Cadastre
Overview
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A cadastre is an official map and register, maintained by government, containing ownership information for many of (or all of) the bits of land ('parcels' of land) in the jurisdiction. Note, that a Cadaster page 'is the placeholder for the description of cadaste systems in different countries'.
The International Federation of Surveyors (FIG) uses the term cadastre: FIG Commission 7 - Cadastre and Land Management. The same is 'Permanent Committee on Cadastre in the European Union (PCC)'
Before using such data you should check what license attaches to it.
Tags
The following tags can be used to link a parcel or building to official Cadastre information:
ref:cadastre=*
An alphanumeric string that contains a unique ID that is long-lived and sufficient to identify the apartment, building, parcel, plot or lot within the Cadastre agency's database. It should be chosen such that the ID does not change upon simple changes of ownership and is unlikely to change unless the parcel is subdivided or combined with other parcels.
Examples for Weber County, Utah, USA land owned by the US Forest Service:
ref:cadastre=220060010
url:cadastre=*
A URL to a Cadastre agency's web site. The URL could be to the top level of the web site, or to a search page, or (preferred) to a specific parcel ID within the agency's web site. Examples for Weber County, Utah, USA:
Link to a specific parcel (preferred)
This tag and value could be applied to a parcel=plot or building object.
url:cadastre=https://www3.co.weber.ut.us/gis/maps/gizmo2/index.html?find=220060010
Top-level web site
url:cadastre=https://www3.co.weber.ut.us/gis/maps/gizmo2/index.html
Used in
Seen in
National Cadastre Information
- France: WikiProject France/Cadastre
- Spain: Spanish Cadastre
- United Kingdom: Land Registry INSPIRE polygons