Open APIs

Löydä kaikki pääkaupunkiseudun avoimet rajapinnat täältä!

• Address API of Uusimaa

  You can use the address interface of Uusimaa to search for official addresses and their coordinates for the entire Uusimaa region. The interface provides the coordinates, postal...

  • JSON
  • XML

• Buildings in the Helsinki metropolitan area

  Buildings in the Helsinki metropolitan area has been published on the basis of data from the regional basic register maintained by HSY for the municipalities Helsinki, Espoo,...

  • WMS
  • WFS

• Lot reserve in the Helsinki Metropolitan Area per block (SeutuRAMAVA)

  The dataset contains information on valid city plans in the Helsinki metropolitan area (Espoo, Helsinki, Kauniainen, Vantaa) in floor square metres, summed up at the block level...

  • WFS
  • WMS
  • SHP
  • TAB
  • KML
  • XLSX

• Orthophotos of the Helsinki metropolitan area

  Aerial orthoimages of the Helsinki metropolitan area from 2015 to 2023. The latest orthoimages of the Helsinki metropolitan area were acquired in June 2023. The ground sampling...

  • WMTS
  • WMS

• Gross floor area of housing in new city plans for the Helsinki region 2016–2019

  City plans that were approved and came into force in 2016–2019 are a geographic dataset containing areal geometries. The data contains the delimitations of those city plans that...

  • WFS
  • SHP
  • TAB

• Housing production in the Helsinki region 2016-2019

  Started and completed apartments in 2016-2019 is dataset with point-shaped spatial information covering 14 municipalities in the Helsinki region (Espoo, Helsinki, Kauniainen,...

  • WFS
  • SHP
  • TAB

• Amount of solar radiant energy on the roofs in the Helsinki Metropolitan Area

  Map data that shows the amount of solar radiant energy calculated on the roofs of buildings in the Helsinki metropolitan area. The solar radiant energy has been modelled on...

  • WMS

• Area where the annual limit value for nitrogen dioxide has been exceeded in the Helsinki metropolitan area

  The dataset shows the areas where the annual limit value for nitrogen dioxide (40 µg/m3) has exceeded or has been in danger of exceeding. In 2022 it was estimated that the...

  • WFS
  • WMS
  • SHP

• Air quality monitoring sites and annual nitrogen dioxide (NO2) averages in the Helsinki metropolitan area

  Monitoring site data includes permanent monitoring sites, mobile monitoring sites and passive samplers, as well as the annual average concentrations (μg/m3) of nitrogen dioxide...

  • WFS
  • WMS
  • XLSX
  • SHP
  • TAB

• Guide Map of Helsinki Metropolitan Area

  The guide map of the Helsinki Metropolitan Area is a map of the area with a generalised documentation technique, produced to assist in positioning and guidance. The guide map is...

  • TIFF
  • WMS

• Housing production in the Helsinki region 2012-2015

  The material contains location-specific data collected on a calendar year basis on housing production in the Helsinki region in 2012-2015. The data covers the 14 municipalities...

  • WFS
  • SHP
  • TAB
  • CSV

• Floor area of housing in new city plans for the Helsinki region 2012–2015

  The material contains approved, legally valid and proposed city plans in the Helsinki region in 2012–2015 in geographic dataset. The Helsinki Region Environmental Services...

  • SHP
  • TAB
  • CSV
  • WFS
  • WMS

• Helsinki Region Transport public transport stations

  Helsinki Region Transport's (HSL) public transport stations. Data attributes and preview in HSL's website.

  • SHP
  • KML
  • CSV
  • GEOJSON
  • GEOSERVICE

• Helsinki Region Transport passengers by station

  The weekday averages of passenger boardings at HSL’s stops and stations in November 2016. The number of passenger boardings per stop is the average of the weekdays (Mon–Fri) in...

  • SHP
  • KML
  • CSV
  • GEOJSON
  • GEOSERVICE

• Helsinki Region Transport destination database

  NOTE: This data is no longer updated. Destination database used, alongside address information, for positioning in Helsinki Region Transport’s (HSL) Journey Planner service....

  • SHP
  • KML
  • CSV
  • GEOJSON
  • GEOSERVICE

• Helsinki Region Transport tariff zones

  Helsinki Region Transport tariff zones that came into force 2019. Data attributes and preview in HSL's website.

  • SHP
  • KML
  • CSV
  • GEOJSON
  • GEOSERVICE

• Helsinki Region Transport public transport lines

  Helsinki Region Transport's (HSL) public transport lines 2021-2022. Data attributes and preview in HSL's website.

  • SHP
  • KML
  • CSV
  • GEOJSON
  • GEOSERVICE

• Helsinki Region Transport public transport knots

  Helsinki Region Transport's (HSL) public transport knots. Data attributes and preview in HSL's website.

  • SHP
  • KML
  • CSV
  • GEOJSON
  • GEOSERVICE

• Helsinki Region Transport terminals

  Helsinki Region Transport's (HSL) terminals 2021-2022. Data attributes and preview in HSL's website.

  • SHP
  • KML
  • CSV
  • GEOJSON
  • GEOSERVICE

• Helsinki Region Transport shift frequencies

  Helsinki Region Transport's (HSL) shift frequencies for buses and trams between stops. Data attributes and preview in HSL's website.

  • SHP
  • KML
  • CSV
  • GEOJSON
  • GEOSERVICE