Welcome to 25 Walnut Street, a masterfully reimagined multi-flex residence in the heart of New Rochelle that offers a rare combination of high-end modern luxury and incredible architectural versatility. This property is essentially a brand-new 2025 build, meticulously reconstructed from the studs up with only the original foundation remaining. Designed to adapt to your specific needs, the layout provides three distinct opportunities: it can serve as a sprawling 6-bedroom single-family home, a primary residence with a high-income rental unit to offset your mortgage, or a high-yield investment property where both units are rented out. The home features two completely separate entrances and two spacious living areas to ensure total privacy and independence. The design-forward interiors boast open-concept layouts, beautiful oak flooring, and large bay windows that flood the home with natural light. Two designer kitchens serve the residence, each featuring custom soft-close cabinetry and brand-new 2025 stainless steel appliances. Significant structural additions include a third-floor attic expansion, now a private primary bedroom with dual closets and a dedicated en-suite bathroom. Furthermore, the lower level was dug out to create legal living space, offering a large recreation room with its own separate entrance/exit door. Every inch of the home has been updated with new plumbing, electrical, and energy-efficient ductless HVAC systems. Situated in a vibrant neighborhood, you are just a ten-minute walk from Metro North for a 33-minute express train to New York City, and minutes from boutique shopping, eclectic dining, and the scenic waterfront.