Location: Nantucket, Mass.
Price: $2,999,000
The Skinny: On Nantucket’s sparsely populated southern shore—just down the beach from a bunker built for JFK during the Cold War—this 20-acre parcel seems even larger, thanks to the surrounding conservation land. Divided by a private road, the property enjoys 600-feet of oceanfront, but the existing house is set back from the beach, leaving a lot for possible development to the south. Conservationists would probably prefer that the buyer stick to the modest four-bedroom, but at these prices—the property is listed for nearly $3M—few would be surprised if a giant McMansion popped up on the oceanfront lot. In fact, it just happened next door. The sellers made such gargantuan oceanfront building possible by relocating the existing house from its waterfront perch in 2006.

Rustic Cottage on 20 Secluded Nantucket Acres Wants $3M – House of the Day – Curbed National.