828 Fifth Avenue is one of New York's most beautiful mansions on Fifth Avenue and one of Fifth Avenue's premier architectural gems. Built in 1896, a coal magnate, Edward J. Berwind, commissioned the little-known architect Nathan Clark Mellen to design the mansion and received in return an Edwardian Georgian townhouse-palace. The facade (bowed on Fifth Avenue) consists of a two story rusticated limestone base topped with red brick. The unusual arched entryway has polished granite columns and is covered with an awning. Although the entrance is on 64th Street, Berwind managed to retain the more prestigious 828 Fifth Avenue address. In 1978 a modern glass penthouse was added to the roof and the mansion was converted into two full-floor apartments (on the first and second floors), two smaller duplexes, and four conventional sized apartments in the former servant's quarters. These nine residences rank among the grandest private spaces in New York City. For example, 3,500 square feet, not including the kitchen, bathrooms and auxiliary rooms, 18-foot high ceilings, Louis XV in style, putti above a monumental fireplace, Renaissance-style trim, wood paneling, and a 4,000 bottle wine cellar. 828 is a small, private, white-glove, full service building.