Patroon Agent's House and Office, also known as the Casparus Pruyn House and Office or Whish-Hull House and H. V. Rector office, is a historic home and office located on the Hudson River at Rensselaer in Rensselaer County, New York. It was built and first occupied Nov. 29, 1839 and consists of a  2 1⁄2-story rectangular brick residence with an attached 1-story rectangular brick office in the Greek Revival style. It was built by the Van Rensselaer family as a home and office for Casparus F. Pruyn, rent collection agent for William Van Rensselaer who had inherited the "East Manor" in 1839, consisting of Rensselaer County from his father Stephen. Today, the Patroon Agent would be considered the Chief Operating Officer of a corporation; also, several other Patroon Agent Houses have been locate