Green space factors and points systems have been used in several European cities as a policy instrument to attain desired levels of green and blue surfaces in new property developments (Farrugia et al., 2013; Fongar, 2015; Kruuse, 2011; Szulczewskaa et al., 2014). Different green and blue 'elements' are scored based on their importance for a particular ES, or a bundle of services, and an area-weighted score is calculated for a proposed property development.
