Case Study

How Landlords Hide Asbestos

The playbook is always the same. Know. Conceal. Blame the tenant. What makes Berlin different is that every step is documented — with parliamentary records, court files, and internal company reports spanning a quarter-century.

The Playbook

Five Steps of an Asbestos Cover-Up

These steps are not unique to Berlin. They appear in asbestos cases from Australia to Italy to the United States. What is unique is that in Berlin, every step can be traced through official documents.

1. Know — But Don’t Tell

The landlord knows asbestos is present. Internal records document it. Tenants are not informed. The justification is always a variation of: “As long as the material is intact, there is no risk.”

Berlin, 2000

Frank Bielka, State Secretary at the Berlin Senate (and, until 2002, simultaneously Chairman of degewo’s Supervisory Board), responds to a parliamentary question: “Since there is no risk from proper use of the landlord’s property, no tenant information is necessary.” At the time: 14,400 apartments affected. Not a single tenant was informed.

Source — Parliamentary Question 14/219, Berlin Parliament, April 1, 2000

The Global Pattern

The same logic appears in residential asbestos cases worldwide: UK council housing (1.5 million homes), Australia’s “Mr Fluffy” insulation scandal (1,023 homes demolished), New York City public housing (400,000+ residents affected). The argument is always economic: informing tenants creates legal liability. Not informing them is free — until someone gets sick.

2. Approve Renovations in Asbestos Apartments

Tenants drill, sand, remove floors. Standard renovations that every renter does. Except these materials contain asbestos. The landlord approved the work — in writing — in apartments it knew to be contaminated.

Berlin, 2012

degewo issues a written renovation permit: “Dispose of construction debris yourself.” The tenant removes asbestos-containing Floor-Flex tiles and mills asbestos-containing adhesive from the screed. No respiratory protection. No warning. The apartment is sealed for weeks afterward.

Source — degewo Renovation Permit (Anlage B1), dated February 4, 2012

3. Blame the Tenant

When the tenant discovers the contamination and takes legal action, the landlord reverses the roles. The tenant is accused of having caused the problem — by renovating. The fact that the landlord approved the renovation is reframed as the tenant acting improperly.

Berlin, 2019

degewo deploys a renowned criminal defense and crisis law firm (Eisenberg, König, Schork & Kempgens). For a single tenancy dispute. Paid with public money. The law firm argues the tenant is “playing the asbestos card” and files counter-threats: recording violations (§201 StGB), property damage (§303 StGB), and counter-claims.

Source — EKSK legal brief, District Court Wedding (a Berlin local court, named for the Wedding district in Berlin's Mitte borough), Az. 14 C 250/19. Full analysis →

The Technique: DARVO

Deny, Attack, Reverse Victim and Offender. A well-documented pattern in institutional abuse cases. The institution denies responsibility, attacks the person raising the alarm, and reverses the roles so the victim appears to be the aggressor. In asbestos cases, this translates to: deny risk → attack tenant’s credibility → blame tenant for the exposure the landlord caused.

4. Exhaust the Tenant Legally

The tenant has limited resources. The landlord has unlimited legal budgets (often taxpayer-funded). The strategy is attrition: deny legal aid, file counter-claims, extend proceedings until the tenant can no longer afford to fight.

Berlin, 2019–2022

The tenant is denied legal aid (Prozesskostenhilfe). The reasoning: not enough evidence of harm — but evidence requires a lawsuit, and a lawsuit requires legal aid. A circular trap. The criminal complaint is dropped by the prosecutor despite police findings. Not a single suspect is questioned.

Source — District Court Wedding (Az. 14 C 250/19); Berlin Prosecutor’s Office (Az. 281 UJs 699/21). Full criminal case analysis →

5. Remediate Quietly — Control the Narrative

Eventually, remediation happens — but on the landlord’s terms. Often through a subsidiary (keeping it in-house), without independent quality control, and framed as responsible corporate behavior rather than long-overdue compliance.

Berlin, 2022

degewo establishes degewo Technische Dienste GmbH (dTD) — a wholly owned subsidiary for asbestos remediation of its own apartments. The polluter becomes the remediator. A profit transfer agreement ensures all revenue flows back to degewo. No documented independent external quality control.

Source — Berlin Commercial Register, HRB 45731 B; LAGetSi certification 2022

The Scale

Why Disclosure Doesn’t Happen

The Economic Logic

Every informed tenant is a potential rent reduction claim. Under German law, asbestos contamination that renders an apartment uninhabitable entitles tenants to full compensation for substitute housing (District Court Eutin, June 2018). Even the conservative Berlin benchmark of 20% reduction (LG Berlin, Az. 66 S 212/18), applied to 23,883 apartments, creates enormous financial exposure. The cost of silence is zero. The cost of transparency is existential.

