art historian Emily Keyes Folpe, 80, author of “it happened on washington square,” Is is selling her Greenwich Village duplex Which comes with its own rooftop “cottage” — for $4.25 million.
The three-bedroom, two-bath cooperative at Landmark 2 Fifth Avenue overlooks Washington Square Park and Stanford White’s iconic Washington Square arch. It boasts a sunken roof deck alongside that cottage-like structure, which has 10-foot-6 ceilings, French doors and transom windows.
The cottage is currently used as an office, but could be converted into a second bedroom, den or art studio.
The apartment consists of a main bedroom and a living room with views of the park. The living room also opens onto a terrace.
There is also a separate dining room and lots of cupboard and storage space.







It is located on the north side of the park on top of a 20-story midcentury building designed by five-story red brick Emery Roth. It has more than 350 units.
At the request of developer Robert Moses, that portion was designed to blend in with the red brick townhouses that form part of the square.
Building amenities include a library, a gym, a private driveway, a library, a resident lounge, a children’s playroom, and a garage.
Kiss Folpe, who serves on the board of the Washington Square Park Conservancy, purchased the unit in 1993. He published his book about Washington Square in 2002.
“The huge roof terrace and ‘hut’ are so unexpected. Being up there and seeing the arch and treetops is magical,” said Compass broker Bill Herbst, who shares the listing with Ralph Gilmartin, also of Compass.