Welcome to Park Hill, a legacy property--reimagined for the way you live today. This 1923 English Manor tucked within a prestigious private association, offering the perfect escape just moments from NYC. Thoughtfully updated for today's lifestyle while preserving its timeless architectural pedigree, this is a rare opportunity to own a true Greenwich estate with the ease and sophistication sought by buyers. Set on 1.81 acres of private, park-like grounds, the property delivers the kind of space, quiet and natural beauty that feels worlds away--yet remains effortlessly connected. Grand-scale entertaining rooms, multiple living spaces and refined interiors create an ideal setting for both elegant gatherings and everyday living. Amenities include an indoor pool and private gym. Originally built in 1923 in the English Tudor Revival style and enhanced with 2025 updates, Park Hill seamlessly blends historic character with modern luxury. The indoor pool and private gym--bringing a full-wellness experience home--along with a three-car garage and circular driveway that lend both convenience and presence. With a a fully approved and engineered accessory structure/cottage (see attached plans), new gas line, new water line, new septic and more, the estate also offers future flexibility to expand or customize. Located just minutes from town, schools and Metro-North, 21 Calhoun Drive provides the rare combination of privacy, prestige, and proximity that discerning buyers demand.