Hagalund () is a residential area and railway yard in Solna Municipality, 5 km north of central Stockholm. It is known for the blue highrise buildings "Blåkulla" (Blue Hill or Blockula) which, against a rather strong and long-lasting opinion, in the beginning of the 1970s replaced a picturesque working-class and craftsman neighbourhood built in the 1890s and portrayed by artist Olle Olsson Hagalund. There are still about half a dozen old houses preserved, a minor area called Gamla Hagalund (Old Hagalund) in the eastern part of the area.
https://en.wikipedia.org/wiki/Hagalund