Modern luxury meets mountain serenity at 39 Mountain Lane - a rare new construction opportunity nestled on 2.7 private acres in one of Beacon's most coveted locations. This custom-designed modern country retreat blends refined architecture, expansive indoor-outdoor living, and peaceful natural surroundings just minutes from downtown Beacon and the Metro-North train to NYC. Designed with intention and distinction, this 5-bedroom, 4.5-bath residence features soaring ceilings, walls of glass, and a light-filled open floor plan with panoramic mountain and seasonal Hudson River views. Built for today's lifestyle, the home includes two dedicated home offices, a spacious mudroom, and a media room offering exceptional flexibility for work, relaxation, and entertaining. The thoughtfully designed layout includes two luxurious primary suites, including a first-floor suite with a private office - ideal for guests, multigenerational living, or a secluded owner's retreat. Spa-inspired bathrooms with soaking tubs, generous walk-in closets, abundant storage, and seamless access to patios and garden spaces elevate everyday living. A separate two-car garage enhances privacy and convenience, while an optional pool offers the opportunity to create a true resort-style escape. Construction is scheduled to be completed early Summer 2026, presenting a rare chance to collaborate with a top-tier in-house designer and personalize finishes and details to your taste. All just minutes from Long Dock Park, the Hudson River waterfront, Metro-North, Dia Beacon, kayaking, hiking, galleries, acclaimed restaurants, and the vibrant charm of downtown Beacon.