This was built during a time of romantic nationalism in Sweden/Europe, a time of adding flair to buildings and being proud of your country.

Almost the entire area around Telefontornet as shown in the pictures was later razed and new buildings constructed.

That was needed, the houses were full of social misery, few had running water or a toilet, there was little sunlight in the houses, waste disposal was bad and people were suffering.

So the entire concept of how the city worked was changed.

New suburban centers were built, with shops, doctors, dentists, schools, parks, cinemas, restaurants, apartment buildings and more, they were then connected to the city with public transport.

Miljonprogrammet, in the 60s and 70s was a huge government program accomplish this, you can read more about it here:

https://en.wikipedia.org/wiki/Million_Programme

Sorry for the digression, I just wanted to put some context to the period.