Westminster
Westminster covers much of central London, having a high populace density and including several of London's chief tourist attractions such as Buckingham Palace, 10 Downing Street, Oxford Street, the Houses of Parliament and Soho. The city was only set up in 1965, but its origins backdate to the Norman Conquest.
A lot of the city retains Georgian and Victorian housing styles and keeping these properties maintained is essential to holding and increasing value.