Leonie Andriesse, an urban planner who has turned into an expert on housing. After working for consultancy agencies for more than seven years, she switched to the municipality of Rotterdam in 2009. Since then, she has been advising the mayor and aldermen of Rotterdam on a wide range of housing issues, ranging from the pricesegmentation in the urban housing stock (citywide and areaspecific), quality of houses in general and for specific interest groups like families and the elderly, the distribution of (public) housing and liveability in and around the house. She recently wrote the new strategic housing vision 2030 and rules for the relocation of people currently living in houses that are being demolished. She works closely with the local housing associations and has for many years made so called performance agreements with them.