From 2016 to 2018 OC OPEN CITY Research Group of Politecnico di Milano / Dastu Department was involved within the European Program MAPS (acronymous for Military Assets Public Space), part of URBACT, financially supported by the European Union. The program was leaded by the Municipality of Piacenza, as city leader of a group of 10 European cities which shared the architectural and urban topic of neglected military assets’ regeneration. Together with associations and citizens, Politecnico di Milano research group worked on ideas and visions for reuse of Laboratorio Pontieri area (one of the case-study of OC2018) with an open and participatory approac as player of ULG (Urban Local Group). For the conference final presentation (in Serres, Greece, at the end of April 2018), Politecnico was asked to collaborate editing the IAP (Integrated Action Plan), the final report of MAPS / URBACT Program. Considering the similar topics and case-studies, we present here some brief parts of the research developed within MAPS program.