Much controversy surrounds the SBB Neugasse project in the city Zurich. It will be put to the vote for Zurich citizens on 25 September. On a 30-hectare site in a well-connected location, only 375 flats are envisaged. This means that there is not sufficient densification, not as much housing is being created as would be possible. Spatial development scientist Sibylle Wälty shows how this area could contribute to alleviating the housing shortage. To the article on the ETH «Zukunftsblog»