with instructions to take the keys. There would be limos waiting outside for each family. The limo would take them to their new home with a brand new car(s) in the garage. On the dining room table would be a two more envelopes, one would contain holiday tickets, the other a bank card in their name along with a bank statement. Merry Christmas...