Polish water management and runoff regulations

Polish water and nature conservation laws regulate how landowners manage water runoff and retention to prevent damage to neighboring properties and protected environments.

Under the Water Law, landowners are prohibited from altering the direction or intensity of rainwater or meltwater runoff if such changes cause damage to adjacent lands. Prohibited actions include raising ground levels, constructing retaining walls, or building impermeable driveways that obstruct natural flow. Affected neighbors may seek compensation or demand the restoration of the previous land state. Local municipal officials, such as mayors, have the authority to mandate remedial measures like drainage systems or retention tanks. Legal claims must be initiated within five years of discovering the damage.

Furthermore, when implementing water retention measures within protected areas—including national parks, nature reserves, or Natura 2000 sites—landowners must notify the Regional Directorate for Environmental Protection (RDOŚ). Pursuant to Article 118 of the Nature Conservation Act, such works may be subject to a 30-day waiting period following notification to allow for potential objections from the RDOŚ.