Our project proposal entitled “Nature-based solutions for the ecological regeneration and restoration of urban and periurban areas in Donostia/San Sebastián” (acronym: NATUR-BIDEAK, 2016-2017) has been approved by IHOBE-Ecoinnovation Projects (Basque Government). The project has the following partners: TECNALIA RESEARCH AND INNOVATION and NEIKER-Instituto Vasco de I+D Agrario. This project will help us become familiar with the application of nature-based solutions for the ecological regeneration and restoration of urban and periurban areas. During this project, we will pay special attention to the assessment of biodiversity (belowground: microbial, mesofauna, macrofauna; aboveground: plants and birds) in the restored urban and periurban areas of Donostia/San Sebastián.