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Block of new-build apartments, Berlin
Germany's rental market is no longer defined simply by rising rents. It is increasingly defined by falling residential mobility. As inadequate housing supply, limited housing turnover and worsening affordability reinforce one another, tenants are remaining in existing homes for longer whilst competition intensifies for the shrinking number of properties coming onto the market. The result is a rental market that is becoming progressively harder to enter, leave and move around within.
Rents across Germany's 40 largest cities have risen by an average of 51% over the past decade, according to data compiled by the market research institute Empirica for the German Trade Union Confederation. In Berlin, asking rents have increased by almost 77% since 2016, whilst Rostock has recorded an increase of more than 80%. Gross wages over the same period have risen by only around 30%, leaving affordability under increasing strain.
The latest figures suggest that the pace of rent growth is beginning to moderate. According to the IW Cologne Housing Index, advertised rents rose by 4% nationwide in the second quarter of 2026 compared with a year earlier, still comfortably above inflation of 2.6%. JLL's separate analysis of Germany's eight largest cities recorded median asking-rent growth of 3% in the first half of the year, down from 6.8% during the same period in 2025.
Yet the slowdown masks a more important shift. Rental pressure is no longer concentrated in Germany's traditional metropolitan markets. The IW found that large cities outside the Top 7 recorded rent growth of 4.9%, compared with 2.9% in the seven largest cities, whilst surrounding districts posted increases of 3.9%. The geography of rental inflation is becoming broader even as headline growth moderates.
The same redistribution is visible within the rental market itself. JLL found that asking rents for the most affordable tenth of properties rose by 5.5% during the first half of 2026, compared with only 2.3% for the most expensive homes. As Dr Sören Gröbel, Director of Living Research at JLL Germany, observes, willingness to pay at the upper end of the market is increasingly reaching its limits. Affordability has become the principal driver of rent growth. Rather than easing market pressure, slower headline growth reflects the fact that higher-income households have reached the limits of what they are prepared or able to pay, whilst competition has intensified for more affordable accommodation.
A market with too little movement
The explanation lies less in short-term demand than in the market's declining residential mobility.
The IW calculates that the number of rental listings nationwide remains almost 12% below the level recorded at the beginning of 2022. In Hamburg, advertised supply has fallen by 57%, whilst Frankfurt and Leipzig have seen declines of 43% and 40% respectively. The shortage is no longer simply one of insufficient construction. Increasingly, there is too little movement within the existing housing stock.
Many tenants remain in homes that no longer correspond to their household circumstances because existing tenancy agreements are significantly cheaper than rents available on the open market. According to IW property economist Pekka Sagner, the market lacks not only new housing but also residential mobility. Existing housing stock is therefore being utilised less efficiently, whilst further tightening of rental regulation risks reducing the available supply even further.
Berlin illustrates how easily headline figures can mislead. Rental listings currently stand around 43% above their 2022 level, apparently making the capital an outlier. The IW attributes this largely to the distortions created by the earlier rent cap, which caused advertised supply to collapse immediately after its introduction. Even after the subsequent recovery, supply remains well below historical norms. JLL likewise reports that asking rents for existing apartments in Berlin declined by 4.2% during the first half of 2026, reflecting a market still adjusting to earlier regulatory intervention rather than a genuine easing of underlying shortages.
The owner-occupied housing market tells a similar story from the opposite direction. Since early 2022, the number of properties offered for sale has almost doubled. That increase does not reflect stronger construction activity but weaker demand. Higher mortgage rates have reduced the pool of potential buyers, leaving properties on the market for longer. Supply has become more visible because transactions have slowed, not because more homes are being built.
Affordability becomes the defining constraint
Frankfurt illustrates how these trends affect households in practice. Estate agency Immoconcept calculates that asking rents have risen by 47% since 2016, compared with wage growth of around 30%. A family seeking to spend no more than 30% of its net income on an 80-square-metre flat in the city's Westend-Süd district would require almost €7,000 of monthly net income. Even in the city's most affordable district, Harheim, the required income remains well above the earnings of many households. Half of Frankfurt's population has a monthly disposable income below €3,000.
Immoconcept also found that almost half of the rental advertisements it reviewed in Frankfurt potentially exceeded the permitted local comparative rent by more than 10%, highlighting the increasing tension between market rents and existing regulatory limits. Meanwhile, Berlin's newly published Mietspiegel has already prompted a surge in rent increase notices, although the Berlin Tenants' Association stresses that many demands fail to satisfy the legal requirements governing permissible rent increases.
None of these developments points towards a rental market that is beginning to normalise. Completion figures fell again during 2025, building permits remain well below historical averages despite recent improvements in several cities, and construction costs continue to weigh on new development. The result is not simply a market of higher rents, but a market that is becoming progressively less mobile, with scarce supply, weak residential turnover and mounting affordability pressures reinforcing one another. Rising rents are no longer the story in themselves. They are increasingly the visible symptom of a housing market that is steadily seizing up.