Bond Street is so called because it runs alongside the town’s bonded warehouse, a place to store goods arriving from the river, especially luxury goods such as wine. Items would be released from the warehouse once the relevant taxes were paid. The space used by warehouse was probably part of the old castle, which in the eighteenth century was converted by adding a shallow brick vault between an old wall and the great curtain wall. This was accessed via the old Watergate.
When Castle Street was built the rear yard of the house to the West of Bond Street was initially the home to a small brewery, and the Bonded Warehouse would have been used for storing the finished beer.