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 -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 located in and around Albany over the 200+ years of the patroonship. The properties face the Hudson River and are visible across the river from Interstate-787 on Albany's west bank. Located in what was originally settled as Bath, then later Bath-on-Hudson (incorporated into the City of Rensselaer in 1903), the property is situated at the riverfront southern boundary of Beverwyck, William Paterson van Rensselaer's estate situated facing the river on the ridge northeast of the Bath ferry landing. The house features an operating water-collection system for the many mineral springs that percolate in the area that was originally used for indoor plumbing; this system includes brick and cast-iron cisterns, channels with brick walls and ash-plank linings and an outflow now connected to the city storm-sewer system channeling the constant flow of 52 F water. In February 2013, a City contractor installing new sewer lines south on Forbes Avenue discovered a substantial underground water spring flow mid-street, between # 5 and 7 Forbes Avenue. After excavating 18 ft deep, a dewatering system of crushed stone and perforated drainage pipes was installed between Tracy and Central Avenues to divert this flow south to the city storm sewer system. This diversion—thought to be from an underground diagonal streamflow across the hillside between Forbes and Broadway—relieved virtually ALL groundwater inflow in all basements along Forbes Avenue, including drying up completely the springs and drainage system in the cellar of this subject structure. Years later, the cellar remains dry for probably the first time in 175 years. The center-hall interior is formal with two large rooms deep on either side of the hall that