1711 Gerritsen Avenue WELCOME HOME! Nestled on the border of Madison and Marine Park - two of Brooklyn's most beloved and established neighborhoods - this beautiful semi-detached brick home is the kind of property you don't come across often - spacious, warm, and full of possibility. Set on an expansive 30' x 100' lot with a substantial 23.5' x 42' building footprint, this meticulously maintained home offers nearly 3, 000 sq. ft. of thoughtfully designed living space - ideal for large families, multi-generational households, or savvy buyers seeking built-in income potential. This home offers a duplex layout with three bedrooms, two full bathrooms, and a half bath on the upper level - featuring a bright living room, a beautiful kitchen with custom cabinetry and high-end appliances, and a formal dining room that can easily flex as a family room or additional bedroom. Downstairs, a fully separate unit with its own private entrance offers two additional bedrooms, one bathroom, a living area, and a full kitchen - perfect for extended family, an au pair, or rental income. The main floor features beautiful hardwood floors throughout, with high ceilings and generous closet space on both levels. Outside, you'll find a front porch, a back porch, side entrances, a private driveway, and a built-in garage with room for three or more cars. Perfectly situated minutes from Marine Park - Brooklyn's largest park - as well as local shopping, great dining, and convenient transportation, this is a location that truly has it all. The home is move-in ready, exceptionally well-maintained, and offers a flexible layout to suit a variety of lifestyles and needs. Combining space, comfort, convenience, and potential, this is a wonderful opportunity to own in a highly desirable Brooklyn location. Don't miss out - contact us today to schedule your private showing!