1859 W 4th Street Welcome to a rare opportunity in the heart of Brooklyn, a fully detached brick Colonial set on an expansive 40 x 100 lot, offering the perfect blend of space, versatility, and income potential. This beautifully configured home features a multi-level layout designed for both comfortable living and smart investing. The upper level boasts a fully renovated 4-bedroom duplex with modern, turnkey finishes, highlighted by a private balcony, ideal for relaxation and added lifestyle appeal, located in the heart of Gravesend, Brooklyn. This spacious residence offers a versatile layout, updated interiors, and excellent income potential, with exceptional space and modern finishes throughout. The main level offers a sun-filled open-concept layout with 3 spacious bedrooms and 2 full bathrooms, complemented by granite countertops, hardwood floors, and clean, contemporary finishes throughout. A spacious living room, formal dining area, and an updated kitchen with granite countertops in pristine condition provide a seamless flow for everyday living and entertaining. The second-floor apartment has been tastefully renovated and includes additional living space with well-proportioned bedrooms and access to a balcony, offering flexibility for extended living arrangements. The second floor is currently occupied, generating excellent rental income. The fully finished basement includes a 1-bedroom unit with its own laundry, perfect for extended family, guest quarters, or generating additional rental income. Outdoor space is equally impressive, featuring a beautifully finished backyard perfect for relaxing or entertaining, along with the convenience of a one-car attached garage and additional parking for two vehicles, a true rarity in Brooklyn. Whether you're an end-user seeking space or an investor looking for strong upside, this property delivers on every level. A rare opportunity to own a spacious and well-maintained home in one of Brooklyn's most desirable residential communities. Conveniently located near shopping, dining, transportation, and all neighborhood amenities.