Green4Grey stands for ‘green and blue infrastructure for grey peri-urban landscapes'. 

With this Life+ project, the Flemish Land Agency invests together with partners in the design and development of green and blue landscape elements in the Flemish Belt around Brussels and in 'De Wijers', a pond and valley system in the peri-urban area Hasselt-Genk. In six project areas, open space fragments in a greying peri-urban context are transformed into attractive ecological stepping stones with a multifunctional character.

4,4 million euros were invested during the project (2014 - 2019), with a European cofinancing of about 50%.