He actually lives in Clarence House (when in London), Buckingham Palace is currently only used for official business, parties etc.

Arguably, Buckingham Palace should be turned into a museum (like several other former royal residences, e.g. Tower of London, Kew Palace).

Well I guess so but Buckingham Palace is not so far away from Clearance House. So I brush it off as a technicality.

Once I was in London I saw Harry and William being ferried to the Clearance House while I was walking The Mall.