Crisis

The Collapse of Adler Group


“Adler’s 2020 sale of Kurfürstendamm 231 to Aggregate Holdings was a sham transaction. The property was sold at a €100 million discount to fair value, effectively transferring wealth from Adler’s shareholders to Caner’s private company.”

— Viceroy Research


Figure above is the official visualisation used as Project FURST marketing material. Taken from PROJECT FURST.



In October 2021, short-seller Viceroy Research published a report accusing Adler Group of systemic fraud. Viceroy alleged Adler had inflated asset values by €2.5 billion through circular transactions with Caner-linked shell companies, including overstating the worth of renovation projects and fabricating rental income. The report also highlighted Adler’s reliance on Aggregate Holdings as both a shareholder and a counterparty, creating a “black box” of undisclosed liabilities.

The fallout was immediate: Adler’s stock plummeted 70%, its bonds crashed to junk status, and regulators (BaFin) launched investigations. By 2022, Adler faced a liquidity crunch, unable to refinance maturing debts. Creditors, including BlackRock and Pimco, demanded asset sales, forcing Adler to offload properties at fire-sale prices. Caner resigned from Adler’s board in 2021 but retained influence via Aggregate’s stake.

Adler’s collapse had dire consequences for Project FURST:

  • Funding Freeze: Aggregate had relied on Adler’s financial ecosystem to secure loans for the project. With Adler’s credit rating obliterated, lenders froze credit lines, leaving Aggregate unable to draw €450 million in pre-approved construction financing.
  • Legal Challenges: Adler’s creditors sued to reverse the Kurfürstendamm 231 sale, alleging it was a “fraudulent transfer” designed to shield assets from creditors. A Frankfurt court temporarily froze Aggregate’s ownership in 2022, halting all construction permits.
  • Design Compromises: With funding uncertain, Chipperfield’s team was pressured to reduce costs. Early plans for hand-carved stone facades and underground cultural spaces were shelved in favor of prefabricated concrete and smaller retail footprints.

By mid-2023, the site remained a fenced-off pit, emblematic of Berlin’s broader crisis of stalled developments—a phenomenon urbanists dubbed “ruins of capital.”

To salvage Project FURST, Aggregate embarked on a high-stakes refinancing campaign:

  • Debt Extensions: In 2023, Aggregate renegotiated €1.4 billion in debt, extending maturities to 2026 and pledging additional collateral, including its Lisbon luxury portfolio.
  • Asset Sales: Aggregate sold non-core assets, including Berlin’s Upper West Mall (€210 million) and stakes in Portuguese hotels, raising €500 million earmarked for Kudamm 231.
  • Alternative Financing: The firm issued convertible bonds tied to Project FURST’s future revenue, marketed to hedge funds speculating on Berlin’s post-pandemic real estate rebound.

The financial turmoil forced architectural compromises:

  • Phased Construction: The project was split into phases: a retail podium (2025) and office tower (2027), delaying public spaces indefinitely.
  • Material Substitutions: Chipperfield’s original stone cladding was replaced with textured concrete panels, citing cost cuts. Critics argued this undermined the design’s contextual sensitivity, reducing it to a “poor cousin” of Chipperfield’s earlier Museum Island projects.
  • Community Backlash: Housing activists protested the project, arguing that luxury developments like FURST exacerbate Berlin’s affordability crisis.