Sources — Drs. 19/25 368 (23,883 apartments incl. suspected); LG Berlin 66 S 212/18 (20% reduction); AG Eutin, June 2018 (apartment uninhabitable — full compensation for substitute housing)

Berlin in Numbers (as of December 31, 2025)

degewo: 23,883 (incl. suspected) · Gewobag: 5,639 · HOWOGE: 6,571 · Stadt und Land: 2,789 · WBM: 2,266 · berlinovo: 2,610 apartments under asbestos suspicion. GESOBAU estimates 15,089 (based on building age) — previously reported zero. Total across all state-owned companies: an estimated 58,847 apartments. Berlin-wide (including private housing): estimated up to 500,000.

Source — Written Parliamentary Question, Drs. 19/25 368 (December 2025)

Global Context

The Same Pattern, Everywhere

United Kingdom

Council Housing — 1.5 million homes

Asbestos in UK social housing affects an estimated 1.5 million homes. Local authorities have been repeatedly criticized for inadequate disclosure to tenants. The pattern mirrors Berlin: known contamination, no systematic tenant information, remediation only when renovation forces it. In 2019, the UK Asbestos Victims Support Group called council housing asbestos “a ticking time bomb.”

Canberra, Australia

“Mr Fluffy” — 1,023 homes demolished

Between the 1960s and 1970s, loose-fill asbestos insulation was pumped into over 1,000 residential homes. The government knew by 1968. Homeowners were not systematically informed for decades. In 2014, the ACT government launched a A$1 billion buyback-and-demolition program. Entire neighborhoods were razed. Residents had lived in contaminated homes for up to 50 years without knowing.

New York City, USA

NYCHA — 400,000+ residents

The New York City Housing Authority (NYCHA) systematically failed to disclose asbestos and lead paint contamination to 400,000+ residents of public housing. A 2018 federal investigation found that NYCHA had falsified inspection reports for years. The authority entered a federal consent decree and was placed under a federal monitor. The pattern: a public landlord conceals known hazards from its own tenants.

France

Social Housing (HLM) — ongoing

France banned asbestos in 1997 after the Jussieu university campus scandal. But in HLM social housing, asbestos-containing materials remain in millions of apartments. Tenant advocacy groups like ANDEVA have documented cases where social landlords failed to inform tenants before renovations — the same pattern as Berlin. France’s 2024 Amiante report confirmed that residential exposure remains a “major public health concern.”

What connects these cases is not industrial-scale asbestos exposure — it is the decision to conceal known residential contamination from the people living in it. In every case, a public or institutional landlord had the information, calculated the cost of disclosure, and chose silence. The Berlin case is unusual only in the completeness of its documentation.

Documentation

What Makes Berlin Different

Most asbestos cover-ups are reconstructed after the fact. In Berlin, the evidence was generated in real time — by the institutions themselves.

Parliamentary Record

The Berlin Parliament asked about asbestos in state-owned housing in 2000. The answer is on record: 14,400 apartments, no tenant information. A quarter-century later, the policy has not changed.

Company Reports

degewo’s own PwC-audited Group Management Report 2017 identifies asbestos as a “material business risk.” Investors were informed. Tenants were not.

Police Files

The LKA 336 (environmental crimes unit) investigated and documented a “worst-case scenario.” The prosecutor dropped the case six weeks later. Not a single suspect was questioned.

Policy

EU Asbestos Policy & Berlin’s Reality

EU Renovation Wave & Asbestos

The EU’s Renovation Wave strategy aims to renovate 35 million buildings by 2030 for energy efficiency. The European Parliament has repeatedly warned that renovations will disturb asbestos in pre-1990 buildings. In September 2023, the EU adopted a revised Asbestos at Work Directive, lowering the occupational exposure limit. Yet enforcement at the national level remains inconsistent — Berlin is a case in point.

Germany’s Hazardous Substances Ordinance (GefStoffV), December 2024

The revised ordinance requires construction companies to investigate for asbestos before any building work. But it does not require building owners to proactively check whether their buildings contain asbestos. The civil law obligation to inform tenants (LG Berlin, 18 S 140/16) remains separate and is rarely enforced. The result: renovations may be safer, but tenants living with intact asbestos materials still receive no information.

The evidence is public. The pattern is documented.

Based on parliamentary records, court files, and official company documents.

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