Question: when was the tower of london first built
Answer: 4 ha ) Height 27 metres ( 89 ft ) Built White Tower : 1078 Inner Ward : 1190s Re-built : 1285 Wharf expansion : 1377 -- 1399 Visitors 2,843,031 ( in 2017 ) Owner Queen Elizabeth II in right of the Crown UNESCO World Heritage Site Type Cultural Criteria ii , iv Designated 1988 ( 12th session ) Reference no .