520 E 76Th St

The John Jay House is a mid-20th-century cooperative apartment building on Manhattan’s Upper East Side, completed in 1964 and rising roughly 13 stories with about 100–110 residences. Unit mixes include studios, alcove studios, one- and two-bedroom layouts organized around traditional elevator access. The exterior sits at the end of a quiet cul-de-sac facing John Jay Park and the East River promenade; many apartments enjoy river or treetop views and private balconies or modest outdoor spaces. Interiors commonly feature renovated kitchens with granite counters and stainless appliances, hardwood floors, crown moldings and built-in storage; several homes offer separate formal dining areas, entrance foyers and walk-in closets. Building common areas include a renovated lobby and hallways, a planted roof deck with river and city vistas, central laundry, bike room and rentable storage. Services and operations are full-service co-op style: a part-time doorman (broadly 8:00 a.m.–midnight coverage), a live-in superintendent, Fios connectivity and on-site building staff. The property is pet-friendly and permits co-purchasing, gifting, guarantors, pied-a-terre ownership and, after residency requirements, subletting. Location advantages emphasize proximity to John Jay Park (pool, courts, promenade), nearby dining and retail, quick access to the Q and 6 trains and convenient links to the FDR Drive.