Cadastral map

A cadastre (also spelled cadaster), using a cadastral survey or cadastral map, is a comprehensive register of the real estate or real property's metes-and-bounds of a country.

In most countries, legal systems have developed around the original administrative systems and use the cadastre to define the dimensions and location of land parcels described in legal documentation. The cadastre is a fundamental source of data in disputes and lawsuits between landowners.

In the United States, Cadastral Survey within the Bureau of Land Management (BLM) maintains records of all public lands. Such surveys often require detailed investigation of the history of land use, legal accounts, and other documents.

A cadastre commonly includes details of the ownership, the tenure, the precise location (therefore GNSS coordinates are not used due to errors such as multipath), the dimensions (and area), the cultivations if rural, and the value of individual parcels of land. Cadastres are used by many nations around the world, some in conjunction with other records, such as a title register.

The International Federation of Surveyors defines cadastre as follows:

A Cadastre is normally a parcel based, and up-to-date land information system containing a record of interests in land (e.g. rights, restrictions and responsibilities). It usually includes a geometric description of land parcels linked to other records describing the nature of the interests, the ownership or control of those interests, and often the value of the parcel and its improvements.

The word came into English through French from Late Latin capitastrum, a register of the poll tax, and the Greek katástikhon (κατάστιχον), a list or register, from katà stíkhon (κατὰ στίχον)—literally, "down the line", in the sense of "line by line" along the directions and distances between the corners mentioned and marked by monuments in the metes and bounds.

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