Water efficiency in Europe: what different approaches to metering mean for the road to 2030 

Europe is entering a new phase in how it manages water. 

Water scarcity, rising costs and growing pressure on natural resources are making water efficiency increasingly difficult to treat as a secondary sustainability issue. The European Water Resilience Strategy reflects that shift, setting an ambition to improve water efficiency by at least 10% by 2030 and placing greater emphasis on digitalisation and smart water management. 

But reaching a shared European target does not mean every market is starting from the same place. 

Across Europe, the ability to understand how much water is being used, where it is being used and when consumption begins to change still varies considerably. For property owners, that creates a much bigger question than whether water is being measured at all. 

It is about whether there is enough visibility to actually manage it. 

Europe has one ambition, but many starting points 

Water management has developed differently across European markets. Regulation varies, metering infrastructure varies and so does the level of insight available to property owners. 

A recent pan European study commissioned by WE Data Europe illustrates just how wide those differences can be. Cold water submetering penetration is estimated at around 15% in Norway, while Sweden is described as having very low penetration. In the Netherlands, individual cold water submetering is not mandatory and the overall penetration rate remains unknown. 

Elsewhere in Europe, the situation can look completely different. Poland, for example, is estimated to have around 95% penetration. 

These figures are not a ranking of which country manages water best. What they reveal is something more important: Europe is pursuing greater water efficiency from very different levels of visibility. 

And that matters, because efficiency is difficult to improve when consumption itself remains difficult to understand. 

Better visibility changes what property owners can manage 

For a long time, knowing total water consumption was often enough. A meter reading or utility invoice could show how much had been used, and comparisons over time could indicate whether costs were moving in the right direction. 

That approach becomes increasingly limited when the goal shifts from simply recording consumption to actively improving it. 

Property owners need to understand when consumption changes, whether a change is expected and where attention is required. Across larger portfolios, they also need to know which buildings are performing well, which are moving in the wrong direction and where an intervention could have the greatest impact. 

This is where digitalisation begins to change the role of water data. 

The Dutch findings in the WE Data Europe study offer an interesting example. Researchers analysed 21 years of consumption data and found that average water consumption after digital meter installation was 6.2% lower than during the reference period. The effect remained observable for up to eight years. 

The result should not be treated as a prediction for every building or every European market. But it demonstrates why better measurement matters. When consumption becomes more visible, organisations have a stronger foundation for understanding performance and identifying opportunities to improve it. 

The next step is not simply more meters 

As Europe moves towards its 2030 water efficiency ambitions, the temptation may be to frame progress in terms of technology adoption alone. 

But installing more meters will not automatically create more efficient buildings. 

A property owner can collect enormous amounts of consumption data and still lack the ability to identify what requires attention. The real shift happens when data can reveal abnormal consumption, expose potential leaks, support comparisons across properties and help organisations prioritise where to act. 

This distinction becomes particularly important for large property portfolios. Different buildings may use different meters, technologies and data sources, while operating across markets with different infrastructure and regulation. 

The challenge is therefore moving beyond measurement towards a more consistent understanding of water performance. 

From European ambition to operational control 

Europe's water efficiency target provides a clear direction, but achieving it will ultimately depend on thousands of operational decisions made across buildings, portfolios and cities. 

For property owners, better water management starts with visibility, but it cannot end there. Data needs to become useful enough to support decisions, identify inefficiencies and show whether actions are actually delivering results. 

This is where Smartvatten's role goes beyond collecting water readings. By bringing water data together and continuously analysing consumption across property portfolios, Smartvatten helps organisations understand where water is going, recognise changes earlier and focus attention where it can make the greatest difference. 

Europe does not need every market to manage water in exactly the same way. But as 2030 approaches, the ability to move from assumptions to measurable water performance will become increasingly important. 

Because a water efficiency target only becomes meaningful when organisations can see whether they are actually getting closer to it. 

Want to understand where the biggest opportunities for water efficiency are across your property portfolio? Explore how Smartvatten can help turn water data into measurable action.