Cadastral maps and street numbers

What we use

• Cadastral maps from the Revenue Agency (Agenzia delle Entrate): the boundaries of land parcels (particelle) and map sheets (fogli) for the whole of Italy, downloadable by region. They are updated every six months. Licence CC BY 4.0.
• ANNCSU, the national register of street numbers and urban streets, kept by Istat and the Revenue Agency and updated by each Comune (the local council). It is updated every month. Licence CC BY 4.0.

How we use them

From the address we find the street number and its coordinates, then the parcel on the cadastral map where it falls. The report shows the sheet (foglio), the parcel number (particella), an area measured on the map drawing and the street numbers linked to the parcel.

Limits

• The area measured on the map is approximate and does not match the official cadastral area.
• About a third of Italy's street numbers do not yet have coordinates: in those municipalities we sometimes only find the street and ask you to mark the point on the map.
• In the provinces of Trento and Bolzano and in a few other municipalities the tavolare land registry (catasto tavolare) applies and the Revenue Agency does not publish the maps: the report says so and uses the position of the address.
• The map says nothing about flats, cadastral income or owners: for those you need a visura catastale, the official land registry record.

Official pages: cadastral map download and ANNCSU open data.