The Rainwater Refund Calculator

Separate sewer – are you ready?

Get an estimate of what it costs to disconnect your rainwater, and whether a refund can cover part of that cost.

How the notice works

  1. The municipality orders separate sewers in your area.
  2. Your rainwater must be disconnected from the wastewater sewer.
  3. The deadline is stated in the notice – typically 1–4 years.
  4. Your utility may refund the disconnected share.

Calculate your estimate

Prefilled from the building register (BBR) if we can find your property.

Driveway, patio and similar. Optional.