Cadastral API

Query Australian property boundary and parcel data.

Query Parcel

GET /v1/cadastral

Parameters

Parameter	Type	Required	Description
lat	float	Yes*	Latitude
lng	float	Yes*	Longitude
address	string	Yes*	Street address
lot	string	Yes*	Lot number
plan	string	Yes*	Plan number
state	string	No	State code (QLD, NSW, VIC, etc.)
crs	string	No	Output CRS (default: EPSG:4326)
format	string	No	geojson, shapefile, gpkg

*Provide one of: lat/lng, address, or lot/plan.

Example

curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://api.geolocarta.com/v1/cadastral?lat=-27.4698&lng=153.0251"

Response

{
  "data": {
    "id": "cad_qld_sp123456_42",
    "lot": "42",
    "plan": "SP123456",
    "area_sqm": 607.5,
    "state": "QLD",
    "lga": "Brisbane City",
    "zoning": "Residential - Low Density",
    "title_ref": "50012345",
    "geometry": {
      "type": "Polygon",
      "coordinates": [[...]]
    }
  }
}

Bulk Query

POST /v1/cadastral/bulk

Fetch all parcels within a bounding box or polygon.

Request Body

{
  "bounds": {
    "north": -27.46,
    "south": -27.48,
    "east": 153.04,
    "west": 153.02
  },
  "format": "geojson"
}

GeoJSON Endpoint

GET /v1/cadastral/geojson

Returns a GeoJSON FeatureCollection, suitable for direct use in mapping libraries.

Parameter	Type	Description
bounds	string	south,west,north,east
limit	integer	Max features (default: 500)