55 E 65Th St

A seven-story prewar cooperative completed in 1910, this landmarked boutique building contains roughly three dozen units set along a quiet, tree-lined Upper East Side block between Madison and Park Avenues. Architecturally it reflects classic early-20th-century townhouse scale: lofty ceiling heights, proportionate windows, and masonry façades that face residential townhouses. Residences are primarily one-bedroom layouts (some marketed as convertible two-bedrooms) and retain traditional interior details such as hardwood floors, crown moldings, built-ins, chandeliers, high ceilings (10–11.5 feet reported), and working wood-burning fireplaces with mantelpieces. Kitchens are typically renovated with modern appliances (Miele noted in listings) and bathrooms often updated in stone or marble finishes. Common areas include a staffed lobby with a live-in superintendent, renovated hallways, laundry facilities and individual storage rooms and bicycle storage in the basement. The co-op is pet-friendly, allows pied-à-terre ownership in many instances, and permits up to 70% financing; there are cooperative transfer fees and a small flip tax. There is no doorman; building services emphasize low-scale, resident-managed upkeep rather than full-service staffing. Location amenities include immediate proximity to Central Park, Madison Avenue boutiques, galleries, and a broad selection of restaurants and transit options, delivering a classic Upper East Side urban lifestyle.