Rare Upper West Side Limestone Townhouse – Live with Income or Exceptional Investment Opportunity Located on one of the Upper West Side's most desirable tree-lined blocks between West End Avenue and Riverside Drive, this architecturally significant 18-foot-wide Renaissance Revival limestone townhouse offers approximately 5,000 square feet across five stories. Designed by renowned architect George Pelham, this beautifully maintained property is currently configured as five residential units, presenting an exceptional opportunity for investors, owner-occupants, or those seeking a future single-family conversion. The building features: Owner's garden/parlor duplex with a private 31' × 19' landscaped garden One free-market one-bedroom apartment Two free-market studio apartments One rent-stabilized studio apartment with a tenant paying near-market rent 4 of the 5 units will be delivered vacant at closing, including the owner's duplex, one one-bedroom apartment, and two studio apartments, offering tremendous flexibility for immediate occupancy, rental income, or future reconfiguration. Rich in original architectural character, the home showcases soaring ceilings, intricate plaster moldings, decorative fireplaces, oversized bay windows, hardwood floors, and abundant natural light throughout. The full-length cellar is exceptionally clean and well maintained, featuring updated mechanical systems including a new boiler, hot water heaters, thermostats, sprinkler system, and generous storage space. Ideally located just steps from Riverside Park, the Hudson River Greenway, the M79 Crosstown Bus, and the 1, 2 & 3 subway lines, this remarkable townhouse offers the perfect blend of historic elegance, investment potential, and everyday convenience. Whether you're looking to live with rental income, acquire a trophy investment property, or restore this magnificent limestone townhouse into a grand single-family residence, 311 West 78th Street presents a truly rare opportunity in one of Manhattan's most coveted neighborhoods. An outstanding opportunity for 1031 Exchange buyers, investors, or end-users seeking long-term appreciation in a premier Upper West Side location. Shown by appointment only.