Set on a picturesque, tree-lined Upper West Side street, Residence 1F/2F at 109 West 70th is a beautifully renovated duplex that pairs dramatic architectural character with classic prewar warmth. Soaring ceilings, oversized south-facing windows, exposed brick walls, and beautifully engineered floating staircases give the home a distinctive sense of scale and personality. Natural light pours into the main living space, creating an airy yet inviting setting for both everyday living and entertaining. At the heart of the home is a renovated open-concept chef’s kitchen with marble countertops, custom cabinetry, Wolf gas range, Sub-Zero wine fridge and built-in Liebherr refrigerator. The kitchen flows seamlessly into the living and dining areas, including a charming built-in dining nook that adds both function and character. The duplex layout creates a natural separation between living and private spaces while maintaining a cohesive flow throughout. Each level is served by its own bathroom, offering added comfort and flexibility. Located within The Brownstones, a boutique cooperative just off Columbus Avenue and a block from Central Park, residents enjoy easy access to Lincoln Center, the American Museum of Natural History, acclaimed restaurants, neighborhood cafés, shopping, and multiple subway lines. A rare Upper West Side duplex where prewar character, architectural drama, and a considered modern renovation come together in one distinctive home.