The Cinque Ports Prison, which is located against the southern half of the western outer curtain wall at Dover Castle was likely originally constructed in the 1770’s and consists of a two storey range of domestic style brick buildings and incorporates Fulbert of Dover’s Tower. Earlier plans of the site indicate that the present building was constructed on the site of an earlier structure, known as the Debtors Prison. There have been numerous changes made to the current structure, most notably in 1796 when it was extended on the southern side to provide additional cells and an exercise yard (which has now been demolished). The prison use continued until the 1850s, after which the building provided accommodation for married soldiers and offices for the Royal Engineers. (location accurate to the nearest 1m based on available information)