Asset Management Commercial

Asset Management Retail

Asset Management Residential





Company Roots Date back to 1962

The roots of CORPUS SIREO date back to 1962 when one Martin Zimmer committed himself to the residential market in the Cologne region in a free-lance effort. 33 years later, having operated so successfully on the market that Deutsche Bank invested in it in the 1980s, M. Zimmer Gruppe became Corpus Immobiliengruppe in 1995.

The 1990s: Growth after Savings Bank buys in

That same year, a savings bank – today’s Sparkasse KölnBonn – transferred its real estate business to CORPUS SIREO. This business model was copied by two other savings banks later on, as Stadtsparkasse Düsseldorf (2001) and Frankfurter Sparkasse (2004) transferred their real estate activities to CORPUS SIREO. With some of Germany’s largest savings banks as its shareholders, CORPUS SIREO rests on a sound foundation.

2014 Insurance group Swiss Life aquires CORPUS SIREO from savings banks

The internationally operating insurance company Swiss Life acquires CORPUS SIREO, the leading independent real estate asset management service provider in Germany from the savings banks.

Today: Most successful Asset Manager in Germany

With commercial and residential property space worth € 14.4 billion in assets under management in Germany, the Cologne-based asset management firm CORPUS SIREO today employs a staff of around 530 professionals at eleven locations in Germany and Luxembourg. Across Europe, there are approximately 67,4 billion Euros in real estate assets, which are managed by the Swiss Life Asset Managers companies. With its 6 business units operating for both national and international clients, this makes the company Germany’s leading real estate asset management service.

Peerless Track Record

Business since 1995 has been an uninterrupted success story for CORPUS SIREO. Get to know more about the milestones in the company history in the following.


The Stadtsparkasse Köln savings bank and M. Zimmer Gruppe form Corpus Immobiliengruppe (equal-shares interest structure).

Corpus Immobiliengruppe aquires 11,000 residential units from Deutsche Post AG.

The Stadtsparkasse Düsseldorf savings bank becomes a Corpus Immobiliengruppe shareholder (with an ownership structure of three equal shares).

The Corpus Immobiliengruppe acquires the exclusive asset management mandate for the group-owned real estate of Deutsche Telekom AG.

Sireo Real Estate is founded.

The Corpus Immobiliengruppe acquires interests in the Kleinwohnungsbau GmbH housing construction company in Düsseldorf, which owns 4,900 housing units.

The first real estate special fund for institutional investors is placed successfully in a volume of € 525 million.

The Frankfurter Sparkasse savings bank also becomes a Corpus Immobiliengruppe shareholder (with an ownership structure of four equal shares).

The Corpus Immobiliengruppe acquires the mandate for, and co-investment for restructuring, Immeo Wohnen (previously ThyssenKrupp Wohnimmobilien GmbH).

40,000 former ThyssenKrupp apartments are sold to the French company Foncière Développement Logements.

Several prominent asset management mandates and co-investments from international investors and public-sector portfolio holders (Morgan Stanley, Citigroup, State of Baden-Württemberg) are acquired.

Merger of Corpus Immobiliengruppe and Sireo Real Estate to form CORPUS SIREO.

Acquisition of the "Sony Center" complex on Potsdamer Platz in Berlin within the framework of a co-investment with Morgan Stanley and "The John Buck Company;" renewal of the lease with Deutsche Bahn AG.

CORPUS SIREO holds its own on the market during the financial crisis, requiring no capital increase.

The "Sony Center" complex in Berlin is sold to the South Korean public pension fund NPS.

CORPUS SIREO acquires the long-term asset management mandate for the "Neue Deutsche Bank Türme" office scheme in Frankfurt am Main (start of mandate: 01.12.2011).

4,680 apartments in Berlin are sold to municipal housing companies DEGEWO and GESOBAU.

CORPUS SIREO gets the asset management mandate for the so-called "Hawk" portfolio with 22,000 residential properties across Germany awarded by Cerberus.

CORPUS SIREO also acquires the asset management mandate for the RREEF Property Pension Fund with a target volume of € 500 million.

CORPUS SIREO assumes responsibility for asset management business from TREUREAL GmbH, Mannheim. CORPUS SIREO wins the asset management mandate for the "Treveria" portfolio with over 150 properties.

CORPUS SIREO launches a new business line: an asset management company for retail real estate is founded – CORPUS SIREO Asset Management Retail GmbH.

Deutsche Telekom AG, based in Bonn, renewed its exclusive asset management mandate to CORPUS SIREO Asset Management Commercial GmbH to handle more than 14,000 group properties as it extended the contract through 2022. CORPUS SIREO has been responsible for managing the properties of the German telecommunication company since 2001.

German Asset & Wealth Management acquires the „Merkur“-portfolio with 3,604 Apartments, 154 commercial units and a total of around 260,000 sqm. CORPUS SIREO is mandated with a 10-year Asset Management appointment for the sold portfolio. Swiss Life buys CORPUS SIREO retroactive per 1 January 2014. Stated goal of the acquisition is growth in Asset Management Services and fund business from one of the largest European core markets.

Swiss Life buys CORPUS SIREO retroactive per 1 January 2014. Stated goal of the acquisition is growth in Asset Management Services business from one of the largest european core markets.

Swiss Life Asset Managers and CORPUS SIREO launch their first joint real estate fund. Set up under Luxemburg law the fund invests in German residential, office and retail core-properties. The „Swiss Life REF ( LUX ) German Core Real Estate Fund SCS , SICAV-FIS targets a GAV of EUR 1 billion.

CORPUS SIREO’s fund business picks up speed. A total of six new and upcoming funds focus on investments into healthcare, retail, core-office and corporate real estate.

At the end of the year CORPUS SIREO acquires the commercial portfolio „Stella“ from DEKA Investments on behalf of Swiss Life Asset Managers. The 26 German office properties are incorporated into existing and new fund schemes.

Swiss Life Asset Manager successfully opens the German Core Real Estate Fund „Swiss Life REF ( LUX ) German Core Real Estate Fund SCS , SICAV-FIS“ for third-party investors. By the end of the inception phase, the fund raised EUR 150 million in capital commitments from Suisse institutional investors. In the medium term, the fund is expected to grow to a size of EUR 1 billion.


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