Flood Risk Map

View Dutch flood risk areas from the official PDOK / Rijkswaterstaat service and search by place.

Ready to load the flood risk overlay.

Source

Official PDOK / Rijkswaterstaat flood risk layer for the Netherlands.

How to Use This Flood Risk Map

Enter a place or city and click Search Place to center the map there with the official flood risk overlay applied. Adjust the opacity slider to make the base map more or less visible underneath the overlay, or toggle the overlay off entirely to compare the plain map. Reset View returns to the default view.

About the Data

The overlay comes from PDOK, the Dutch national geodata platform, sourced from Rijkswaterstaat flood risk data. It's built for national-level flood risk awareness and planning, not for property-level decisions — always check official municipal or Rijkswaterstaat sources directly before making decisions like buying property or assessing insurance risk.

Why an Opacity Slider Instead of a Simple On/Off Toggle

A flood risk zone rarely lines up neatly with things you actually care about — a specific street, a particular building, a neighborhood boundary. A fully opaque overlay hides that context entirely, while switching it off loses the risk data. The slider lets you find a middle ground: dial opacity down when you want to line the risk zone up against real streets and addresses underneath, and dial it back up when you just want to see the overall shape and extent of an at-risk area clearly, without the base map competing for attention.

FAQ

Does this cover areas outside the Netherlands?

No, the flood risk overlay is built on Dutch PDOK/Rijkswaterstaat data and only covers the Netherlands.

Can I use this to check flood risk for a specific address before buying a house?

Use it as a starting point only. For a decision that size, consult the official Rijkswaterstaat or municipal flood risk resources directly, since this map is a simplified overlay for general awareness.

Why does the overlay look different at different zoom levels?

The underlying data has a fixed resolution, so very close zoom levels may show the same risk area as a coarser block rather than a precise boundary.

What's the best opacity setting to actually read the map?

Lower the opacity when you want to match the risk zone against specific streets and buildings underneath it, and raise it when you want to see the overall shape and extent of a risk area clearly. There's no single correct setting — the slider exists precisely because both views answer different questions.