Cadastral category (ital.: categoria catastale)

8/26/2026

The cadastral category describes the tax and cadastral classification of a property unit in the Italian building cadastre. It specifies the type of property, for example, a flat, office, shop, warehouse, garage, hotel or industrial building.

The cadastral category is shown on the cadastral extract. This document usually also contains further details about the property, such as the parcel number, building unit, cadastral class, type of property, area and cadastral yield.

The cadastral yield is a tax value assigned to every property unit recorded in the cadastre. It forms an important basis for various tax calculations, in particular for the cadastral value, the municipal property tax and certain taxes relating to purchase, gift or inheritance.

Difference between cadastral category and cadastral class

The cadastral category describes the type and intended use of the property. The cadastral class describes, within a category, the property’s yield level; in simple terms, this refers to its quality or tax yield potential in relation to comparable units.

An overview of the main building categories

The Italian cadastral categories are divided into groups. Groups A, C and D are particularly relevant in practice.

Category Description Typical examples
Group A Flats, offices and similar units A/1: High-end flats
A/2: Flats of a standard quality
A/3: Basic flats
A/4: Basic or traditional flats
A/7: Small villa-style residential buildings
A/8: Villas, estates
A/10: Offices
Group B Buildings for public or community use Schools, non-profit hospitals, public offices, libraries, museums, boarding schools, barracks
Group C Business premises, warehouses, workshops and ancillary rooms C/1: Shops and retail premises
C/2: Storage rooms, cellars, storerooms
C/3: Workshops
C/6: Garages, parking spaces and carports
C/7: Canopies
Group D Properties with a specific commercial or industrial purpose D/1: Production buildings
D/2: Hotels and guesthouses
D/7: Buildings for industrial activities
D/8: Buildings for commercial or service activities
Group E Properties with a specific public purpose Railway stations, airports, bridges, lighthouses, buildings for public services or special public purposes
Group F Provisional or special cadastral units F/1: Urban areas
F/2: Units at risk of collapse or unusable
F/3: Buildings under construction
F/5: Terraces or flat roofs

Why is the correct cadastral category important?

The correct cadastral category is important in several areas:

  • IMU and GIS: The category and the cadastral value determine the basis for calculating the municipal property tax (IMU); in South Tyrol, this is known as the GIS.
  • Purchase and sale: In the case of property transfers, the category is relevant to the tax assessment basis.
  • Gifts and inheritance: The cadastral category affects the basis of assessment for inheritance and gift tax, as well as for mortgage and cadastral tax.
  • Tax relief: Many forms of relief apply only to specific categories, such as relief for a primary residence and the flat-rate tax on the letting of residential property (cedolare secca).

Change of cadastral category

The cadastral category should correspond to the actual condition and permitted use of the property. If the use changes or structural alterations are carried out, an adjustment to the cadastral data may be required. A change to the cadastral category is effected via a technical cadastral notification submitted by an authorised technician.

Conclusion

The cadastral category is a key element of the Italian building cadastre. It not only indicates the type of property in question but also affects tax calculations, property transfers, lettings and tax relief.

Anyone buying, selling, letting, converting or using a property for business purposes in Italy should therefore check whether the category stated in the cadastral extract is correct and corresponds to the actual use.

Reports & News
5/28/2026
Reverse Charge – Shifting VAT Liability under Italian Tax Law
HOW REVERSE CHARGE WORKS Note: document translated from German; images not translated. Wikipedia: “…the ...
read more
11/7/2025
Planned tax relief measures for individuals and employees in Italy for IRPEF 2026
Note: These measures are drafts for the 2026 Budget Law. The measures may still change or be entirely ...
read more
Rienzfeldstraße 30
39031 Bruneck - South Tyrol