Introducing 138 Manhattan Avenue - A rare chance to own a historic townhouse on the Upper West Side, located a block away from Central Park and designed by renowned architect C.P.H. Gilbert, whose work includes some of the most notable buildings of the Gilded Age including the Cartier building on Fifth Avenue. This 17 foot wide, five-story property combines classic 19th-century architecture with beautifully updated modern interiors and amenities, and is comprised of 4 bedrooms (flex 5 bedrooms), 3.5 bathrooms, a penthouse studio, roof deck, and fully enclosed private garden. The parlor level opens with wrought-iron doors into a functional mudroom with built-in closets and storage. Beyond the foyer, the living room offers double-height ceilings, warm southern exposures, a charming wood-burning fireplace, and a library nook with garden views. On the garden level, a dining room with 19-foot ceilings and a full-length glass wall connects seamlessly to a chef's kitchen with a dumbwaiter, pantry, and powder room. Sliding glass doors lead to a private bamboo-enclosed backyard. The second and third floors offer light-filled, well-proportioned bedrooms and limestone bathrooms, including a primary suite with a wood-burning fireplace, skylight, and ensuite spa bathroom. The top floor includes a penthouse studio, wet bar, roof deck, and skylight. Additional features include zoned central air, radiant floor heating, and a security doorbell system. Situated in the Manhattan Avenue Historic District, this property provides convenient access to Central Park, plenty of private and public school options, local cafes, shopping and easy transit options, including express B/C trains. 138 Manhattan Avenue offers a unique combination of location, historical significance, and modern upgrades. Opportunities to own properties like this are exceptionally rare.