The Berlin housing market in 2026
Berlin is the capital of tenants: around 85 percent of Berliners rent their homes — the highest proportion of any major German city. At the same time, rents have risen by an average of 60 percent over the past ten years. In 2026, the average Kaltmiete (base rent) for new lettings is over 15 euros per square metre, and considerably higher in popular districts such as Mitte, Prenzlauer Berg, or Friedrichshain.
Since when has the Mietpreisbremse applied in Berlin?
Berlin is one of the first cities to have introduced the Mietpreisbremse. It has applied across the entire city since 1 June 2015. Berlin's rent-limitation ordinance has been extended several times since then and now applies until the end of 2029.
A brief flashback: from February 2020 to April 2021, Berlin additionally had the so-called Mietendeckel (rent freeze) (MietenWoG Bln), which prescribed absolute rent ceilings. In April 2021, the Federal Constitutional Court declared the law unconstitutional, because the State of Berlin has no legislative competence over tenancy law. Since then, only the federal Mietpreisbremse has applied again.
The Berlin Mietspiegel 2025
The Mietspiegel (rent index) is the central instrument for calculating the permissible rent. Berlin publishes a qualified Mietspiegel every two years. The current 2025 Mietspiegel reflects the local comparative rent and takes into account:
- Building age category: When was the building constructed? (e.g. pre-1918 period building, post-war construction 1950-1964, new build from 2003)
- Residential location: Simple, medium, or good location according to the Berlin residential-location map
- Flat size: The size of the flat in square metres
- Fittings and features: Type of heating, sanitary fittings, flooring, degree of modernisation
The range of the comparative rent runs from around 5.50 euros per square metre for simple period flats to over 17 euros for well-equipped new builds in good locations.
How to calculate the permissible rent in Berlin
Calculating the maximum permissible rent in Berlin follows a clear scheme:
- Step 1: Determine the local comparative rent using the Mietspiegel. For this you need the year of construction, size, location, and fittings of your flat.
- Step 2: Add 10 percent — this gives the maximum rent permitted under the Mietpreisbremse.
- Step 3: Compare the result with your actual Kaltmiete (base rent). If your rent is above it, you are paying too much.
Example: the comparative rent for your 65-square-metre period flat in Prenzlauer Berg is 10.50 euros per square metre. The maximum permissible rent is 11.55 euros (10.50 + 10%). At an actual rent of 14 euros per square metre, you are overpaying by 2.45 euros per square metre — that is 159.25 euros per month or 1,911 euros per year.
The Mietpreisbremse by district
The overpayment varies greatly by district. In popular inner-city districts, the gap between actual and permissible rent is especially large:
- Mitte: Average overpayment approx. 350 euros/month
- Friedrichshain-Kreuzberg: Approx. 300 euros/month
- Prenzlauer Berg (Pankow): Approx. 280 euros/month
- Neukölln: Approx. 220 euros/month
- Charlottenburg-Wilmersdorf: Approx. 250 euros/month
Lessons from the Mietendeckel
Berlin's failed Mietendeckel (rent freeze) shows: tenant protection is a matter of federal law. For tenants, this means the Mietpreisbremse under § 556d BGB is the decisive instrument. Unlike the Mietendeckel, it is anchored in federal law and secured under constitutional law. Use this right consistently.
Conclusion: Berlin tenants should check now
Because of the extremely tight market, many Berlin tenants pay significantly more than allowed. The KlarMiet rent checker uses the current Berlin Mietspiegel and calculates in seconds whether your rent exceeds the permissible limit. The check is free — and could save you hundreds of euros a month.
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