Complex sentence: No 2 South Bailey has distinctive circular'blind' windows which were revealed during a re-rendering in the 1980s, and enabled Martin Roberts, then Durham City's Conservation Officer, to date the building very precisely to the late 17th century.
Split into simpler sentences: No 2 South Bailey has distinctive circular "blind" windows which were revealed during a re-rendering in the 1980s. This enabled Martin Roberts, then Durham City's conservation officer, to date the building precisely to the late 17th century.