In an interesting morning read, the Independent visits Denmark Hill, and likes what it sees:

The station, the altered view and handsome houses are Denmark Hill's main attractions today. The hill is high enough to afford panoramic views of London's skyscrapers and helps explain the prevalence of well-preserved Georgian and Victorian houses.

The piece goes on to give some examples... but we suspect the best relative value is to be found by those with a bit more money to spend, looking at four or five bedroom houses.