Location. The Helmsley Carlton House is located on Madison Avenue at East 61st Street, one block from shopping on Fifth Avenue. Central Park is one block from the hotel. The Empire State Building is two miles away. Hotel Features. Originally built as an apartment building in 1953, the 17 floor Helmsley Carlton House retains a residential feel with traditional services like white gloved elevator attendants, a round the clock doorman and 24 hour security. The hotel offers an on site business center and hand delivered message service. This New York City hotel includes a 24 hour fitness center with free weights, cardiovascular equipment, extra towels and floor to ceiling mirrors. Guestrooms. The guestrooms at the Helmsley Carlton House are elegantly appointed with traditional dÎ cor featuring upholstered headboards with matching window treatments and dark wood furnishings. Wireless Internet access and fax machines are available. In room safes are provided. Oversized upholstered chairs offer extra seating. The hotel provides nightly turndown service. Room service is available. Expert Tip. The Helmsley Carlton House is across the street from Barneys New York. This Barneys flagship location with red awnings opened in 1923 and sells clothing and jewelry.