An opportunity like no other! This exceptional one bedroom in the heart of Carroll Gardens has truly outdone itself, with ultra-luxurious finishes and upgrades throughout.  It offers everything the discerning buyer could ask for: excellent light and southern exposure, oversized windows, wide plank hardwood flooring, separate radiator heat and central AC, custom closet build outs, and the most cutting edge in surround sound - Sonance A1.5 Invisible Speakers in both the living area and bedroom.  Additional highlights include a generously sized bathroom with deep soaking tub, Duravit and Toto fixtures, a very large kitchen with bountiful Caesarstone counters and professional grade appliances including a Jenn-Air Culinary Grade range and LG stainless ultra-quiet dishwasher. The unit also comes with a washer and dryer.  There is additional shared storage in the basement as well as bike storage.321 Union Street is a recently built condominium which creatively combined a historic brownstone and a new modern addition. Very low common charges and a 421-A tax abatement make this a fabulous value in an unbeatable location just one block to the subway.