Areas where cities meet natural parks often exhibit environmental degradation. Yet, these border zones hold great potential for reconnecting citizens with nature. Similarly, the needs of people at transitional stages of life, such as the young and elderly, are often underrepresented in the public realm. GENERation Nature aims to bridge these challenges by integrating and enhancing the previous Elderly on Track and OPEN NATURE New European Bauhaus projects to remediate a new boundary site in the Collserola Natural Park, close to the Metropolitan Area of Barcelona. Three newly-combined target communities will be engaged and benefit from the project: young public school students, elderly persons from surrounding neighbourhoods and architectural master’s students. The Col·legi Montserrat school gardens will be improved based on: insights from a foraging walk with the elderly and youths, co-design with all target groups and advanced biobased installations by the master’s students.