The database consists of three spatial layers: (a) The investment zone (41.4% of Greek land): it includes the three most fragmented zones (very high, high and medium) according to the Landscape Fragmentation Indicator (2015), of the territory outside the terrestrial part of the Natura 2000. (b) The windfarm-free zone (58.6% of Greek land): it includes the terrestrial part of the Natura 2000 network and the two least fragmented zones (very low and low) outside the network. (c) Windfarm sites (2020): 260 applications of operating windfarms (red polygons) and 1578 applications of windfarms in other permission stages (black polygons).