Commissioned in 1910 by H. Leroy Emmet, Glen Malcain—“the ever-delightful glen”—was masterfully designed by renowned architect H. Van Buren Magonigle as an English Country manor of exceptional distinction. Set on nearly 5.5 acres in sought-after Tuxedo Park, this Hudson Valley estate offers over 800 feet of private frontage on Tuxedo Lake and captures sweeping northern views across the full length of the lake to the Ramapo Mountains beyond, all within a historic 2,300-acre gated enclave. A dramatic arrival unfolds through a monumental Renaissance door of iron and hand-forged bolts, opening to a sequence of extraordinary interiors. A columned reception hall with Corinthian capitals and sculpted friezes sets the tone, leading to a richly paneled bog oak dining room set within a pentagonal bay of tall windows overlooking the water. The grand living room, distinguished by rare Thomas Chippendale Chinoiserie doors, is complemented by an elegant study and a marble-floored conservatory filled with natural light. Throughout the home, the original windows and hardware remain intact, beautifully scaled to invite light while framing the surrounding landscape. Private quarters offer remarkable scale and flexibility, with five to six generously proportioned bedrooms. The layout adapts effortlessly to a range of modern living needs, including dedicated home offices, fitness and wellness rooms, media or recreation areas, and private guest suites ideal for extended stays. The home’s thoughtful separation of spaces allows for both intimate daily living and larger-scale hosting with ease, while also accommodating live-in staff quarters if needed. A magnificent two-story elliptical staircase, crowned with intricately carved woodwork, leads to the upper levels, where a striking circular twelve-sided sun room room adjoining the primary suite continues the home’s architectural narrative. Nearly every room is thoughtfully oriented to maximize breathtaking lake and mountain vistas. An expansive terrace spans the full length of the rear facade, creating a seamless connection between indoor and outdoor living and offering an exceptional setting for dining, entertaining, or simply taking in the lake views. A pool provides a welcome retreat during the summer months, adding to the property’s outdoor lifestyle. Enhancing the waterfront experience, a charming stone cottage sits directly at the water’s edge, offering a rare opportunity for restoration as a guest retreat, studio, or lakeside escape. The property's expansive frontage allows for the addition of a private a dock, allowing for immediate enjoyment for boating, fishing, and life on Tuxedo Lake from your own shoreline. Despite its sense of seclusion, the property offers exceptional accessibility—just 46 miles from Midtown Manhattan, with both train and bus service nearby. Fine dining at Valley Rock Inn & Mountain Club, everyday conveniences, and extensive hiking throughout Harriman State Park are all within easy reach. A rare offering where historic pedigree, architectural significance, and natural beauty converge, Glen Malcain represents a truly timeless Hudson Valley lakefront estate.