Bathed in natural light and on a quiet street in prime Cobble Hill, this single family townhouse at 146 Baltic St. was built circa 1852 and renovated over the decades, most recently in 2017. Its graceful blend of original features and thoughtfully executed changes creates a gracious home that is both timeless and fresh, and notably warm and comfortable. Approach via a newly rebuilt bluestone sidewalk, original iron fence and handrails, and a well-preserved front door; inside are wide-plank wood floors, historically accurate replacement windows, and four original decorative mantels, one with a wood-burning fireplace. Modern additions include central AC on the upper floors, split systems on the garden level, and a security system with video intercom. There are large spaces for entertaining, including three different outdoor areas, and a choice of rooms for quieter times, among them five bedrooms, two smaller side rooms, and three full baths. Designed by award-winning architects Baxt / Ingui, the parlor floor offers expansive living and dining rooms, flooded with light from floor-to-ceiling windows front and back. The foyer has the original moldings and staircase, and a 9-foot-wide opening into the living room. Custom-built bookcases frame the room, whose centerpiece is the WBFP with its delicately carved white-marble mantel with grapes and vines. The long front windows look out to a blooming cherry tree and across to the picturesque Warren Place mews. The adjoining dining room fills the width of the house and easily accommodates large groups. Its three tall, slender French doors open onto a handsome wood deck. Wisteria drapes its side trellises, adding privacy as well as beauty. A retractable awning offers shade when wanted. A rear-facing staircase looking out to lush greenery leads from the dining room down to the garden level's custom chef's kitchen (also part of the Baxt / Ingui renovation). It is outfitted with high-end Thermador appliances including an induction stovetop, a steam convection oven, two dishwashers, two sinks, and a white Macaubas marble island and countertops. Custom cabinets offer abundant storage, as does the adjoining pantry with full-sized washer and dryer. A newly installed dumbwaiter links the kitchen, dining room, and cellar. The kitchen's folding glass door opens to a new bluestone patio, a spiral staircase from the deck above, and a pergola framing the beautifully landscaped, extra-deep, south-facing garden. There is a second bluestone sitting area, a koi pond, and mature plantings served by a timed irrigation system. The cellar has two offices, a workbench, and lots of storage space, including for art, wine, and firewood. 146 Baltic is 20 feet wide on a 105-foot lot with substantial additional FAR available for expansion. On a very low-traffic block, it is perfectly situated for easy access to the neighborhood's stores, restaurants, and parks, including Cobble Hill Park, Brooklyn Bridge Park, and five playgrounds within five blocks. This is a rare opportunity to own a piece of landmarked Cobble Hill's rich history and vibrant present.