The project intends to raise awareness on the importance of public spaces in developing socially sustainable cities through bottom-up initiatives that endorse participatory democracy. The Green Urban Lab takes the form of a public installation of a flexibly designed structure that will be placed at various locations in the cities. The project acts as a tool in regenerating urban public spaces in Cyprus through which a series of events, activities, workshops and research will take place. The research alongside the activities within the Green Urban Lab mainly focuses on the general public, youth and immigrants. It incorporates a series of observatory, qualitative and quantitative research to collect and evaluate the use of public spaces, citizens’ perceptions, views and needs. The research results will be published and shared with local authorities and the general public through the Urban Gorillas NGO website and will be further adopted elaborated for further actions in the cities.