The Ackerman-Dewsnap Home, which is more popularly known as the Bishop House, was built circa 1835 by the Ackerman family at 176 East Saddle River Road. The first addition to the home was made by James Dewsnap when he owned the home around 1870. The home was renovated and enhanced again following World War II about the time the Bishop family acquired the property.    It is listed on the National Register of Historic Places.

The house and property were bought by the borough of Saddle River from the Bishop family in 1980 with the intention of expanding adjacent municipal property and using the building for resident needs.   In 1981-1982 the house was pressed into service to accommodate municipal offices after a fire damaged the municipal building.