Background
The invisible hazard in millions of apartments worldwide — and why landlords have every incentive to say nothing.
Asbestos is a group of naturally occurring silicate minerals with a fibrous structure. The fibers are extremely thin — up to 500 times thinner than a human hair — heat-resistant, acid-resistant, and virtually indestructible in the human body.
Because of these properties, asbestos was used massively in the construction industry from the 1950s to the 1980s: floor tiles, wall panels, pipe insulation, roof coverings, adhesives, window putty. Cheap, versatile, fireproof. Peak consumption in Europe occurred in the 1970s. Germany banned asbestos in 1993, the EU in 1999. But the material remains in millions of buildings that were never remediated.
When asbestos-containing materials are damaged, worked on, or degrade with age, they release microscopically small fibers into the air. Once inhaled, these fibers cannot be broken down by the body. They remain forever.
The consequences often appear 20 to 40 years after exposure:
The World Health Organization and EU Directive 1999/77/EC are clear: there is no safe threshold for asbestos exposure. Every single fiber can potentially cause cancer.
Any building constructed or renovated between the 1960s and early 1990s may contain asbestos. This applies globally — in Berlin, London, New York, Sydney, Paris. Typical locations:
Facts vs. Institutional Arguments
These arguments are used by housing companies and public landlords worldwide to justify non-disclosure. Every one of them is misleading.
EU Directive 1999/77/EC: there is no safe threshold. “Intact” is a snapshot — materials age, are stressed by daily use, and release fibers over time. Who defines “intact”? The landlord who has a financial interest in not remediating.
There is no scientifically recognized “safe” limit for asbestos. Occupational threshold values (like 1,000 fibers/m³) apply to time-limited workplace exposure — not to living in an apartment 24 hours a day, seven days a week. The WHO is unequivocal: every inhaled fiber increases cancer risk.
This means: tenants who have lived in the apartment for years continue living with asbestos until they leave. Remediation at tenant change is not health protection — it is cost optimization. The apartment is vacant anyway, so remediation causes no lost rent.
This is the argument used by degewo in Berlin since 2000 — and it is the argument used by public landlords in the UK, Australia, the US, and France. The logic: disclosure creates legal liability. Not disclosing is free. The calculation is always economic, never medical.
In Berlin, degewo discloses asbestos as a “material business risk” in its PwC-audited management report (2017). Deutsche Wohnen’s stock prospectus (2011) informs investors about tenants’ rent reduction rights in asbestos cases. The same information given to shareholders is withheld from the families living in the apartments. This pattern is not unique to Berlin.
Practical guide
1. Do not disturb the material. No drilling, sanding, breaking, or removing. Any mechanical action releases fibers. Do not vacuum suspected floors — standard vacuums do not filter asbestos fibers.
2. Contact your landlord in writing. Request written confirmation of whether asbestos-containing materials are installed in your apartment. Keep copies of all correspondence.
3. Have a sample analyzed. If you take a sample yourself: dampen the material, break off a small piece, seal it in a zip bag. Wear an FFP3/P100 mask. Send the sample to an accredited laboratory. Cost: typically 30–80 euros / 30–80 USD.
4. Document everything. Photograph suspect materials with date and location. This documentation may be critical for legal action, rent reduction claims, or regulatory complaints later.
5. Know your rights. In most jurisdictions, landlords have a duty to disclose known hazards. If your landlord knew about asbestos and did not inform you, you may be entitled to remediation, rent reduction, or damages. Seek legal advice in your jurisdiction.
More questions? See our FAQ.
The same materials. The same arguments. The same silence. The Berlin case is documented in detail — but the pattern repeats everywhere.