Two similar office buildings. LEO & ALEX by Tchoban Voss Architekten

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Project team
Associated partner: Martin Krebes.
Project leader: Jan Frechen.
Team: Juan Durán Calero, Merle Kleinschumacher, Mareike Pagenstecher.
Execution service stage 5: Daelken Ingenieurgesellschaft mbH, Georgsmarienhuette.
Project management: Turner & Townsend, Berlin.
Landscaping: KUULA Kusserow und Uphaus Landschaftsarchitekten GbR, Berlin. Structural engineering: Sweco GmbH, Berlin.
Building technology: Sweco GmbH, Frankfurt am Main.
Fire protection: hhpberlin Ingenieure für Brandschutz GmbH, Berlin.
Quantum AG, Hamburg.
LEO: 18,193 sqm (with underground 24,422 sqm).
ALEX: 19,155 sqm (with underground 24,689 sqm).
LEO: Q4 2021.
ALEX: Q2 2022.
LEO, Bornitzstrasse 49-51, 10365 Berlin. Germany.
ALEX, Bornitzstrasse 67-71, 10365 Berlin. Germany.

Sergei Tchoban

Sergei Tchoban is an internationally active German architect. He is managing partner of TCHOBAN VOSS Architekten and head of the Berlin office. Tchoban studied architecture at the Academy of Arts in Saint Petersburg. He has lived in Germany since 1991 and has held German citizenship since 1995. After starting at NPS Nietz - Prasch - Sigl in Hamburg in 1992, Tchoban became managing partner of the architectural office now known as TCHOBAN VOSS Architekten in 1995. In 2009, the Tchoban Foundation was established, which is based in the Museum for Architectural Drawing built for this purpose in 2013.

Numerous residential and office buildings, hotels, cultural buildings and revitalisation projects have been created according to his designs and plans, including EDGE Suedkreuz Berlin, Germany's largest office ensemble in sustainable timber hybrid construction, the Berlin Apple store Rosenthaler Strasse, as well as the revitalisation of the Ernst-Reuter-Platz 6 office building and numerous buildings as part of the master planning for Berlin's Osthafen.

In 2020, Tchoban was president of the American Society of Architectural Illustrators ASAI. His architectural drawings have been exhibited in numerous museums and galleries worldwide and are in the collections of international museums, archives as well as in private collections. In 2018, Sergei Tchoban was awarded the European Prize for Architecture by the Chicago Athenaeum Museum of Architecture and Design for his lifework.

Sergei Tchoban is member of the Bund Deutscher Architektinnen und Architekten BDA (Association of German Architects) and the chambers of architects in Hamburg and Berlin.



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