© Barkow Leibinger

Office Building Bertha Berlin // Barkow Leibinger

Berlin, Germany

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Text description provided by the architects.

The nine-story office building on Bertha-Benz-Straße was completed as the fourth and final component of the “Lehrter Stadtquartier”, master planned by O.M. Ungers in 1994, directly southwest of Berlin’s main railway station. The design corresponds to the existing three buildings of the complex, for which clear directives were given for the volumetric form, height and materiality.

© Barkow Leibinger

© Barkow Leibinger

© Barkow Leibinger

© Barkow Leibinger

Following these guidelines, the building has a “static” and planer façade facing the city, while the two façades facing the center of the quadrant are articulated by folded surfaces. Additionally, it is segmented into a three-part program of base, body, and penthouse.

© Barkow Leibinger

© Barkow Leibinger

© Barkow Leibinger

© Barkow Leibinger

The generous floor height of the first two levels offers space for two lobbies, several retail spaces, while the upper seven floors provide office rooms and a terrace on the ninth floor. Above the transparent pedestal, narrow vertical fins of “Sellenberger Muschelkalk”, a light-colored shell limestone rooted in the Berlin building tradition, form a curtain wall of veil-like lightness: varying in depth, the fins stagger over 3 divisions per floor height, a pattern that forms a diagonal incremental gradient like a fabric cladding that lightens the heaviness of the overall building volume.TeamKlaus Reintjes (Project Architect), Ayax Abreu, Marian Beschoner, Ulrich Fuchs, Cynthia Grieshofer, Ina Reinecke, Ruwen Rimpau, Anna Saeger, Konrad Scholz, Morihide Seki, Antje Steckhan, Ludwig Uphues, Blake VillwockSustainability standardDGNB Gold CertificationClient | InvestorBertha Berlin GmbH & Co.

© Barkow Leibinger

© Barkow Leibinger

© Barkow Leibinger

© Barkow Leibinger

KG, a joint venture between Hamburg’s Becken Development GmbH and the HanseMerkur insurance groupGeneral ContractorW. Markgraf GmbH & Co KG, Berlin, GermanyConstruction Management Witte Projektmanagement GmbH, Berlin, GermanyStructural EngineerRSP Remmel+Sattler Ingenieurgesellschaft mbH, Berlin, GermanyLandscape ArchitectCapatti Staubach, Berlin, GermanyMechanical Engineering, Energy Performance, HVAC, Electrical EngineeringReese Ingenieure GmbH & Co. KG, Hamburg, GermanyBuilding PhysicsWerner Genest und Partner Ingenieurgesellschaft mbH, Berlin, GermanyFaçade EngineeringPriedemann Fassadenberatung GmbH, Großbeeren, Germany Lighting DesignBartenbach, Mainz, GermanyPhotosStefan Müller, BerlinCorinne Rose, Berlin.

© Barkow Leibinger

© Barkow Leibinger

© Barkow Leibinger

© Barkow Leibinger

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