The vast majority of people looking to buy a house now begin their search online.
Using data from the UK's leading real estate portal we can map the geography of housing search.
Most search in London is very local (5 sq. km or less) but it also varies by property type and value.
Urban economic studies can benefit from the incorporation of the kinds of user-generated data sets used here.
In London, the way website users segment the city may be closely related to the geography of its housing submarkets.