Like a private house in the heart of the Upper East Side, with a Park Avenue address,lots of light, and perfect location: Currently a sprawling medical space, this unit could effortlessly be converted into a stunning 1800 sq ft maisonette. There are two bathrooms, space for two- three large bedrooms, a huge living -dining room, and a space for a chefs kitchen. Pre war detail abounds. Dramatic 10'ceilings, tremendous storage space with two walk-in closets. Separate private street entrance on E.89th in a full service coop, This is one of few Park Avenue maisonettes in a wonderful location with a very reasonable maintenace of only $4,500 a month. Call today for more information and for showings. Do not miss it.