€397 less rent per month – get free check
Check your rent in 2 minutes without obligation and find out immediately how much you could save.
Over 15,000 satisfied customers trust Conny
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Are you paying more than you should?
High rents are normal – but not always legal. Many contracts are flawed or simply illegal. This unknowingly costs tenants thousands of euros every year.
Rent indexes, exceptions, modernizations – who can understand all that? Checking your own rent seems almost impossible without expert knowledge.
Fear of conflict with the landlord. Many don't risk an argument and therefore accept the high rent.
We find out for you. Without stress.
End the uncertainty. Conny is your partner in rental law. We handle the entire process for you: Our experts and our technology check your contract, find out if your rent is too high, and enforce your claims.
- Expert reviewed
Our rental law experts know every trick and every legal detail. - No cost risk
We only receive a commission in case of success. Only if you actually save rent does our service cost. If something goes wrong, you pay nothing. - Simple online process
No paperwork, no lawyer appointments. Everything conveniently from home.
In 3 simple steps to rent reduction
Provide apartment information
Answer a few questions about your apartment and receive your savings potential by email.
Commission Conny
Commission us and we'll take care of enforcing your right to fair rent.
Pay fair rent
Enjoy fair and lower rent. Only on success do you pay a commission to us.
The Conny community saves millions every month
For 8 years, Conny has been enforcing lower rents in Berlin. This saves Conny users millions of euros every month. Become part of the community and save every month on rent. Simple, completely legal and convenient.
Why Conny?
We are experienced IT and legal experts who have already successfully enforced the German Rent Control for thousands of tenants.
Convenient & Simple
We take care of the entire process with your landlord. You can't enforce your rights more easily.
No cost risk
Unlike conventional lawyers, we only get a commission when we are successful for you. If we have no success, you have no costs.
High success rate
Due to our thousands of successfully conducted processes, the experience of all cases flows into your case.
No cost risk
Our promise: 100% fair & transparent
How our fee works
- Only on success do you pay a commission to Conny.
- Repayments (including overpaid deposit) finance our fee.
- No success = €0 costs for you.
Example: Your rent drops by €250. The repayment that your landlord may have to make, we keep as our fee. You never pay out of your own pocket.
With Conny you take no cost risk. Our compensation is purely success-based – you only pay if we can reduce your rent. We receive a success fee that is financed from the repayments from your landlord. We bear all litigation costs.
- No hidden costs
- Only pay if you really save
- We cover all lawyer and court costs
Testimonials from our Conny customers
Frequently Asked Questions
Yes – if your rental contract started after June 1, 2015 and your rent is more than 10% above the (low) comparable rent. New buildings and comprehensively modernized apartments are excluded. However, the hurdles for these exceptions are very high. Our legal experts check this for you – free & without obligation.
The German Rent Control is a law "to curb rent increases in tight housing markets" (§ 556d BGB). It was introduced nationwide in 2015 and now applies in most federal states. The German Rent Control applies in many major cities such as Berlin, Hamburg, Munich or Frankfurt and allows tenants to reduce their rent if it is more than ten percent above the local comparable rent.
Your landlord covers the costs! Here's how it works: When we achieve a rent reduction for you, you benefit on average from €397 more per month. Claims from the time before the rent reduction are paid out to us by your landlord. This also includes the part of the deposit that you paid too much due to your old, expensive rent. We finance our team of legal experts with these repayments, who enforce fair rent for you. Your advantage: we don't send you a bill and cover our commission completely from these repayment claims. If we have no success, everything stays the same for you and Conny goes empty.
Yes. If an out-of-court settlement cannot be reached and we consider the court enforcement promising, our partner lawyers will also file a lawsuit in court. The litigation costs are covered by Conny. The commission for Conny only falls due in case of success. If we are not successful, you have no costs; so you have no cost risk.
Landlords also know the German Rent Control and know that a higher rent is not lawful. Accordingly, the vast majority react calmly and are willing to find an amicable settlement for both sides. Many landlords already know Conny and are aware that we communicate professionally and legally sound as recognized rental law experts. A termination of the rental contract as a reaction to asserting your rights is inadmissible.