Alfred Grenander: Architect Of The Underground

Kreuzberged pays tribute to the man who built over half of Berlin’s U-Bahn stations…  

Grenander in front of the Reichstag model -Paul Wallot, Reichstag´s architect, was his employer in Grenander´s early career.
Grenander in front of the Reichstag model. Paul Wallot, the Reichstag’s architect, was an early employer of Grenander.

Despite his works filling the streets of Berlin (both over- and underground), urban designer and architect Alfred Grenander remains largely unknown to many of the city’s residents and visitors. Yet he was responsible for over half of Berlin’s 173 U-Bahnhöfe (U Bahn stations), many of which were—and still are, in some cases—the finest the city has ever seen.

A Swede who lived and worked in Berlin for most of this life, Grenander was a member and co-founder of the Deutscher Werkbund (German Work Federation), an association of architects, designers and engineers who believed in a holistic approach to modern design as well in promoting a closer relationship between the industry and the designers. He was also a protégé of Dutch architect and interior designer Henry van de Velde.

As well as creating stations such as Wittenbergplatz, Alexanderplatz, Platz der Luftbrücke, Deutsche Oper (formerly Bismarckstrasse), Eberswalder Strasse (formerly Danziger Strasse), the newer Kottbusser Tor (opened in 1928 after the old station was demolished for the U8) and Hermannplatz—which boasted three levels and two lines as well as direct access to the once biggest department store in Europe, Karstadt am Hermannplatz, an architectural masterpiece in itself—Grenander also designed some of the train carriages for the lines he helped build, and invented the colour-coding (Kennfarben) on the underground system that we all still use today.

Other of his structures can still be seen in Berlin, including the immense Knorr-Bremse AG, a sprawling red-brick factory complex near Ostkreuz that cleverly mixes Art Nouveau and other modernist designs, and two of his Zeitungskioske (newsagent’s kiosks)—one at Savignyplatz in Charlottenburg and another, today used as a small kebab shop, Kreuzberg’s at Heinrichplatz—that were once memorably described by critic Ernst Schur as “little gems in the hustle and bustle of the streets” that twinkle “like little Japanese gateways”.

Indeed, most experts and critics of the day found themselves reaching for superlatives—“elegant”, “exciting”, “graceful”, even “magical”—to describe Grenander’s works, and when he died on the 14 July, 1931 (83 years ago yesterday), he was mourned by a large section of the city populace.

Fortunately, Berlin has not totally forgotten him. In June 2009 the previously nameless little square in front of another one of Grenander’s masterpieces, the U-Bahnhof Krumme Lanke, was given the name Alfred-Grenander-Platz.

And in 2013, to celebrate the architect’s 150th birthday and the Grenanderjahr in Berlin, the former BVG Office Building on the corner of Rosa-Luxemburg-Strasse and Dircksenstrasse in Berlin-Mitte was officially named “Grenanderhaus” (the U-Bahn station nearby, Rosa-Luxemburg-Platz or “Schönhauser Tor” when opened in 1913 was also Grenander’s work).

Since many of Grenander’s original stations were destroyed in the war, or have since been otherwise modified, we have raided some historical archives (a special thank you to the marvellous Berliner U-Bahn Archive) to find images of the originals. But some of his works still exist intact, as do his U-Bahn colour schemes certainly do, so don’t be surprised if you recognise some of the below…

U-Bahnhof Danziger Strasse (Eberswalder Strasse today) in 1913 (through The Collection of Alex Maruszat)
U-Bahnhof Danziger Strasse (Eberswalder Strasse today) in 1913. Image:, Sammlung Alex Mauruszat.


The railing at the U-Bahnhof Friedrichstrasse (Stadtmitte today)
Railings at the U-Bahnhof Friedrichstrasse (Stadtmitte today).


Majoliken aus den Königlichen Werkstätten in Cardinen. vorhalle kaiserfhof ubhf (1)
The beautiful glazed tiles from Cadinen (Kadyny) in West Preußen (Poland today) rendered this entrance hall of the Bahnhof Kaiserhof (Mohrenstrasse today) truly unique. Image:, Sammlung Axel Mauruszat.


kaiserhof entrance and plaza (1)
U-Bahnhof Kaiserhof (Mohrenstrasse today) shortly after its opening in 1908 – one of the stations on the Potsdamer Platz to Spittelmarkt line known as the U2 today. Image from, Sammlung Axel Mauruszat.


1200px-Berlin,_Mitte,_Rosa-Luxemburg-Strasse_2,_Grenanderhaus (1)
Grenanderhaus (former BVG office) on the corner of Rosa-Luxemburg-Strasse and Dirckenstrasse.


kaiserhof (1)
The staircase at the Western end of the U-Bahnhof Kaiserhof (Mohrenstrasse today). Image:, Sammlung Axel Mauruszat.


Berliner_U-Bahnhof_Wittenbergplatz_(von_Westen_bei_Nacht) standandizer (1)
U-Bahnhof Wittenbergplatz today, with the new building designed by Grenander after the refurbishment of the station in 1913 (image: Standardizer)


Hochbahn Viaduct in Gitschiner Strasse designed by Alfred Grenander
The Hochbahn viaduct in Gitschiner Strasse. Image:, Sammlung Alex Mauruszat.


The original viaduct of the Hochbahn between Potsdamer Strasse and Frobenstrasse, with characteristically "spread" pylons.
The original viaduct of the Hochbahn between Potsdamer Strasse and Frobenstrasse, with characteristically “spread” pylons. Image:, Sammlung Axel Mauruszat.


Ubahn-Rosenthalerplatz phaeton1 colour orange (1)
U-Bahnhof Rosenthaler Platz on the U8 line was decorated with warm orange tiles from Cadinen (Kadyny) in today’s Poland. Grenander’s colour coding remains today. Image: phaeton1, CC BY-SA 3.0.


kiosk at heinrichplatz nmp
The original Grenander Zeitungskiosk from 1905 in Heinrichplatz in Berlin-Kreuzberg. Image: notmsparker.


U-Bahnhof Krumme Lanke, originally U1 line and changed to U3 in 2004 (image: IngolfBLN)
U-Bahnhof Krumme Lanke, originally on the U1 line and changed to the U3 in 2004. Image: IngolfBLN, Creative Commons Attribution-Share Alike 2.0 Generic license.



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