 It is now the Glen Cove Mansion Hotel and Conference Center.The John Teele Pratt residence, at 11 East 61st St. in New York City was purchased by the Pratts, who hired Charles Pierrepont Henry Gilbert to remodel the 1872 home in April 1907.In 1914, Pratt purchased the neighboring homes at 7 and 9 East 61st Street and hired Platt to tear them down and design a new residence.