Ile de France, formerly Haywire House and Birch Grove, is an extraordinary estate set on 12.14 very private acres in Yorktown Heights. Approached by a sweeping drive, the property offers exceptional privacy, character, and a rare sense of grandeur. The main residence features a gracious foyer, formal dining room, book-lined living room/library with marble fireplace and library ladder, adjoining game room, multiple ensuite bedrooms, a three-floor elevator, and a second parlor opening to an expansive terrace with fountain and direct access to the indoor/outdoor conservatory pool. A Massive eat-in Kitchen with two sink stations, a breakfast room, a corridor of storage plus a half bath & large Laundry. There is also a suite of rooms - two bedrooms, full bath and dining/living/playroom. Out the Kitchen door, there is a two-car garage with a full unfinished second floor with windows. A porte-cochere connecting the garage to the Kitchen helps with our bundles - whether Children or packages. Two guest outbuildings complete the estate. Full House Generator. Additional adjacent 10.34 acres available MLS #H6302034. Photos are virtually staged. Rooms, Kitchen, Baths & square footage does not include the two cottages. The property was once the country estate of Pamela Digby Churchill Hayward Harriman, daughter of a Baron, whose husbands included Winston Churchill's son Randolph Churchill, Leland Hayward, the celebrated talent agent and producer behind South Pacific, My Fair Lady, and The Sound of Music, and W. Averell Harriman, diplomat, statesman, and Governor of New York. Named "Ile de France" by the current owners after the French Line ship where they first met, the estate has welcomed notable guests including the Kennedys, Frank Sinatra, Henry Fonda, and James Stewart, adding a remarkable chapter of history to an exceptional private residence.