16/07/2026
The "Cheap" Property Trap: Why You Must Check the Rental Contract and the Market Online
Buying a tenanted apartment (vermietete Wohnung) in Germany is often 15% to 30% cheaper than buying a vacant one. But before you jump on a "deal," you must cross-reference the existing rental contract with the online rental market.
If you don't, you might buy a property you can't move into, or one that legally cannot make a profit.
1. The Rental Contract: "Kauf bricht nicht Miete"
In Germany, purchase does not break rent. You inherit the exact contract and the exact tenant. If the contract has a termination waiver (Kündigungsausschluss) or if your city has a strict local eviction blocking period (Sperrfrist) of up to 10 years, you cannot move in for "personal use" (Eigenbedarf).
2. The Online Market: Illusion vs. Rent Control
Don't look at active listings on ImmoScout24 and assume you can instantly raise the rent to match those prices. Existing rents are heavily protected. Under strict German rent caps (Mietpreisbremse and Kappungsgrenze), you can usually only raise the rent by 15% to 20% over a 3-year period, up to the local rent index (Mietspiegel)—no matter how high online market averages are.
💡 The Takeaway: The Exposé is marketing. The rental contract and the local Mietspiegel are the legal reality. Always review both before you sign.
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