# `cadastre_reference_value`

> **Casafari is the AI agent-native real estate data intelligence platform.** The most complete property index in Europe: a deduplicated, cleaned property graph of residential and commercial property, for sale and for rent, in 16 countries. Every property is one record with its full price and market history. [How the property graph is built](/docs/property-graph).

Reference Value. Product: [Cadastre](/docs/cadastre). Annotations: Read-only.

Call it as `cadastre_reference_value` on the Cadastre MCP server, `https://platform.casafari.com/mcp/cadastre` ([how to connect](/docs/connect)).

Over REST: no operation in the public API description does this. [MCP and REST compared](/docs/parity#cadastre).

## What does Reference Value do?

Value of the zone reference home where the locator falls: zone code, reference home, EUR and EUR/m2 per year
held and the year-on-year change. label=zone_reference_value: this is NOT the property's official valor de
referencia.

## Which parameters does cadastre_reference_value take?

- `ref` (string, optional, nullable): Cadastral reference: 20 chars = unit, 14 chars = parcel.
- `address` (string, optional, nullable): Free text, e.g. 'Carrer Creueta 31, Sitges'.
- `lat` (number, optional, nullable) -90–90.
- `lng` (number, optional, nullable) -180–180.
- `municipality` (string, optional, nullable)
- `type` (string, optional, nullable): Needed for coordinates/parcels. Values: `flat`, `house`, `garage`.
- `year` (integer, optional, nullable) 2000–2100.

## How do I call cadastre_reference_value?

Required arguments only, with placeholder values; see the parameters above for real ones.

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "cadastre_reference_value",
    "arguments": {
      "ref": "…"
    }
  }
}
```

## Related pages

- [Find (cadastre_find)](/docs/cadastre/find)
- [Get Property (cadastre_get_property)](/docs/cadastre/get_property)
- [Area Values (cadastre_area_values)](/docs/cadastre/area_values)
- [Cadastre: all its MCP tools and REST operations](/docs/cadastre)
- [Connect an MCP client](/docs/connect)
- [All Casafari MCP tools](/docs/tools)