Sirkku Wallin, PhD in Science (Spatial Planning and Transportation Engineering), is a visiting scholar at the Department of Built Environment, Aalto University, Finland. She is also a planning practitioner at the City of Espoo. The focus of her research is self-organised urban development and e-planning.Karolina Jarenko, M.Sc. in Political Philosophy, is a PhD student at the Department of Built Environment, Aalto University, Finland. She studies and helps develop self-organising and self-governing organisations, both in an urban and business context.Liisa Horelli, PhD in Environmental Psychology, is an Adjunct Professor at the Department of Built Environment, Aalto University, Finland. She has carried out action research for decades and published several articles on participatory urban planning and evaluation, especially from a gender perspective. Currently, she is interested in mainstreaming the blue and green infrastructure in expanded urban planning.