No 4 Lynn Road

No 4 Lynn Road is a 17th-century building that may include parts of an earlier structure. It underwent significant alterations in the 18th century and later. The building served as a jail from the late 17th century when the Bishop's jail was moved from Ely Porta in 1836 after the Bishop lost his jurisdiction. In 1768, Bishop Manson made partial reconstructions to the building. A prison report from 1804 described the jail as insecure, leading to felons being heavily chained. One iron collar with spikes remains, the last used on James Thomson in 1798. The building has a square plan and is constructed from a mix of stone rubble and red and yellow brick. It has two storeys with two windows on each front; the windows are a combination of double-hung sashes with glazing bars and 20th-century casements. Some window openings still have the iron bars from its prison days. The first-floor rooms feature original heavy boarded, barred, and double-bolted prison doors with inspection windows. The roof is tiled, double-pitched, and hipped. A small exercise yard for prisoners remains on the east side.