Erected in 1912 and converted to a cooperative in 1958, this 12-floor building was designed by J. E. R. Carpenter???one of the most prolific and influential residential architects of his generation???and D. Everett Waid. Standout features include a landscaped side street entrance and spacious apartments with prewar details. This prime Carnegie Hill location is near the Metropolitan Museum of Art and other museums as well as the restaurants, boutiques and art galleries of Madison Avenue and everything the Upper East Side has to offer.