…That Derek Jeter flew in by helicopter to see estates for sale, in the $5 million to $25 million range, at Greystone on Hudson — a complex of 21 homes on 100 acres along a historic Westchester corridor.

The area is a no-fly zone, but, our spies said, Jeter managed to have his chopper land directly on the property.

Listing brokers Fredrik Eklund and John Gomes declined comment.