översvämningszon
översvämningszon is a Swedish term that refers to a designated area that is at risk of flooding. The concept is established through the Swedish Water Inspection Authority (Vatteninspektionen) and is used in land-use planning, insurance, and environmental management. Zones are classified according to the probability and potential severity of flood events, typically based on historic data, hydrological modelling and future climate projections.
The primary categories are the 1-percent flood zone (1 % fönster) and the 0.2‑percent flood zone (0.2 % fönster).
For those living in a designated flood zone, insurance requirements vary. Homeowners insurance is typically mandatory
The concept of översvämningszon is central to Sweden’s flood‑risk framework, ensuring that planning and development take