The Custom House, on the north bank of the Thames in the City of London, is a building which was formerly used for the collection of customs duties. A custom house has been present in the area since the 14th century, and a building on its current site has been rebuilt on a number of occasions. Today the Custom House is used by His Majesty's Revenue and Customs. The address is 20 Lower Thames Street, EC3. Custom House is neighboured on the waterfront by Sugar Quay to the east and Old Billingsgate Market to the west.