TRION Office and Commercial Building, Berlin, DE

Representative office architecture.
The TRION at Leipziger Platz in Berlin.

With the TRION office and commercial building, the historic city figure of the octagon at Leipziger Platz in Berlin is complete for the first time in over 70 years. With its elegant façade, the building blends harmoniously into the urban ensemble. The multi-functional triple glazing of the façade with the GEWE-therm® safe thermal insulation glass from SCHOLLGLAS ensures optimum thermal insulation and maximum safety.

Like a keystone, the TRION office and commercial building, completed in 2022, completes the octagon on Leipziger Platz in Berlin, which had been rebuilt in several steps since reunification in 1989. The Berlin architectural firm léonwohlhage won the competition in 2016 and fitted the ambitious project into the striking ensemble with a great sense of the urban context. The prominent location had a significant influence on the design concept, as the six- to ten-storey TRION forms both the western end of Leipziger Platz and a wing of Potsdamer Platz. The well-proportioned building fulfils this task with restrained elegance.

Project data

Exclusive offices with a view over the city

After more than three years of construction, the six- to ten-storey office and commercial building was finally opened in autumn 2022. This was due, among other things, to the difficult foundation conditions due to the S-Bahn and U-Bahn trains intersecting here underground. Above an underground car park and the ground floor with catering and retail space, nine exclusive office floors with more than 8,000 square metres of office space rise in TRION. The floor plan concept with a centrally positioned circulation core allows open office landscapes or individual offices in the three-sided building – flexible use and city views included.

Concise façade elegance

With its cubature and uniform façade grid, the TRION responds to Berlin’s eaves height, the neighboring buildings and Potsdamer Platz. Together with the front building on the other side of Leipziger Straße, the two tower buildings will create a gateway to Leipziger Platz. The façade made of large-format prefabricated concrete elements was designed by the architects with different surfaces. Aggregates and surface treatment determine the look: the vertical prefabricated elements are sanded smoothly with clearly recognizable inclusions, the horizontal cornice bands have been acidified twice and show a fine, homogeneous structure.

Ecological and sustainability aspects were taken into account in the TRION both in the selection of building materials and in the construction method and sustainable building technology. The building receives LEED standard certifications (platinum, LEED GD+B: core and building envelope).

Der wohlproportionierte Baukörper des TRION nimmt das gleichmäßige Fassadenraster auf, das für alle Bauten des Leipziger Platzes prägend ist. Foto: Andrew Alberts (Schollglas)

Multifunctional solar control glass

The façade structure is classic. Above the two base floors with large fixed glazing in the frame rises a clearly gridded perforated façade with almost square window openings. For the glazing, the planners chose triple glazing with the multifunctional GEWE-therm® safe thermal insulation glass. The glass structure made of toughened laminated safety glass (LSG made of heat-strengthened glass or ESG-H) with the super-neutral SunGuard SN 70S HT solar control glass, the Climaguard Premium2 thermal insulation glass and a mainly partially toughened laminated safety glass interior glazing not only offers highly effective thermal insulation with colour stability, but also a high level of impact resistance and very good injury protection in the event of glass breakage. The exceptional light transmission of the glazing allows maximum daylight incidence on the office floors without disturbing reflections.

Special safety precautions had to be taken in the area of the parapet glazing on the roof terrace facing Potsdamer Platz. Here, semi-toughened laminated safety glass mono glazing was used for fall protection.

Glass types used

The following products were used in the implementation