Plot boundaries: where does the boundary run?

The property's registered boundary as GeoJSON in WGS84, ready to draw straight into a map without a separate conversion from UTM first.

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• Test in under a minute
• One GET call
• GeoJSON
• WGS84
• Updated continuously

From matrikkelnummer to plot boundary

The call tells you exactly where a property runs on the ground, as geometry and not just as text. Developers building their own map interfaces need the boundary as a polygon to draw, estate agents making map extracts for a sales prospectus avoid drawing the boundary by hand, and municipalities comparing their own planning data against Placepoint's copy need the same geometry in both places.

The answer is one simple GeoJSON object: type is always Feature, geometry is a Polygon in WGS84, and properties is empty for a property boundary. A building's footprint fills the same field with height and number of floors instead, see Building footprints.

The geometry comes from the same matrikkel and FKB basis that the map interface draws from itself, so a property looks identical in your own application as it does in Placepoint Fusion.

• GeoJSON in WGS84, ready to draw

  No separate conversion from UTM. The geometry goes straight into a map layer, in the same coordinate system most map libraries and mobile devices already work in.

• The same basis as the map interface

  The boundary comes from the same matrikkel and FKB basis that the map interface draws, so the property looks identical in both places.

• One geometry per property

  A property with several parcels returns one combined geometry, not one per parcel, so you do not have to merge them yourself.

Fields that actually tell you something

One GET call with the matrikkelnummer gives you the boundary. The fields below are the three that make up the whole GeoJSON answer.

GET/properties/{country}/{cadastreId}/boundary

curl -X GET "https://data.placepoint.no/properties/NO/0301-209-369-0-0/boundary" \
  -H "Authorization: Bearer $TOKEN"

svar · 200

{
  "type": "Feature",
  "geometry": {
    "type": "Polygon",
    "coordinates": [
      [
        [
          10.7561,
          59.9074
        ],
        [
          10.7565,
          59.9074
        ],
        [
          10.7565,
          59.9077
        ],
        [
          10.7561,
          59.9077
        ],
        [
          10.7561,
          59.9074
        ]
      ]
    ]
  },
  "properties": {}
}

Scope: property:readTeknisk referanse og Try-it

Vis alle felt (3)

Felt	Type	Beskrivelse
type	string	Always "Feature".
geometry	object	GeoJSON geometry object.
properties	object	Feature properties. A building footprint carries heightM (number, meters) and floors (integer); a property boundary leaves this empty.

The boundary can be drawn directly in a map library such as MapLibre GL JS:

const res = await fetch(`${base}/properties/NO/${cadastreId}/boundary`, {
  headers: { Authorization: `Bearer ${token}` },
});
const boundary = await res.json();
map.addSource("tomtegrense", { type: "geojson", data: boundary });
map.addLayer({
  id: "tomtegrense-linje",
  type: "line",
  source: "tomtegrense",
  paint: { "line-color": "#1d4ed8", "line-width": 2 },
});

Test in under a minute

1. Log in with GitHub

   One click, under a minute, no payment card. The key comes back to this page.

2. Call the endpoint

   The curl above fills itself in with your key when you are logged in. The call only needs the country code and the matrikkelnummer.

3. Apply the answer

   Put the GeoJSON object straight into your map library as a source, as the snippet above shows for MapLibre GL JS.

Data and sources

The boundaries come from the matrikkel at Kartverket, updated continuously through Geonorge.

See also

• The map interface
• The Property map layer
• Datasets
• Technical reference
• Placepoint API

Questions and answers

Which coordinate system does the geometry come in?

WGS84, the same system most map libraries and mobile devices work in. No conversion from UTM is needed before the geometry goes into a map layer.

Do you cover all municipalities?

Not yet. The boundary data is not yet available for all municipalities, and a property in a municipality without coverage gives a 404 instead of an empty geometry.

How fresh is the data?

The boundaries come from the matrikkel at Kartverket, updated continuously through Geonorge.

What happens with a property that has several parcels?

The call gives the boundary for the whole property as one object. A property with several parcels returns one combined geometry, not one per parcel.

Draw the property boundary in your own map

One GET call gives the boundary as GeoJSON in WGS84, ready for a map library. Log in with GitHub at the top of the page to try it today, or get in touch for access to the whole country.

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