Open APIs

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• Historical detailed plan maps of the city of Helsinki

  Old detailed plans of Helsinki. The detailed plan maps for years 1820, 1838 and 1878 can be downloaded as TIFF-files. The guidemaps for all years can be found through WMS API....

  • TIFF
  • WMS

• Combined Detailed Plan Map of The City of Helsinki

  The detailed plan map of Helsinki is a combined map of the legally valid detailed plans in the area of Helsinki. The dataset includes both detailed plans and underground...

  • WMS
  • TIFF