With the rent reduction of rent control (Mietpreisbremse).
After reading an article about CONNY, I have decided to double check my rent as I was sure I pay definitely more as I should. After I have contacted CONNY, a team of lawyers-turned-activists working to fight the incredible rent increases, I have mandated them to contact my Hausverwaltung, and within a week my rent has been reduced based on the Mietspiegel. So now in Moabit instead of 550 euros Kaltmiete, I pay 190.68 euros less per month for a year already. In my case they have reduced to the average local rent + 10 %. Based on my understanding + 10 % is still within the legal limit. So in my case 7.48 euros/m² is the average local rent, and now with the new conditions I will pay 8.22€/m², which is exactly 10 % higher. Previously I paid 12.59 euros/m²! My rent contract is unlimited and not from a private person.
I was extremely lucky I believe. Once CONNY sent an official letter to my Hausverwaltung, they have responded positively in the next day and from the next month I have already started to pay the new decreased rent amount.
I save 190.68 euros per month, new Kaltmiete is 349.32 euros instead of 550 euros. I was really happy with the cooperation and the service of the CONNY. They speak English also, and they were also ready to help me with any of my questions. If you do not speak proper German, I can recommend you to ask some help from any of your German neighbours, when you start to fill-in the form on their website. This form help you to get a proper calculation to be able to see, what would be the legally required Kaltmiete you suppose to pay.
The cooperation was quick and effective, I really liked the function in the chat to ask for a recall. Colleagues from CONNY were really helpful and always ready to clarify all my questions during the whole procedure. I can definetely recommend the team of CONNY and wish you a successful cooperation. :)