Starting at July 2021 all houses in The Netherlands will receive a so called ‘foundation label. This label indicates the condition of the foundation. It indicates the risk that the house will have unwanted settlements and that the (new) owner will have to repair or even replace the foundation. Issuing that label is a general assessment of the risks of a particular type of home, foundation and location. Especially the timber foundations under old houses are sensitive to decline of the groundwater table. As an effect of that, the timber foundation piles will stick above the water table. In the air-water zone, the wood of the foundation piles and foundation beams will rot, reducing its bearing capacity.

Allnamics Foundation Experts ( is researching the quality of existing and new constructed foundations for many years. The foundation usually receives little attention of its owner or when a house is bought: it is under ground, it is assumed that if a house has been standing for years, a problem-free future is guaranteed. However, there are plenty of reasons to have the quality of the foundation determined. For example when buying/selling or splitting the ownership of a house. Some areas in the Netherlands are strongly declining requiring a lowering of the water level, or drying out of the soil, with all the risks associated with certain types of foundations. If a foundation needs to be repaired, it often costs a lot. All parts of a house are accessible for maintenance, improvement of replacement, the foundation is an exception.


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