Welcome to this exquisite 20-foot wide Renaissance Revival townhouse, beautifully designed by architect Theodore F. Thomson in the early 1900s. Nestled within the Central Park West Historic District, this meticulously renovated home boasts modern amenities while retaining its historic charm. Spanning six levels, this residence features updated infrastructure, including new heating and cooling systems, a spacious wine cellar, and luxurious living spaces. With a thoughtful blend of high-end finishes and smart home technology, this multi-family townhouse is a perfect oasis in one of Manhattan's most coveted neighborhoods. First Floor & Garden: Upon entering the first floor, which can be accessed from the street or inside staircase, you find an expansive sun-filled, newly renovated kitchen with an oversized kitchen island; Miele appliances, Scavolini cabinets, and four ovens; including a convection microwave, steam oven, a six-burner cooktop, two dishwasher, two refrigerator, two freezer drawers, and a sub-zero wine fridge. The ceiling height in the kitchen is 11' 1 and houses beautifully appointed retractable metal and glass patio doors which lead to the south facing outdoor garden, perfect for entertaining, and outfitted with a motion detector security system and a built-in Lynx BBQ system, hooked up for both gas and electric. The kitchen is complemented by a dining alcove which also features the metal framed retractable doors that lead to the lush green-hedged landscaped garden. There is a full bathroom and half bathroom on this floor along with a laundry closet, heated bathrooms floors and towel racks, and built-in speakers connected to a SONOS sound system. Parlor Floor & Library: Enter from under the stoop or up the stairs to access the stunning parlor floor and library. The spacious south facing living room features coffered 12' ceilings, a charming gas fireplace, built-in speakers for an immersive audio experience, and a built- in mirrored Seura TV housed over the fireplace mantle. The elegant design showcases high ceilings and refined finishes, making it an ideal space for relaxation and entertainment. The library has a butler's pantry with two Liebherr wine coolers and a Juliette balcony. There is also a large bedroom on the front side, with ample closets, and features modern HVAC controls and heated floors including in the bathroom which are appointed with Lefroy Brooks hardware. Third Floor: The third floor offers two spacious bedrooms, two bathrooms, two kitchenettes, and a washer dryer. The front bedroom stands out with bay windows that bring in natural light, enhancing the beauty of the space, a gas fireplace, and a Murphy Bed system. The front kitchen features a Bloomberg refrigerator, Miele dishwasher, Sharp convection microwave, and Wolf induction stove top. The equally large back bedroom features ample built in storage, walls units, and south facing windows. The back kitchen also contains high-end appliances, including a subzero wine fridge with two drawers, Fischer Paykel two-drawer dishwasher, insta-hot, and Sharp convection microwave oven. Enjoy the convenience of heated bathroom floors and towel racks, ensuring comfort throughout. Fourth Floor: The fourth floor awaits your personal touch, with structural preparations for future renovations already in place. It currently has two rent stabilized units providing an immediate income opportunity. This level offers potential for expansion and customization, with upgraded electrical and plumbing systems for your future vision. Fifth Floor: The top floor features three beautifully appointed bedrooms and two bathrooms with new heating and air conditioning systems. The south facing living and dining room leads to the outdoor terrace offering stunning views of the surrounding neighborhood and south skyline. It also has an extensive kitchenette and features a washer dryer. This floor can function as an extension to the rest of the town house, or offered up as a free-market income producing three-bedroom apartment. Cellar: Below the first floor, stairs lead down to the fully finished wine cellar that houses up to 1,600 bottles. The kitchen has an island for hosting wine parties and a refrigerator and freezer. The cellar also has a den, that can also be used as a gym room, massive storage closets, and a half bath. Enjoy heated floors throughout, and easy access to the house's heating and hot water systems. This level is equipped with modern conveniences, including a security system and high-capacity water heaters. Features include: Renaissance Revival architecture, 6 floors, 5 renovated floors with new pipes, heating/air systems, new roof, repointed exterior brick work,The 2 stoops outside were redone. Ice/snow melt heating was installed in the exterior stair landings, multiple closets and significant storage options on every floor, central air on 4 of 6 floors, hot water underfloor heating on 4 of 6 floors, heated towel racks in bathrooms, new flooring 4 of 6 floors, new electrical and gas systems, security system, automated entry, SONOS sound system, outdoor built-in BBQ, 1600-bottle wine cellar, heated basement floors, 2 large water heaters, upgraded electrical and gas systems, updated WIFI system, outdoor irrigation system, ice melt external front staircase, restored and coated exterior, upgraded windows, two gas fireplaces, 3 Built-in Mirrored Seura TVs, remote-controlled window shades, and restored original windows and period entry. 44 West 90th Street is a multi-family Brownstone with excellent income and potential to convert to a single- family home in the future. Situated on the Upper West Side, a stone-throw away from Central Park, and conveniently located, near fantastic restaurants and shopping, bus and subway stops.