The Hillsborough County Registry of Deeds is located at 19 Temple Street in Nashua, one of the county seats of Hillsborough County, New Hampshire. The two-story Classical Revival brick building was built in 1901 as a courthouse to a design by Boston architect Daniel H. Woodbury. It was expanded in 1946. It is trimmed with granite and cast stone, and has rusticated brickwork at its corners, and a cornice decorated with dentil and egg-and-dart moulding. The building exterior is largely unmodified except for the removal (sometime after 1946) of a small dome.The building was listed on the National Register of Historic Places in 1985. The current courthouse a modern building at 30 Spring Street.