Greening Taxes (2015 – )

Ministry of Infrastructure and Water Management

Tax differentiation can be put forward as an incentive for broader awareness on climate adaptation. Advantage on taxes offers a financial leverage for the investment in a green roof or related measure.

Commissioned by the Delta Plan on Spatial Adaptation we identified various types of financial incentives that municipalities and water boards could use to encourage residents and entrepreneurs to adapt their buildings and gardens. The report shows trends in financial incentives and opportunities to link to other sustainable themes. The accompanying pamphlet with infographic calls on municipalities and water boards to collaborate in taking next steps.

In the Green Deal Green Roofs we explored the legal and financial aspects of tax differentiation for three forms of water taks and real estate related tax. Pilots will serve as a test for the scalability of the concept.


  • Advisory group: Ministry of Infrastructure and Water Management, the Association of Netherlands Municipalities, the Dutch Water Authorities, the Association of Provinces of the Netherlands, RIONED Foundation, Amsterdam Rainproof, municipality of Rotterdam, Water board Hunze and Aa’s, Ambient.
  • Project team from Green Deal Green Roofs: boards Vechtstromen, Aa en Maas, De Dommel, municipalities of Enschede, Rotterdam, and Son en Breugel, VEBIDAK.


To explore the possibilities and effectiveness for tax differentiation by

  • Collecting and describing existing practices
  • Experimenting and calculating pilots

Role and activities NextGreen

Process management | Report development | Facilitation advisory group | Organising pilot learning process
In collaboration with Stroom en Onderstroom

Results and more…