The Neighbourly Crown Land API returns Ontario's Crown land use areas as GeoJSON polygons: provincial parks, conservation reserves, forest reserves, wilderness areas, enhanced management areas and general use areas. Each comes with its designation in English and French and links to the municipalities it overlaps.
Crown land is publicly owned land managed by the government. In Ontario it makes up most of the province, and each area is given a land use designation that says what it is for: a provincial park, a conservation reserve, a forest reserve, a wilderness area, an enhanced management area or a general use area. This API returns those areas from Ontario's Crown Land Use Policy Atlas as map polygons, with the designation, category and name in English and French.
Every area carries its designation (for example Provincial Park or Conservation Reserve) and category (for example Nature Reserve or Recommended Protected Area) in both official languages.
Areas list the county_ids and lower_tier_municipality_ids they overlap, so a municipality page can show its parks and reserves.
Viewport queries return up to 5,000 areas with pre-computed GeoJSON, enough for a regional overlay in one request.
These are the fields the API returns for this layer. Field names match the JSON response exactly.
| Field | Type | Description |
|---|---|---|
| name_eng / name_fr | string | Area name in English / French |
| desig_eng / desig_fr | string | Designation, e.g. Provincial Park, Conservation Reserve |
| category_e / category_f | string | Category, e.g. Nature Reserve |
| class_name | string | Source class code, e.g. PROVPREG, CONRVREG |
| pol_ident | string | Policy identifier |
| sys_area | float | System-calculated area |
| county_ids / lower_tier_municipality_ids | integer[] | Overlapping places |
| ogf_id | integer | Source feature ID |
| boundary_geojson | GeoJSON | MultiPolygon geometry |
All requests go to https://api.neighbourly.io and send your key in the Api-Key header. A viewport is a JSON bounding box, {"southWestLat":…,"southWestLon":…,"northEastLat":…,"northEastLon":…}, URL-encoded.
Live response, trimmed.
[
{
"id": 110,
"ogf_id": 145016835,
"name_eng": "CARDWELL TOWNSHIP OLD GROWTH CONSERVATION RESERVE",
"desig_eng": "Conservation Reserve",
"desig_fr": "Réserve de conservation",
"class_name": "CONRVREG",
"province_ids": [40],
"county_ids": [212],
"lower_tier_municipality_ids": [174]
}
]
Check whether a rural or waterfront lot borders a provincial park, conservation reserve or general use area. That adjacency is a selling point and sometimes a constraint.
Flag properties next to large wild areas as an input to rural risk review.
Show users the boundary between private and public land, and what each designation allows.
Screen sites against protected-area designations early in a project.
Every environmental layer shares the same API key, coordinate system and response conventions. Combine them in one integration.
Common questions about the Crown Land Data API.
Publicly owned land managed by the government. In Ontario each Crown land area has a land use designation, such as provincial park, conservation reserve or general use area.
Provincial parks, conservation reserves, enhanced management areas, forest reserves, wilderness areas, provincial wildlife areas, general use areas, Far North protected areas and recommended parks and reserves.
Ontario's Crown Land Use Policy Atlas (CLUPA), published by the Ministry of Natural Resources.
No. It shows Crown land use areas only. Use the Neighbourly property and address layers for private parcels.
Not today. This layer is Ontario's Crown land use atlas.
Request an API key from the dashboard or book a demo. Every request sends the key in the Api-Key header. Pricing is usage-based.
Neighbourly normalizes public open data into one schema. Source licences and attribution apply; see our terms.
Get an API key and query this layer today, or talk to us about coverage and volume.