The increasing number of metropolitan areas worldwide suggests the need for a more in-depth investigation of metropolitan neighbourhoods in order to explain the complex social dynamics emerging in these new contexts. As a matter of fact, the majority of the existing studies on spatial justice provided analyses and investigations focused on metropolitan settings. However, the issue of spatial justice also involves smaller urban areas and further research is needed in that sense. Our investigation analyses a case study of urban gardening that has been developed with the aim of valorising the central neighbourhood of an Italian mid-size city through proposing participatory planning interventions and requalification of urban sites. The urban gardening initiative has included several actors within the process of implementation. The investigated group of people potentially subjected to the spatial injustice is formed by the residents and the local retailers. A comparison between different stakeholders’ perspectives is provided in order to measure the positive and negative impacts of the initiative on the local community.