At 85 acres ( 34 ha ) in size it occupied in medieval times one tenth of the total area of the city .
The cathedral close is notable for being located within the city 's defensive walls and its considerable size , unusual for an urban priory .
At 85 acres ( 34 ha ) in size cathedral close occupied in medieval times one tenth of the total area of the city .
The cathedral close is notable for being located within the city 's defensive walls and its considerable size , unusual for an urban priory .