108 E 91St St

108 East 91st Street is a boutique pre‑war cooperative on a quiet Carnegie Hill block just off Park Avenue. Completed in the 1920s, the mid-rise building rises nine stories and contains a mix of one- and multi‑bedroom residences arranged with classic pre‑war proportions, beamed ceilings, built‑in millwork, decorative fireplaces and hardwood floors. Many apartments have multiple exposures and large windows that admit abundant natural light above tree‑lined streets. Common areas reflect neighborhood scale: an inviting lobby, part‑time doorman, live‑in superintendent, passenger and service elevators, and a newly renovated laundry room. Shared amenities include a communal garden/patio, bike room, cellar storage (with deeded storage in some units), and basement laundry; limited private outdoor spaces such as Juliet balconies and terraces appear on select residences. The co‑op has flexible policies that commonly permit small pets, pied‑a‑terres, subletting options and foreign buyers subject to board approval, and allows typical financing levels. Maintenance structures and flip tax terms vary by offering. Located two blocks from Central Park, Museum Mile and major shopping and transit options, the building provides a residential, museum‑adjacent Upper East Side lifestyle that blends historic character with contemporary renovated interiors.