 Once the first free standing HHS school location was out grown, a new home was sought, which is now referred to as the Old Hillsborough High School, to replace it, and was built in 1911 on a design by Wilson Potter of New York.It was expanded in 1923 according to designs by M. Leo Elliott.Hillsborough High School moved into its present-day home, a gothic architectural design by Francis J. Kennard, which was completed and has been the school's home since 1928.