This is a RARE OPPORTUNITY to combine the last sponsor apartment at 170 East End--2AB which is a 4 bedroom, 4.5 bathroom unit (3,058 square feet) with 2C which is a large 1 bedroom, 1.5 bathroom (1,023 square feet). It's an easy combination that makes a gracious 5 Bedroom, 5 bathroom unit with 2 powder rooms. The expansive space would total 4,081 square feet and is one of the largest Upper East Side condominiums on the market for this price: $6,245,000 or $1,530/square foot.   The proposed entertaining space would be grand and lofty with a  living room and dining room spanning over 40 feet. The living room, dining, and 3 bedrooms would face tree-lined 87th Street and the 2 other bedrooms would face a landscaped courtyard with a fountain. There are 9' ceilings. This is a top- rated condominium designed by the famed architect Peter Marino. It has doormen, concierge, garage, and 12,000 square feet of amenities including a health club, squash court, pilates room, children's play room, game room,  screening room, billiards room, and a golf cage with simulator that captures the finest courses in the world . 170 East End is the epitome of luxury living. Apartment 2AB is being offered by the Sponsor/Developer thru its Exclusive Agent: Barbara Russo of The Corcoran Group: , [email protected]. Apartment 2C is being offered by an individual owner and Exclusively represented by Donna Olshan of Olshan Realty: x110, , [email protected].