Can Tenants in Germany Install Air Conditioning? Law May Change

Introduction

If you rent an apartment in Germany — as the vast majority of expats do — you have probably felt the sting of a hot summer with no air conditioning and no legal right to install one. Under current German tenancy law, fitting a fixed air conditioning unit counts as a structural alteration, meaning your landlord can simply say no. Germany's justice minister is now pushing to change that, potentially granting tenants the legal right to install AC even without landlord consent. With climate change making German summers increasingly intense, this reform could matter enormously for millions of renters across the country.

The Current Legal Situation for Renters

German tenancy law (Mietrecht) is generally considered one of the strongest tenant protection frameworks in Europe — but it has a notable gap when it comes to home modifications. Any change that affects the fabric of a building, including drilling through walls to fit a fixed AC unit or heat pump system, requires the landlord's explicit written consent. Landlords have wide discretion to refuse, and many do, citing concerns about building aesthetics, structural integrity, or simply preference. Portable air conditioners that require no permanent installation are technically allowed, but they are significantly less effective and efficient than fixed split systems. For expats coming from southern Europe, Asia, or the Americas — where AC is standard — this can feel like a major quality-of-life gap.

What the Proposed Reform Would Change

The justice minister's proposal would amend the tenancy code to give tenants a qualified right to install energy-efficient cooling systems, including fixed AC units, even if the landlord objects. The reform is framed partly as a climate adaptation measure — recognising that heatwaves are now a public health issue — and partly as a modernisation of housing rights. Key details still being debated include: whether tenants would bear the full cost of installation, whether they would be required to remove the unit when leaving, and whether historic or listed buildings would be exempt. Legal experts note that the proposal faces political opposition from landlord associations, meaning it could take time to pass through parliament and may be amended significantly before becoming law.

What This Means Practically for Expat Renters

For now, the law has not changed. If you want to install a fixed AC unit today, you still need your landlord's written consent. Here is what you can do in the meantime. First, check your rental contract (Mietvertrag) — some contracts already include clauses about modifications, and a few progressive landlords include blanket permissions for energy-efficiency improvements. Second, if you want to negotiate consent, frame the request around energy efficiency and modern cooling standards rather than comfort alone; some landlords respond better to this framing. Third, consider a portable unit as a stopgap — they are allowed without consent, though less efficient. Finally, watch for updates on this legislation: if it passes, you would have a legal basis to install AC and your landlord's refusal would be challengeable.

Frequently Asked Questions

Can my landlord legally refuse to let me install air conditioning right now?

Yes. Under current German law, installing a fixed AC unit is classified as a structural modification (bauliche Veränderung), and your landlord has the legal right to refuse consent. This applies even if summers are becoming more extreme. A portable unit that requires no drilling or permanent installation is your only option without consent.

If the law changes, will I have to pay for installation myself?

Based on the current proposal, yes — the cost of installation would remain with the tenant. You would also likely be required to restore the apartment to its original condition when you move out (Rückbaupflicht), unless agreed otherwise in writing with your landlord.

Does this reform affect other home improvements too?

The proposal focuses specifically on cooling systems as a climate adaptation measure. However, related discussions are happening around other modernisation rights, such as installing EV charging points or better insulation. These are separate legislative tracks and would not automatically be covered by the AC reform.

Conclusion and Next Steps

The proposed reform is a promising signal for renters in Germany, but it is not law yet. In the meantime, check your rental contract, explore whether your landlord is open to a written agreement, and use a portable unit if heat is urgent. Keep an eye on Bundestag news for progress on this bill — when it passes, knowing your rights immediately will let you act faster than most tenants. For any dispute with your landlord about home modifications, the Mieterverein (tenants' association) in your city offers low-cost legal advice and is well worth joining.

Source: The Local