Flanders has decided to require new buildings and deep renovations to include larger rainwater tanks. A measure justified by climate change, and by the fact that we are now faced with both long periods of drought and heavy rainfall. It should also be noted that the presence of such cisterns is beneficial in the fight against flooding.
“They thus have a “buffering” effect. This water is used gradually and this reduces the quantity of water which arrives at once in the rivers or the sewers during critical periods. »
➜In the North of the country, as in Brussels, rainwater tanks are already compulsory in new houses, which is not the case in Wallonia.
➜One municipality in five makes the issue of a town planning permit conditional on the presence of a rainwater tank: and bonuses are possible!