Exterior view of the Bundestag extension designed by Christoph Ingenhoven, sleek glass facade and co

The modern extension of the Bundestag, designed by Christoph Ingenhoven, featuring a sleek glass facade and contemporary architectural lines that complement the historic Reichstag building.

Exterior view of the Bundestag extension designed by Christoph Ingenhoven, sleek glass facade and co

The modern extension of the Bundestag, designed by Christoph Ingenhoven, featuring a sleek glass facade and contemporary architectural lines that complement the historic Reichstag building.

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PROJECTS / EXTENSION OF THE BUNDESTAG

Competition Luisenblock Ost, Berlin - Honoured Proposal

The architecture offers insights into the essence of democracy, mirroring political activities and serving as a city's showcase, visually linking the interior and exterior.

The building serves as a mediating structure between the strict boundaries of Berlin's Federal Ribbon Ensemble and the historical axis defined by the listed Kesselhaus and the Workshop Building. The intentional deviation, a geometric interruption, creates a natural conclusion.

In its spatial design, the structure bridges the gap between the varied block composition and the overarching Federal Ribbon. Transparency turns the building into a cohesive and inclusive part of the city, accessible to all residents and visitors.

Parliamentary chambers in the Bundestag extension designed by Christoph Ingenhoven, functional and flexible environment

The design is envisioned in the south as a mediating large form between the emerging axes of the roofline of the Federal Ribbon and the historical city axis defined by the Kesselhaus and Workshop Building. This large form, as a deliberate break, marks a geometrically natural end to the Federal Ribbon. The front edge of the roof ring aligns with the roof edge of the MELH. While there are material similarities with the concrete of the MELH, it is reinterpreted in a new form.

In its geometry, the design bridges the gap between the heterogeneous block structure and the large form of the Federal Ribbon. The transparency makes the building an integral part of the city, opening it up to the citizens.

Sustainable design in the Bundestag extension by Christoph Ingenhoven, energy-efficient systems and eco-friendly materials

Double Facade

The double facade encircling the building naturally ventilates it. The 60 cm gap between the primary and secondary façade serves as a maintenance walkway, eliminating the need for a building maintenance unit. The splash guard can be cleaned from the outside via a walkway inside the four movable shading modules. Only the yellow-marked areas of the workspaces and meeting rooms are mechanically ventilated. The zone in between acts as a thermal buffer, significantly reducing energy consumption. Section B/C, with its numerous individual offices, is mechanically ventilated, and each office has individually operable windows.