luxury architect houses for sale Gallatin County, United States

In the forested hills of Towering Pines, this extraordinary Big Sky retreat combines world-class architecture, refined design, and sweeping natural beauty across 20 private acres. Offering both unmatched tranquility and connection to one of the Rockies' most exclusive private clubs, it is a legacy estate designed for generations. Ownership includes the opportunity for a coveted National Membership at Spanish Peaks Mountain Club, granting access to the Tom Weiskopf–designed championship golf course, a stunning clubhouse with fine dining, private ski lift access into Big Sky Resort, and a year-round calendar of curated events. Membership also connects owners to the broader Montage Big Sky community, elevating the lifestyle to one of true rarity at the heart of a premier resort destination. Approximately half of the residence is a newly built custom addition by OSM, strategically designed to frame sweeping views of the Spanish Peaks and Lone Mountain. Though offering remarkable privacy and serenity, the estate sits just minutes from Big Sky's world-renowned skiing, championship golf, the Blue Ribbon waters of the Gallatin River, and the vibrant Town Center. Inside, soaring ceilings, expansive windows, and seamless indoor-outdoor transitions fill the home with natural light, while elevated finishes and clean lines create an atmosphere of timeless sophistication. Curated spaces with custom lighting evoke a gallery-like ambiance, perfectly suited for art and the discerning collector. Spanning more than 10,000 square feet, the residence balances gracious entertaining with the ease of everyday living. Six spacious bedrooms include a primary suite with dual walk-in closets, a private upstairs gym, and a lower-level office and den. A separate guest suite—complete with its own kitchen, dining nook, living room, and outdoor sitting deck—offers visitors both comfort and privacy. Additional features include an expanded three-car garage with a custom-designed mudroom, multiple living areas anchored by striking fireplaces, and a thoughtful blend of formal and casual gathering spaces. Outdoors, winding garden paths, intimate seating areas, and sweeping mountain vistas elevate the mountain living experience. Every detail reflects a commitment to craftsmanship, elegance, and enduring quality. More than a home, this is a sanctuary—an inspired retreat and a true legacy property, thoughtfully designed to be cherished for generations to come.