Climate risks for your property: flooding, heat & foundation rot

Why climate risks are becoming an increasingly important factor when buying a house in the Netherlands.

The Netherlands sits largely below sea level and is dealing with increasingly extreme weather. For house buyers, it's therefore crucial to know what climate risks apply to a specific address. A property that looks perfect today could face water damage, foundation problems or extreme heat twenty years from now.

The four main climate risks

1. Flood risk

The Netherlands has some of the best flood defences in the world, but the risk is not zero. The KNMI (Royal Netherlands Meteorological Institute) distinguishes two types of water-related hazards:

• Flood risk — the chance of a dyke breach or water overtopping the defences. Particularly relevant for areas in deep polders
• Pluvial flooding from extreme rainfall — surface flooding caused by cloudbursts. This also affects areas outside the flood zone, especially in heavily paved cities

2. Urban heat island effect

During heatwaves, cities can be 5 to 8 degrees warmer than the surrounding countryside. This urban heat island effect is caused by large amounts of stone and asphalt that absorb heat, combined with a lack of green space and water. For residents this means:

• Higher energy costs for cooling
• Health risks, especially for elderly people and children
• Poor sleep quality during tropical nights (>20°C)

3. Land subsidence

Large parts of western and northern Netherlands are affected by land subsidence. The peat soil compacts due to drainage, and this process is accelerating because of climate change. The consequences:

• Cracks in walls and foundations
• Higher costs for water management (more pumping needed)
• Sewerage problems due to settlement

4. Foundation rot and structural problems

Approximately 750,000 homes in the Netherlands are built on wooden piles. When the groundwater level drops — due to drought or land subsidence — the tops of the piles become exposed above the water line. This leads to rotting and fungal decay. Foundation repair easily costs €40,000 to €100,000 per property.

How do you check the climate risk of an address?

There are several sources where you can look up climate risks:

• Climate Effect Atlas (klimaateffectatlas.nl) — maps showing water damage, heat, drought and flood risk per location
• Overstroomik.nl — shows the expected water level in the event of a dyke breach
• KNMI Climate Scenarios — projections for 2050 and 2100 under different scenarios
• Buurtscan — combines the above sources into a single overview per address at buurtscan.com

Buurtscan displays a climate risk overview per address with data on water damage, urban heat island effect, land subsidence and flood risk. All data comes from official sources such as the KNMI and the Climate Effect Atlas.

Why climate risk matters for buyers

Climate risks have direct financial consequences:

• Insurability — some insurers charge higher premiums or exclude properties in risk areas
• Property value — research shows that properties in flood-prone areas appreciate less over time
• Foundation costs — unexpected costs of tens of thousands of euros for foundation rot or settlement
• Energy costs — properties in urban heat islands have higher cooling costs
• Quality of life — increasing heatwaves and extreme rainfall affect daily living

Combine the climate risk with the WOZ property value trend, safety figures and the liveability score for a complete picture of your future home.

With the Buurtscan Chrome extension, you can see climate risks right alongside property listings on Funda and Pararius.