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Bonus for a rainwater tank

The City of Brussels gives its inhabitants (postal codes: 1000, 1020, 1120, 1130 Brussels) a bonus for a rainwater tank.

The use of rainwater is cost-effective and it reduces drinking water consumption by participating in the fight against floods and improving the hydrological balance in an urban environment.

For several uses, rainwater is an important alternative to city water: flushing toilets, maintenance and cleaning of the home, washing, washing the car, watering the garden…. In Belgium, the potential use of collected rainwater covers more than 50% of the average consumption per household.

The City of Brussels grants a bonus for the installation, repair or replacement of rainwater collection systems (tank, reservoir) that are connected at least to a toilet in buildings located on its territory.

Amount of the bonus?

The amount of the municipal premium is set at 1,000 euros per individual installation.

The amount is increased by 10% for works carried out by social economy companies, tailor-made companies or social integration companies.

The amount is increased by 20% for the installations carried out in a building intended for rental (the owner is not domiciled in the building).

A single bonus is awarded per property and per 5-year period.

The intervention of the municipality may not be more than 100% of the investment.

Regulation

Technical conditions to be observed:

The tank or reservoir must have a minimum capacity of 2,000 liters. However, it is recommended to calculate the capacity of the tank based on the roof area.

The tank must be connected to at least one toilet reservoir (sink). Other connections and applications are recommended.

How to apply?

Please fill in the application form and send it to the Eco Advice Unit. This has to be done within 3 months after the end of the works.

The regulation and form are only available in Dutch and French.