Members of the Ocean City Planning Board recently granted support to plans for a new residential and commercial building at 709 East Ninth Street.The proposal means the demolition of the longstanding Coral Sands Motel and is the latest in a string of proposals for mixed-use buildings, with two other applications approved at the same meeting.Coral Sands will seem familiar to anyone who has gone to the beach or Boardwalk near Ninth Street in decades, set across Atlantic Avenue from a city parking lot and long home of a popular lunch and breakfast spot.