MAISONETTE SIX ROOM PREWAR OPPORTUNITY This bright and quiet maisonette is currently configured as a professional office and is now being offered to create a six room residence with two to three bedrooms and baths. Enjoy North, South and East exposures and quintessential prewar details including approximately nine foot ceilings. Central air conditioning and a washer/dryer are permitted with board approval.Situated steps from Park Avenue, on a prime tree-lined block in the heart of Carnegie Hill, 114 East 90th is a charming full service cooperative built in 1925, with doorman, fitness room, playroom, garden patio, laundry room, resident superintendent and bicycle storage. Pied a terre, guarantors and co-purchasing permitted on a case by case basis. Pets allowed.Carnegie Hill is a serene and beautiful Upper East Side neighborhood marked by townhouses, the Central Park reservoir, and many shops, restaurants and cultural institutions including the Guggenheim and the 92nd Street Y. Existing and suggested floor plans provided. Co-Exclusive with Kleier Residential Inc.