Urban planning research and practice provides forceful evidence that urban place-making processes should not be driven by experts and planning professionals alone: they should also build on the experiential knowledge and values of lay citizens. Experience shows that the construction of the green, compact, and healthy city fostered by sustainable development policies requires considering how places are used and valued by all relevant stakeholders. SoftGIS is a form of web-based Public Participation Geographic Information Systems (PPGIS) that provides both a method and tools for mapping the values that people attach to places and for integrating these in professional urban planning practice. This report focuses on three softGIS tools: Mapita’s Maptionnaire, Spacescape’s Bästa Platsen, and SKL’s Geopanelen. Five case studies from Finland and Sweden are analysed so as to discuss some of the main substantive issues surrounding the uptake of softGIS applications urban planning practice and decision-making, particularly in the context of urban densification measures. In so doing, the extent to which softGIS can support dialogue between lay citizens and planning professionals is assessed, with a focus on urban ecosystem services in green areas. It is demonstrated that the potential of softGIS to help broaden communities of practice in urban planning hinges on a conducive institutional context for public participation and dialogue. Furthermore, it is argued that the use of softGIS tools is optimised when it is integrated in a comprehensive multifunctional toolbox that combines both physical and digital forms of public participation.