A rare architectural offering, this custom modernist residence channels the iconic work of Gwathmey Siegel with its sculptural geometry, minimalist lines, and sweeping walls of glass. Built in 1978 and brilliantly sited to capture panoramic skyline views, the home is bathed in natural light and wrapped in terraces, creating a seamless connection to the outdoors. A multi-story great room serves as the centerpiece framed by towering windows, a sculptural staircase, and one of 3 wood-burning fireplaces. The open dining and living areas flow onto the deck for year-round entertaining, while the kitchen retains its original vintage charm with a built-in booth, expansive counter space, and track lighting. Upstairs living spaces unfold with elegance: a lofted sitting area within a sun-filled bedroom suite, and a private rooftop office with direct access to the flat roof for outdoor gatherings. The primary suite is its own retreat with fireplace, balcony, and spa-like bathroom. The finished walk-out basement extends the home's versatility with three additional bedrooms, a full bath, and a sprawling family room anchored by another wood-burning fireplace. Throughout the home, signature details pay homage to the era and elevate everyday living. Outdoors, your private resort awaits: a heated in-ground pool, wraparound terrace, multiple decks, balcony, and soaring views. Numerous recent updates complete the exceptional package. This modern masterpiece offers an unmatched opportunity.