Rent control in berlin goes beyond the mietpreisbrmese - most significant is that you can't increase the rent once you get a tenant beyond the rate of inflation and that you (almost) can't kick out a tenant.
I have friends in London whose rent (in the same apartment) went up 10% every year for years until they had to leave the apartment. This is not happening in Berlin.
I have friends in London whose rent (in the same apartment) went up 10% every year for years until they had to leave the apartment. This is not happening in Berlin.