23 Park Avenue stands as the only remaining Stanford White mansion on Park Avenue, a distinguished Italian Renaissance Revival palazzo built in 1889 for James H. Robb, a prominent banker, cotton trader, and state senator who also served as president of the Union Club. Designed by the legendary architect Stanford White of McKim, Mead & White, this landmarked six story building features striking dark red masonry and intricate terracotta ornament that sets it apart from its limestone neighbors. The mansion's rich architectural heritage and handsome stooped entrance make it one of the most visually compelling buildings on lower Park Avenue.
Following Robb's death, the mansion served as headquarters for the Advertising Club of New York from 1923 to 1977, hosting notable members including young Bill Paley, J.C. Penney, and Bill Bernbach who conducted business in the main dining room. The building retains much of its original grandeur, including a large clock in the entrance hall and extensive original architectural details throughout. In 1977, it was converted into an intimate 15 unit co-op, with each residence featuring a unique configuration that preserves the mansion's distinctive character.
The apartments showcase remarkable ceiling heights ranging from 10 to 20 feet, with some penthouses featuring even more dramatic proportions. Many units are configured as duplexes, taking advantage of the building's generous vertical space and original architectural elements. Original plasterwork, ornate moldings, and working fireplaces are common features, while renovated units often incorporate premium appliances including Wolf ranges, Sub Zero refrigerators, and Miele appliances. Several apartments offer Empire State Building views, and the penthouse includes private roof deck access with panoramic city vistas.
The building's prime Murray Hill location places residents steps from Grand Central Terminal, the Morgan Library and Museum, and Bryant Park. This positioning offers convenient access to both the vibrant NoMad dining scene and midtown business district, while maintaining the quieter residential character of historic Murray Hill. The location provides easy connectivity to transportation hubs and proximity to Madison and Fifth Avenue shopping.
Pets are welcome in this distinguished co-op, though sublets are not permitted. The building features an elevator and on site superintendent during daytime hours. With its combination of architectural pedigree, spacious layouts, and central Manhattan location, 23 Park Avenue represents a rare opportunity to live within one of the city's few remaining Gilded Age mansions, where residents can experience the grandeur of Stanford White's design vision in a contemporary cooperative setting.
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For some co-ops, instead of price per square foot, we use an estimate of the number of rooms for each sold apartment to chart price changes over time. This is because many co-op listings do not include square footage information, and this makes it challenging to calculate accurate square-foot averages.
By displaying the price per estimated room count, we are able to provide a more reliable and consistent metric for comparing sales in the building. While we hope that this gives you a clearer sense of price trends in the building, all data should be independently verified. All data provided are only estimates and should not be used to make any purchase or sale decision.