A Modern Brooklyn Mansion- with PARKING. This impressive TWO-FAMILY townhome is approximately 4,000 sq.ft of relaxed elegance across 4 stories, plus a full basement and 1500 sf of private outdoor space including a panoramic roof deck and a tremendous gardened backyard. For the best in luxury and convenience, an indoor-garaged parking space is deed with the sale. The home is defined by a chic aesthetic and expansive layout flooded with natural light. Beyond the handsome faade, enter the parlor level into the 47 deep grand living space, graced with custom closets, a gas marble fireplace, rich oak flooring and floor to ceiling windows with tree tops views. The flow is effortless into the open dining area, large enough to easily accommodate a fourteen-place table, and brightly lit through a full wall of windows with a perfect view of the landscaped backyard. The open chef's kitchen is as stylish as it is functional, featuring bright cesarstone countertops and large center island, double-stacked Miele ovens, custom cabinetry, a Subzero refrigerator, Miele stove top and concealed dishwasher. Here you can step through the glass door to the top terrace of large landscaped backyard, complete with a separate patio area for grilling and entertaining, alongside the natural grass with outdoor play in mind.Follow the open staircase to the master suite level that begins with a sunny study/home office with custom built-ins and bright beautiful Juliet balcony. Pass through the sliding privacy door unto a secluded paradise. The king size en-suite windowed master bath is the ultimate in indulgence, featuring a deep soaking tub, separate walk in rain shower, Grohe fixtures, large custom floating vanity with dual sinks and oversized recessed medicine cabinets. A separate dressing room with a large closet divides the space leading you into the tremendous master bedroom. The feel is secluded and spacious all at once with a sweeping layout and back yard view seen through nearly a full wall of oversized windows, each with custom sun-filter window treatments and black out shades. One flight up you will find three more bedrooms and two beautifully tiled full baths. This sky lit floor begins with an open playroom/ media space, perfect for friends and movie nights. Between the bedrooms is a laundry room with double capacity, smart technology vented W/D. Between levels you will notice how entirely quiet the home remains, due to sound reducing windows and solid concrete floor construction.The crowning glory of this superb home is the private roof deck with stunning views in every direction, including the downtown Manhattan skyline. At the garden level, an immaculate two-bedroom, one and one half bath apartment is ready for a tenant or for visiting friends and family. Specific construction also allow for a simple single home conversion with the addition of an internal staircase. Below, the enormous cellar runs the full length of the building offering endless possibilities as an art studio, wine cellar, private gym or more storage than you may ever need. Additional highlights include zoned HVAC and humidifier system, video intercoms on every floor, video security system, concealed fire sprinklers, and dual watering systems in the front and backyards. Parking is in the indoor garage just three doors away. Perfectly located at the convergence of Carroll Gardens and Cobble Hill, surrounded by the best schools, dining and convenient shopping on Court and Smith Streets. 289 Union Street is a supremely modern townhome offering the space, privacy and luxury that real estate dreams are made of today.