The Climate Damage Monitor shows how much insured damage extreme weather has caused over recent years. The figures mainly pertain to damage to private property, supplemented by commercial damage ensuing from the largest damage events.
The Basic Green and Grey Map shows the proportion of trees, shrubbery, and paved areas in each neighbourhood. The map was developed in 2021; the intention is to update the map annually. Thus, it may constitute an interesting benchmark for monitoring.
Interested in the effectiveness of measures? Take a look at the Urban Green-blue Grids website. It features a databank of adaptation measures, research results on the effectiveness of measures, and practical examples of actual measures.