A Rare Commercial Opportunity at the Crossroads of the Hamptons' Most Prestigious Corridor. Positioned prominently along Montauk Highway in the heart of Wainscott, 81 Montauk Highway offers a rare opportunity to lease highly visible commercial space in one of the Hamptons' most desirable and affluent corridors. Known as the Black Mountain Capital Building, the property delivers a clean, modern aesthetic and a polished, professional presence with strong branding potential. Its location on the main artery connecting Southampton, Bridgehampton, East Hampton, and Montauk ensures exceptional exposure to both local and international clientele, year-round and in season. Surrounded by luxury residences, high-end retail, restaurants, and lifestyle destinations, the setting is ideally suited to a refined, boutique commercial concept. Suited Uses: Luxury retail, private office, gallery, design studio, wellness, financial services, real estate, hospitality-related use, and other boutique commercial concepts. SURROUNDING TENANTS: Levain Bakery, Goldberg's Famous Bagels, Aboff's Paints, The Seafood Shop, La Capannina, HomeGoods, Wainscott Hardware