Welcome to 311 Warren Street, an award-winning, architecturally distinguished mixed-use gem located on a premier corner lot at Warren and Smith Streets in the heart of Cobble Hill, Brooklyn. This 25-foot-wide, five-story+ building-honored with the Brooklyn Chamber of Commerce's Best Mixed-Use Building Award-seamlessly blends refined residential living with high-visibility commercial presence.

Built in 2010 and benefiting from favorable Tax Class 1 designation, the property features a private, light-filled five-bedroom residential triplex with entrances on Warren Street. Designed with windows on all four sides, the home spans three expansive levels and includes a private elevator, two terraces, and a finished roof deck offering sweeping views of Brooklyn and Manhattan. A flexible third-floor suite, complete with full kitchen, bathroom, washer/dryer, and home office, is perfectly suited for guest accommodations, an au pair, or potential rental income. Additional features include a Thyssen Krupp elevator, indoor garage with car lift capability, three full bathrooms, and a chef's kitchen with premium Thermador appliances.

Built to passive house standards, this home incorporates radiant floor heating, mini-split AC/heat units, installed solar thermal water heating, soy-based insulation, a whole house water filtration system, and an air filtration system with passive fresh air ventilation ducts. It also features custom noise-dampening high efficiency thermal windows and doors.

The two-story commercial unit -accessible via a gated Smith Street entrance-offers a versatile layout suitable for one or two tenants, complete with two half bathrooms and a 25-year tax abatement (2025 taxes just $32,000). Located directly across from the F/G subway entrance and MTA bus stop, this property enjoys unmatched foot traffic and visibility-ideal for premium retail or boutique office use.

With 835 square feet of additional FAR approved by the NYC Department of Buildings, 311 Warren represents a rare opportunity to own a sustainable, income-producing asset with future development potential in one of Brooklyn's most sought-after neighborhoods.