
E.ON District Heating Lawsuit in Germany: What Renters Need to Know
A class-action lawsuit against E.ON over district heating price hikes of hundreds of percent has started in Germany. Here's what it means for expat renters.

If you have ever sweated through a German summer in a top-floor apartment and asked your landlord if you could install an air conditioner — only to be told no — you are not alone. Under current German rental law, tenants have no guaranteed legal right to install air conditioning units in their homes. Landlords can refuse, and many do. Now, Federal Justice Minister Liane Hubig has publicly called for that to change. She wants to introduce what she describes as "practical rules" that work for both tenants and landlords. For the millions of expats and immigrants renting apartments across Germany, this proposal could be a significant quality-of-life development worth following closely.
Under Germany's existing rental law (Mietrecht), tenants are generally not allowed to make structural or technical changes to their apartment without explicit written permission from the landlord. Installing an air conditioning unit — particularly one that requires drilling through an outer wall for ventilation — typically falls into this category. Landlords can deny the request, and there is no legal obligation for them to agree. In practice, many landlords refuse, citing concerns about noise, building aesthetics, structural integrity, or potential damage. Some older buildings also have restrictions tied to heritage protection rules. This means that even as German summers have grown hotter — with record temperatures recorded in recent years — many tenants have been legally unable to install basic cooling systems in their own homes.
Federal Justice Minister Liane Hubig has spoken out in favour of changing this situation. She stated publicly that Germany needs "practical rules" (praktikable Regelungen) that respect the interests of both sides: tenants who want to stay cool and landlords who have legitimate concerns about their properties. While the minister has not yet published a detailed draft law, the direction is clear: tenants should have some form of legal entitlement to install air conditioning, potentially under certain conditions or with specific technical requirements. This would likely mirror rules that already exist for other tenant-requested modifications, such as accessibility adaptations (for example, installing a wheelchair ramp or grab bars), where landlords are required by law to permit changes if the request is reasonable.
For expats renting in Germany — particularly those coming from warmer climates — the lack of air conditioning can be a genuine shock. Germany has historically had mild summers, and older apartment buildings were simply not designed with cooling in mind. Many flats have no ceiling fans, no ducted air systems, and small windows that trap heat. As climate change pushes summer temperatures higher, this is becoming a health and comfort issue, not just a preference. If Hubig's proposal becomes law, it could mean that:
It is important to note that this is still at the proposal stage. No legislation has been introduced in parliament yet, and the timeline for any change is unclear.
While the law has not changed yet, there are some steps you can take as a renter in Germany:
Yes, under current German law, landlords can refuse to allow tenants to install air conditioning, especially if it involves any structural changes to the apartment or building. If you install one without permission and cause damage or alter the building, you could be held liable. Always get written consent before installing anything.
The exact scope of any future law is not yet defined. However, similar rules for accessibility modifications already apply broadly across rental housing. It is possible that listed or heritage-protected buildings could be exempt, or that additional conditions could apply in shared buildings (Mehrfamilienhäuser) where common areas or the building facade are affected.
There is no confirmed timeline. The minister has expressed political will, but a formal legislative proposal must still be drafted, reviewed by parliament, and passed. Given Germany's coalition government dynamics, this could take months or longer. No change is in effect today.
Minister Hubig's proposal is a welcome signal for the many renters in Germany who have struggled to cope with summer heat. However, it remains a political statement, not yet a legal reality. If you are currently renting and want to install cooling, your best immediate steps are to review your contract, speak to your landlord in writing, and consult a local Mieterverein if needed. Deutschland4U will continue to track this story as it progresses through Germany's legislative process.
Source: Tagesschau (NDR/ARD)
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