Ferro Haus (Pyramid by The Lake) Justus Dahinden, Zurich 1970, Brutalism © HEARTBRUT / Karin Hunter Bürki

FERROHAUS (PYRAMID AT THE LAKE)

COMMERCIAL BUILDING / PRIVATE CLINIC, JUSTUS DAHINDEN, ZURICH 1965-1967

© Images & Text: Karin Bürki / HEARTBRUT

What if the Mayans had built a space station on Mars but got angered by the Americans on the moon? A plan was made. They precision dropped a pyramid-shaped monolith on Zurich’s leavy Seefeld neighbourhood, within walking distance to Pavillon Le Corbusier and Lake Zurich.

It may well look like a futurist temple dedicated to an ancient deity, but Ferrohaus’s extraterrestrial looks are really all down to the art of making a virtue out of necessity. Commissioned by Swedish metal company ‘Ferrolegeringar AG’, the business building had to adhere to strict building regulations stipulating upper floors to be scaled back. Architect Justus Dahinden came up with a pyramid shape clad in Cor-Ten steel – a nod to his client’s line of business. And what has Ferrohaus got to do with béton brut? Technically speaking, not very much. But picture it in concrete – it would tick all the boxes.  So we declare it a brute in spirit.

Ferrohaus’s signature patina of rich, brownish red is the result of Cor-Ten steel’s quick oxidising. One of the material’s biggest fans was artist Richard Serra, who used the rust effect widely for his monumental land art. During the seventies, Cor-Ten was also popular in corporate architecture. Back to the pyramid: the addition of copper-tinted protective glass windows complete the building’s striking tone on tone effect.

Originally, Ferrohaus served as a business building, with two luxury maisonettes comprising the top tier. The monthly rent for one of the five bedroom flats with sweeping lake views was 3000 Swiss francs (roughly 9000 CHF in today’s money). Now a private clinic, The Pyramid suits patients who like to wake up from elective surgery in a Dynasty-inspired room in plenty of beige.

Never the go-to choice for designing a functional building,
Justus Dahinden was an ‘urbanotopian’ architect who floated above the restrictive dogmas of postwar modernism. Both a man of faith and an avid believer in ’function follows form’, Dahinden was on a mission to reconnect architecture with the spiritual and social essence of humans. His designs seek to strike an ideal balance between radical design and
sound method. The Federal Institute of Technology Zurich graduate’s early output was informed by Frank Lloyd Wright, Antonio Gaudi and sacral architecture. In the 60s, he was one of the first to embrace and promote the theories and works of his avant-garde contemporaries Archigram and the Japanese metabolists. Notable works include ‘Schwabylon’ leisure-city in Munich, Rigi Haus in Weggis and Trigon village in Zurich Hottingen. Justus Dahinden passed away in spring 2020.

Ferro Haus (Pyramid by The Lake) Justus Dahinden, Zurich 1970, Brutalism © HEARTBRUT / Karin Hunter Bürki
Ferro Haus (Pyramid by The Lake) Justus Dahinden, Zurich 1970, Brutalism © HEARTBRUT / Karin Hunter Bürki
Ferro Haus (Pyramid by The Lake) Justus Dahinden, Zurich 1970, Brutalism © HEARTBRUT / Karin Hunter Bürki
Ferro Haus (Pyramid by The Lake) Justus Dahinden, Zurich 1970, Brutalism © HEARTBRUT / Karin Hunter Bürki
Three Loops, Grünau, Ralph Bänziger © Baugeschichtliches Archiv
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