Ok, let's get serious.
100% off the grid. Solar/wind/generators for power, well for water, I would want it to be 100% self contained, and completely free of any need from the outside world. A garden/plantation for food, some chickens/cows for eggs/milk/meat, and preferably a lake for fish and swimming.
Of course, I'd own the entire property around the lake, so no one could mess with it.
Control center for the "compound" (ooohh.. scary) would be underground, in a bomb shelter/bunker, with enough supplies to last indefinitely. Full security fencing around the outside with cameras and breach detection to prevent unauthorized entry.
I would of course have myself a completely silent underground audio room, built to be completely acoustically dead for critical audio listening sessions. Also, a natural amphitheatre on the property for performances.
I would promote it as a secure and private get away for people to come and relax/study/meditate. I would love to host guest speakers from all walks of life, to come and speak about all sorts of topics... from religion, to arts, to music, to politics. Everyone is welcome to attend, the only prerequisite is an open mind, and the willingness to hear other people out, even if you dont agree with what they are saying. I wont invite people to debate or argue, or to preach and convert. Only to share and teach, and let people decide for themselves.
Of course, full wifi coverage for the entire property. A solar powered mesh project would give access everywhere, with only the upfront cost of installation.. power from the sun would run the equipment year round.
Oh, and of course there would be a huge zen garden.