Karen Chapple discusses gentrification and how to keep our cities diverse.

As she explains while telling two stories about finding a place to live, she has often found herself asking 'Am I a gentrifier?'. A professor of City and Regional Planning at the University of California, Berkeley, Karen argues that in the past we had to fit our own story with the story of the neighbourhood we wanted to move into; now data can offer a much richer picture of where we live.

Producer: Giles Edwards.