The Swedish datacentre with a bunker mentality

"The client did not want to compromise, and gave me quite a lot of freedom," architect France-Lanord said.

Dynamite was required to clear and enlarge the bunker, which had a two-storey concrete structure in one of the side caverns. The floors had to be lowered, to allow for a false floor for cabling.

"The rock walls were treated with lacquer, to show the granite and allow the stone to still breathe, but prevent it from making dust," France-Lanord said. The rock effect on the ceiling is created with sprayed-on concrete — "a usual technique for underground stations", according to France-Lanord. 

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