NEW TO MARKET! Spacious and bright corner one bedroom home in a prime East Side location ia now available.     The comfortable floor plan starts with a separate entry foyer that leads into the generously-proportioned living room with space for dining. Five windows and dual exposures north and west overlooking backyard greenery keep the room light and cheerful. Off the living room is the windowed kitchen, which features a new stainless steel refrigerator and dishwasher, plus a bonus pantry area.     The bedroom and bath are accessed via a short hallway that creates separation and privacy from the rest of the apartment. Facing west, the oversized bedroom easily holds a king bed and has two large closets. The sparkling white bath with some original details has been nicely upgraded with modern fixtures and a reglazed tub.     Parquet wood floors in excellent condition, new doors throughout, thru-wall air-conditioning, and ample storage (4 closets total) complete this move-in ready home.     357 East 57th Street is a well-established full-service Sutton Place coop with a live-in superintendent and 24-hour doorman. The building has a newly redecorated marble lobby, modern hotel-style hallways, a furnished roof deck, laundry facilities, and direct access to an in-house parking garage (separate rent). With easy access to 9 subway lines, 5 bus routes, fine dining, world-class shopping, Whole Foods market, and Sutton Place Park, this superb location could not be better. Pet friendly too! Subleasing is permitted with board approval.