Perched high above the Hudson River, 1 St. Mary's Convent-also known as St. Joseph's House-is a distinguished 5-bedroom, 5.5-bath luxury manor offering nearly 6,000 square feet of living space on 4.7 private acres. Originally designed by renowned architect Henry Martin Congdon for the first Episcopalian Order in the United States, this remarkable home is rich with history as part of Fort Hill, a strategic lookout once used by George Washington and his troops during the Revolutionary War. Lovingly restored after its 1985 purchase, the residence underwent a multi-year transformation that blends modern comfort with historic detail. Original stonework and chapel woodwork remain intact, while upgrades include modern baths, a chef's eat-in kitchen, and a dramatic third-floor primary suite complete with spa-like bath, loft, and a private balcony showcasing sweeping Hudson River views. The landscaped grounds are equally impressive, featuring rolling lawns, walking paths, and a heated in-ground pool with panoramic vistas. Additional highlights include a gated entrance, three-car garage with utilities in place for potential expansion, and the rare option for subdivision for both residential and commercial zoning across the nearly five-acre estate. Perfectly located next to the Abbey Inn & Spa and just one hour from New York City, this home offers an ideal balance of privacy and convenience. Residents can enjoy nearby hiking trails, riverfront parks, and the vibrant arts, dining, and cultural scene of Peekskill's downtown. A true "legacy" property, 1 St. Mary's Convent combines unmatched setting, architectural character, and historic significance in one of Westchester's most scenic locations.