Mieterverein Düsseldorf präsentiert erschreckende Zahlen – Vermieter verlangen vielfach zu hohe Mieten

The article, published by the online newspaper Ddorf‑Aktuell and authored by journalist Ute Neubauer, presents the findings of the second Mietenmonitor study conducted for the Mieterverein Düsseldorf. The study analyses 5 500 rental offers for unfurnished apartments and additional data on furnished units, revealing widespread breaches of Germany’s rent‑control regulations in Düsseldorf.

For unfurnished apartments the median cold rent is €13.71 per square metre. More than half (51 %) of these listings appear to violate the rent‑brake, with many tenants paying €50‑100 or more above the legally allowed amount. In half of the suspected violations the rent could be reduced by at least €134.49 per month (€1 613 per year). A quarter of the affected units exceed the rent‑brake limit by €297 per month (€3 564 per year).

Eighteen percent of the advertised apartments are furnished, with a median cold rent of €19.09 per square metre – roughly 40 % higher than unfurnished units. Three‑quarters of these furnished offers are likely to breach the rent‑brake, and 11.7 % fall into the category of illegal rent‑wucher (excesses of 50 % or more).

The study identifies several districts with the highest incidence of suspected breaches, notably Oberkassel, Niederkassel and Unterbilk, where two‑thirds of listings are deemed unlawfully expensive. Other areas such as Heerdt, Lörick, Bilk and Flingern‑Nord also show significant non‑compliance.

Under §§ 556d‑556g BGB, a cold rent more than ten percent above the reference rent constitutes a breach of the rent‑brake. Exceedances of over twenty percent are classified as rent‑overcharging, punishable by fines up to €50 000. Overcharges above fifty percent qualify as rent‑wucher, a criminal offence.

The Mieterverein Düsseldorf offers an online tool that enables tenants to check whether their rent exceeds legal limits and to generate a pre‑written complaint to the city’s housing authority. To date, the authority has initiated 30 administrative proceedings under § 5 WiStG, and tenants can claim back overpaid rent for up to 30 months for violations occurring after 1 July 2020.

The association urges stronger monitoring by Düsseldorf’s housing office and political bodies, citing examples from Freiburg, Frankfurt and Hamburg. It stresses that systematic enforcement is essential to curb the rising trend of illegal rent increases and to protect affordable housing.

With roughly 34 000 members, the Mieterverein Düsseldorf provides legal advice and mediation, helping to resolve most landlord‑tenant disputes without court intervention. The study highlights the broader social issue of escalating housing costs affecting the majority of Düsseldorf’s residents.

The findings illustrate how unchecked rent inflation can undermine housing affordability, a core component of sustainable urban development. By exposing systemic non‑compliance and offering practical tools for tenants, the study contributes to policy discussions on ensuring equitable, long‑term housing solutions across European cities.