In the course of the 20th century, Chelsea underwent the
most dramatic shift in its history, from an area which,
apart from the neighbourhood of Knightsbridge and
Cadogan Square, was a largely unfashionable lower
middle- and working-class one with low demand, in
which artists and others with low or irregular incomes
could rent homes, to one where, after the property boom
of the 1980s, was one of the most expensive and desirable places to live in London.