The building was designed by architect James Edwin Ruthven Carpenter Jr., often known as "J.E.R. Carpenter".[2] Carpenter has many designs on the avenue, (including 620 Park Avenue across Park Avenue,) and together with Rosario Candela is considered among its primary influencers. 625 Park Avenue was developed in 1929 by builder Louis Kauffman, who would later occupy an apartment in the building. The building is 13 stories tall and houses a total of 32 units.
Triplex
The three-floor penthouse has been home to large collections and decoration schemes. Helena Rubinstein decorated the unit with elevated absurdism. Cosmetics rival, Charles Revson, of Revlon, bought the unit upon Rubinstein's death in 1965. He redecorated it in notably spectacular fashion with the help of firm, McMillen. In 1980 he sold to Princess Ashraf of Iran, twin sister of the recently deposed Shah of Iran. In 1995 Henry Kravis bought the unit and has lived there since.
