The Dutch mortgage market is internationally regarded as one of the most stable and predictable investment categories. Strong regulation, conservative lending standards, and a deep-rooted culture of financial responsibility ensure that investors have been able to count on consistent returns and relatively low risks for years. That foundation is not in question. On the contrary: it is precisely the reason why the Netherlands remains attractive in a world where uncertainty is increasing rather than decreasing.
Against this backdrop, one development deserves attention—not as a threat, but as a further professionalization of the market. Because in addition to the financial assessment of mortgages, there is an increasing focus on the physical characteristics of the collateral and the environment in which a home is located.
Where is the house located? In an area with land subsidence, seismic activity, or an increased risk of flooding? These are factors that, until now, have had a limited impact on mortgage rates, which in the Netherlands are largely set uniformly based on financial characteristics such as loan-to-value and fixed-rate period. That uniformity has contributed to the stability and transparency of the market—two qualities that investors particularly value.
The next step is now in sight. As of April 1, it is mandatory to explicitly address the condition of the foundation in property appraisals. This is not a sign of increased risk, but rather of improved data quality. Foundations form the basis of a home, and a better understanding of them makes appraisals more accurate and risks more manageable.
The scale of the issue underscores its relevance: an estimated 400,000 to 550,000 homes in the Netherlands are affected by foundation problems or face an increased risk of such issues, with the potential number rising to 700,000 to 800,000 homes. These are substantial numbers, but they are also easy to interpret: these are known, geographically concentrated, and increasingly manageable risks, to which policy, technology, and financing are adapting ever more effectively.
Moreover, the Netherlands is preeminent among countries accustomed to dealing with physical risks. Water management, spatial planning, and architectural innovation have been at the core of the Dutch system for centuries. Precisely because of this, many of these risks are not abrupt or unpredictable, but gradual, transparent, and—more importantly—manageable.
From an international perspective, it is striking that other markets, such as the United States and the United Kingdom, more often translate risks directly—and sometimes abruptly—into price differences or restrictions on financing. The Netherlands opts for a more gradual and balanced approach, in which stability is paramount and changes are implemented step by step. This prevents market shocks and helps maintain confidence—a crucial factor for investors.
The fact that physical and location-specific risks are now becoming more apparent should therefore not be seen as a deterioration of the risk profile, but as an enhancement of transparency. And transparency is the foundation of well-functioning markets. After all, uncertainty lies not in what we know, but in what we do not know.
That does not mean there are no challenges. It remains important to carefully manage how these risks are translated into financing to prevent undesirable regional effects. Here, too, there is a clear role for the government, which contributes to keeping risks manageable through investments and guarantees.
But at its core, something fundamental is changing for the better: the Dutch mortgage market is evolving from a strongly financially driven system to a broader, integrated risk model in which physical factors also play a role. Not to increase uncertainty, but rather to better understand and manage it.
For investors, this is no cause for caution, but rather a confirmation of the market’s quality. A system that identifies risks in a timely manner, makes them transparent, and integrates them in a controlled way is, by definition, more robust than a system that ignores risks.
The Dutch mortgage market thus remains what it always has been: a stable, reliable, and future-proof investment environment. And it is precisely by taking steps now to better understand location and foundation risks that this foundation is further strengthened.