Offered in triple mint condition, the exceptional 1846 Greek Revival townhouse is found mid-block on one of the most coveted tree-lined streets of the Brooklyn Heights Historic District. The 23 foot wide home is built on a rare 135 lot, with 2 full width terraces and an enviably deep landscaped garden. An elevator accesses all floors of the 6-story, 7,040 square foot home. Designed by Ingui Architecture, the superb scale, meticulous renovation, and impeccable craftsmanship converge to create an inviting, quietly elegant modern home in true turn-key condition. The Parlor Floor entry opens to an attractive Gallery, anchored by a gracious skylit stairway. A well-proportioned Living Room boasts floor to ceiling windows, a fireplace with a handsome Nero Marquina mantelpiece and stunning oak floors in a herringbone pattern. The adjacent Wet Bar leads to a charming bookshelf-lined Dining Room. The expansive state-of-the-art Chef's Kitchen has been outfitted with custom cabinetry, a Lacanche gas range with an electric oven, a paneled Gaggenau refrigerator/freezer, double integrated dishwashers, a pantry and coffee bar with 30” Sub-Zero drawers and countertops and a large center island of honed Calacatta Maccha Vecchia marble. A wall of Zola glass doors seamlessly connect to a full width dining terrace overlooking the lush Garden. A Powder Room completes this floor. Upstairs, the luxurious Primary Bedroom Suite opens to a large terrace on the garden. A spa-like Primary Bathroom is finished in Calacatta Vagli slabs with a large steam shower, a cast iron soaking tub, an ebonized oak double vanity and heated floors. A private water closet features smart Toto toilet with SensoWash. The adjacent Dressing Room leads to a Sitting Room/Bedroom with a walk-in closet and a windowed en-suite Bathroom finished in Arabescato Violet stone slabs and Cle Zellige tiles. The Fourth floor includes 2 large, light-filled Bedrooms, each with a windowed en-suite Bathroom finished in Arabescato Violet stone slabs Cle Zellige tiles and a walk-in closet. A Laundry Room includes a high capacity LG washer dryer, storage and a Sub-Zero beverage refrigerator. Natural light spills through the house from dual skylights atop the central stairway on the Fifth Floor. A dramatic Studio/Great Room, easily converted to a Seventh Bedroom, overlooks the large, old growth London Plane and Norway Maple from a triple-glazed 18 foot skylight with a motorized exterior shade. A charming, bookshelf-lined Sixth Bedroom/Library overlooks the Sidney Place treetops. These rooms share a skylit Seventh full Bathroom, finished in Arabescato Violet stone slabs Cle Zellige tiles. Downstairs, a skylit stairway emphasizes the connection to the expansive Family/Media Room with Wet Bar. A wall of Zola glass doors open to the Patio and to a lush 75 foot garden with old growth trees and a sophisticated irrigation system. A Guest/Staff Bedroom with an en-suite Bathroom, a Powder Room, and a Laundry Room with storage completes the Garden Level, accessed through a gated entry. The expanded Cellar includes a Gym designed and installed by the Tracy Anderson Method Studio and lined with custom mirror storage cabinets. A full Bathroom with a cold water bucket shower and a room equipped for infrared or traditional sauna installation. A custom steel and glass climate controlled wine storage room completes this floor. Fully centrally air conditioned, all structural elements and mechanical systems have been updated to the highest standards. The cellar has been excavated and includes a new slab, a vapor barrier and insulation. A Passive Energy Home, super insulated construction and triple pane windows reduce heat gain/loss and exterior noises. The ERV fresh air filtration system provides fresh air with a moderate humidity level, while extracting toxins and allergens. 37 Sidney Place represents a brilliant marriage of late 19th century scale with every advantage of 21st century townhouse living.