How the New Foundation Risk Score Impacts Your Mortgage

How the New Foundation Risk Score Impacts Your Mortgage

Buying a home in the Netherlands just got a little more transparent—and a bit more complex—thanks to the introduction of a foundation risk score in every valuation report. Effective April 1, 2026, valuers must incorporate this risk assessment to give you an early heads-up on possible subsidence or structural repair costs. In this article, we explain what the foundation risk score is, how it affects your mortgage application, and practical steps you can take to avoid unwelcome surprises.

Understanding the Foundation Risk Score

The foundation risk score is a letter grade from A (low risk) to E (very high risk) that signals the likelihood of foundation issues. It draws on data from the Dutch Knowledge Centre for Foundation Problems (KCAF), considering factors such as soil type, groundwater levels, construction period, and regional history of subsidence. Note that the score is not a substitute for an on-site technical survey—it’s a data-driven estimate, designed to:

• Provide early transparency on potential foundation costs
• Inform lenders and buyers before finalising the mortgage
• Encourage proactive due diligence

The A–E Scale

• A (Low Risk): Minimal chance of settlement. No immediate concerns.
• B (Limited Risk): Slight, manageable risk. Routine maintenance usually suffices.
• C (Increased Awareness): Elevated risk. Lenders take note, but additional research is rarely needed.
• D (High Risk): Significant risk. A QuickScan foundation investigation is typically requested.
• E (Very High Risk): Very likely foundation issues. Further technical assessment is almost always required.

For grades D and E, the valuer must include a clear explanation of how the risk impacts the property’s value—no more cryptic letters without context.

How Lenders Use the Score in Your Mortgage Application

The foundation risk score plays a direct role in how banks and mortgage providers evaluate your loan. Here’s what to expect:

Grades A, B, or C

If your property scores A, B, or C, the process remains largely unchanged:

• Your mortgage application proceeds under standard conditions.
• LTV (Loan-to-Value) ratios and interest rates are unaffected by the foundation score alone.

Grades D or E

A D or E grade triggers extra steps:

1. QuickScan or Full Technical Investigation: Lenders require additional foundation research before finalising the valuation.
2. Valuation Adjustment: Depending on the investigation’s findings, the property’s valuation may be lowered to account for repair costs.
3. Loan Conditions: Lenders might impose special conditions, such as:
   • A reduced maximum mortgage amount to cover anticipated repair expenses.
   • A conditional offer subject to satisfactory foundation remediation plans.

In extreme cases, if repair costs exceed acceptable risk thresholds, some lenders may decline to finance the purchase altogether.

Effects on Your Maximum Mortgage Amount

Foundation repairs can escalate quickly—often into tens of thousands of euros, and in severe cases over €100,000. Lenders safeguard their positions by factoring potential remediation costs into your borrowing capacity. For example, a high-risk score might reduce your allowable LTV ratio by 5–10% to leave room for foundation repairs. Always ask your mortgage advisor how a D or E rating could alter your financing options.

Regions and Properties to Watch

Foundation risk is not uniform across the Netherlands. Pay close attention if you’re looking in areas known for older construction or challenging soil conditions:

• The Randstad ring (Amsterdam, The Hague, Rotterdam) with many pre-1970 homes on wooden piles.
• Peat-meadow regions in Friesland and parts of Groningen.
• Properties near fluctuating groundwater zones or reclaimed land.

According to recent estimates, around 500,000 Dutch homes face an increased risk of subsidence during extended droughts. Still, most properties nationwide earn an A or B.

Steps to Protect Your Purchase

Since the foundation score only appears at the valuation stage—typically after signing the purchase agreement—it pays to prepare:

1. Request Pre-Valuation Data: Ask your buying agent or real estate broker to check the foundation score before you bid.
2. Include a Foundation Clause: Similar to a financing clause, this protects you if the valuation reveals D or E risks.
3. Discuss Options Early: Talk through worst-case scenarios with your mortgage advisor to understand how lenders might react.
4. Budget for Contingencies: Set aside 5–10% of your total budget for potential foundation work, especially in known risk areas.

Conclusion

The addition of a foundation risk score to Dutch valuation reports delivers greater transparency and reduces unexpected costs for buyers. By understanding the A–E grading system and its implications for lenders, you can navigate your mortgage application with confidence and avoid costly last-minute surprises.

Whether you’re planning to buy or simply reviewing your financing options, staying informed is key. And if you’re also on the hunt for rental properties or looking to compare housing solutions, remember that Luntero is the easiest way to find up-to-date rental listings across the Netherlands.