Berlin · WBS · Mietspiegel · Mietpreisbremse
The part of finding a Berlin flat that isn't the listing.
You can already find listings. What you cannot find out is whether you are allowed to rent the flat, whether the rent is legal, and how to apply before two hundred other people do. That is this.
10,00 € once for the application dossier, including 24/7 Berlin concierge access over WhatsApp. The checks themselves are free.
01
Is this rent legal?
We hold the Mietspiegel Wohnlage for every address in Berlin, so we can pick the right row — and tell you its number, which is what a Mieterverein or a court will look up. The cap is reported as the range the law actually makes it, not a single number that would overstate the claim.
02
Do you qualify for a WBS?
It gates about half the affordable stock, it is free, and it takes weeks to get while flats take minutes. We compute it over the current WoFG §9 limits and show every step, so you can check the arithmetic yourself.
03
Apply in four minutes
A complete Mieterselbstauskunft plus the document checklist Berlin landlords actually ask for, as one shareable link. Built once, calmly; sent in seconds on the day it matters.
04
Which co-op to join
Genossenschaft flats go to members off a waiting list, and most publish no vacancies at all. So the useful question is not "what is free" but "which one is worth joining now, for a flat in two years".
What it is built on
Public-domain city data, the Senate's own rent table and the statute book — not a scraped listings feed. Every figure carries the date it was last verified, and the answer is "we cannot tell" when that is the truth.
Why there is no listings feed
We checked, and almost nobody allows it.
ImmoScout, Immowelt, WG-Gesucht and Kleinanzeigen prohibit scraping. So, it turns
out, do all seven municipal housing companies and their joint portal — permissive
robots.txt, and terms that forbid automated querying and building a
database. Of 63 Berlin housing co-ops, 47 allow it and not one publishes a live
priced vacancy, because co-op flats go to members off a waiting list.
So you bring the listing you already found, and we do the part nobody else does. That is a better product anyway: no treadmill, no legal exposure, and a verdict built on data that cannot be taken away.
Honest about the limits
- This is information, not legal advice. For a dispute, a Mieterverein membership costs less than one month of a typical overcharge and they will write the letter.
- Only the Wohnungsamt issues a WBS, and it assesses the documents you submit. Our calculation is unofficial — and shows its working so you can check it.
- Where a flat's Vergleichsmiete sits inside the Mietspiegel span depends on its features. We do not score those yet, so we say "above the span" rather than "illegal" unless the rent exceeds the top of the span plus 10 %.