mietminderung

Rent reduction for mice and rats

6 rulings on this topic – with reduction rate, case number and link to the decision.

Updated: October 2026 · 119 court rulings

Mice and rats in a city apartment are a defect – for reasons of hygiene and health alone. In rural areas courts expect a little more tolerance: the odd mouse counts as normal there, a real plague does not.

Rats in the courtyard can justify a reduction too. Important: allow the pest control appointments – if you do not let the exterminator in, you lose the right to reduce for that period.

Calculate reduction →

6 rulings found

Enforce your right to rent reduction

Create a free defect notice with a rent reduction demand — backed by these court rulings.

Reduce rent
DefectReductionDescription
100 %Damp walls and ceilings, rats, mold; apartment uninhabitable
100 %Mouse plague: up to 10 mice in the living room at once
10 %Mice and cockroaches
10 %Rats in the courtyard behind the apartment
10 %Mouse plague in a rural area (15 mice caught every day)
10 %Mice in the apartment, droppings in dishes and pots