Cities are envisioning a change in the use of public space. Urban areas previously occupied or used by private cars are being transformed into public spaces, a welcome change for kids. Yet children are generally excluded from the design and planning phases of these projects. Hence, the FURNISH-KIDS initiative aims to redesign urban spaces that will be tailored to children’s needs. Using a collaborative process to gain insights from local communities in Milan and Barcelona, FURNISH-KIDS will create prototypes in public spaces to be tested by children, as well as an urban living lab experience.