The planned changes to the water law shall increase the number of “rain tax” payers

At present such a levy is incurred by owners of real estate of the area of 3.5 thousand square metres, in which the area that is biologically active (through building development) amounts to 70% of real estate.

The draft act on investments within the scope of counteracting the effects of drought imposes the obligation to pay the levy by owners of real estate of the area of only 600 square metres, in which the building development takes up at least 50%. Building development also includes concrete sett paving which makes a uniform impermeable surface.

The changes shall concern not only owners of one-family houses or owners of shops and factories, but also residents of blocks of flats. This is most of all an effect of the proposition to delete from the act the principle according to which the levy is not incurred on real estate which is within open or closed drainage systems.

As an incentive they have also introduced a discount on the levy in the case of building on the plot infrastructure for holding water.  

The draft is expected to be adopted by the Council of Ministers as early as in this quarter.

Here is more information on the topic:

https://legislacja.rcl.gov.pl/projekt/12337151/katalog/12709767#12709767