The perfect home in an amazing building!! Experience "house" like living at the well-loved, full service 173-175 Riverside cooperative. This spacious and wonderful 4-5 bedroom duplex is over 2800 square feet, has beautiful Riverside Park views from most rooms and feels like a house including having a private entrance on West 89th Street! Enter off a semi private landing on the 3rd floor. There is a gracious gallery with a large coat closet. The large eat in kitchen has Riverside Park views, a rarity in prewar apartments! The large living room and dining room also have Riverside Park views. The inviting den off the living space has a bright South exposure and adjacent bathroom, so could be enclosed to make a 5th bedroom. The fourth bedroom and full bathroom, also on this floor, have direct Park views as well. Down a beautiful staircase, on the second floor, there are three more bedrooms, including a very sumptuous primary suite. The primary suite has a very large walk-in closet/ dressing room, plus another walk-in closet and an extra-large bathroom with huge shower and double vanity. Both the bedroom and the bathroom have beautiful Park views. Another bedroom has an en suite bathroom and also great views. A third bedroom has a South view. The bathroom off the second bedroom can be reconfigured to be a hall bathroom so that both secondary bedrooms could use that bathroom. Finally, from the second floor one is able to walk down the stairs and directly out to the street on 89th St. offering ultimate privacy and a great way to walk a pet! This special home has all bright exposures and lots of prewar details. Central air conditioning can be installed. 173-175 Riverside is one of the most sought after buildings on Riverside Drive. A wonderfully run pet-friendly co-op with great service, there is a state of the art windowed gym, a game room with ping-pong and foosball and a very large playroom. There are storage bins for rent and a large bike room. It is perfectly situated on a lovely stretch of Riverside Park close to playgrounds and the best sledding hill on the Upper West Side! There is also easy access to some of the best transportation, restaurants, boutiques and gourmet shops the City offers. Note, there is a 2% flip tax payable by the buyer. Please call for a private appointment.