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Caldonazzo: what to know before buying a home

A municipality in the province of Trento, Trentino-Alto Adige/Südtirol. Official data on earthquakes, population, services and transport.

Liveability index free for any address

Search for an address in Caldonazzo

The report looks at the exact point: landslide and flood risk, seismic zone, price per square metre for the area, services and nearby stops.

For example: Via della Villa 1, Caldonazzo.

Caldonazzo, the lake and the Valsugana railway

Lake Caldonazzo, the source of the river Brenta, gives the village its name and much of its economy. Caldonazzo lies in the upper Valsugana, south-east of Trento, near the southern shore of the lake, among the mountains closing the valley; in summer the beaches, campsites and holiday homes fill up, and in winter the village goes back to being mainly residential.

Growth in recent years is the most striking figure. In 2023 there were 3,964 residents, 18.7% more than the 3,340 counted in 2011 by Istat, the national statistics office. The population is young: an average age of 43.6 against 45.4, and over-65s at 20.7%. Foreign residents make up 4.6% and average declared incomes are in line with the province.

For anyone working in Trento or Pergine, the Valsugana railway, with a stop in the village, matters as much as the valley main road. The market offers flats in small blocks, houses with gardens and many second homes near the lake. This is climate zone F: insulation and heating weigh on running costs even on the valley floor.

Caldonazzo is in seismic zone 3 of the Civil Protection classification, like 147 municipalities in Trentino, with an expected ground acceleration of about 0.089 g. For a flat, look first at the energy rating and the condition of the building.

Trentino uses the tavolare system, with the land book (libro fondiario) kept by the Province, and the Revenue Agency (Agenzia delle Entrate) does not publish cadastral maps: the report cannot trace the plot from the address and flags this. Checks on landslides and debris flows on the slopes, and on flooding near the lake and streams, are still made for the exact point of the house.

Key points

  • On Lake Caldonazzo, source of the Brenta, in the upper Valsugana.
  • Population up 18.7% since 2011.
  • Seismic zone 3; a stop on the Valsugana railway.
  • Tavolare land registry: no Revenue Agency cadastral maps.

Overview

Caldonazzo is a municipality in the province of Trento, in Trentino-Alto Adige/Südtirol. At the end of 2023 it had 3,964 residents, ranked 29 of 166 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Caldonazzo is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (147 of 166) are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.089 g, a moderate value: the level with a 10% probability of being exceeded in 50 years, on rock.

Even in zone 3, seismic standards apply to new buildings: for an older building, ask about the design year and any structural work.

Population

Compared with the 2011 census, the resident population has grown by 18.7%. The estimated average age is 44 years, lower than the province average (45). 21% of residents are over 65 (the regional figure is 22%). Foreign residents make up 4.6% of the population. On average, a household has 2.3 members.

Income and climate

In tax year 2024, taxpayers in Caldonazzo declared an average taxable income of 25,721 euros, in line with the province (25,718 euros). The Italian average is 24,895 euros.

Caldonazzo is in climate zone F, with 3,089 heating degree days, with no limits on when heating may be used. The same table puts the town hall at 480 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Caldonazzo has 1 school and 1 pharmacy. The Overture Maps data also lists 1 grocery shop, 1 healthcare facility, 4 sports facilities and 2 parks and green areas.

There are 0.3 grocery shops and supermarkets per 1,000 residents, fewer than the province average (0.8).

Public transport

We do not yet have open public transport timetables for this municipality: the report says so explicitly, without inventing distances.

How built-up it is

Buildings, roads, car parks and other sealed surfaces cover 5.9% of the land in Caldonazzo, compared with 3.1% in the province and 2.9% in the region. In 2024 built-up land stayed almost the same.

Radon and contaminated sites

Caldonazzo is not among the radon priority areas designated by the Provincia autonoma di Trento in 2026. According to the ISPRA map, the estimated radon emission in the municipality is medium. Radon varies from building to building and can only be known by measuring it, especially on ground floors and in basements.

Official databases list no open contaminated sites in Caldonazzo; one has been cleaned up or closed.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Caldonazzo: the report checks the address against the ISPRA maps.

House prices

The Revenue Agency's price ranges per square metre (OMI) apply to zones, not to whole municipalities: the report gives the range for the address's zone.

Land registry

For Caldonazzo the Revenue Agency does not publish cadastral maps: the land registry here uses the tavolare (land book) system. The report cannot give a parcel reference, but it still checks risks, services and transport at the address and states this clearly.

Liveability area by area

The Vicinalia liveability index runs from 0 to 100 and looks at the place, not the people who live there: services within walking distance, transport, green space, natural hazards, air, quiet, buildings and connection. Here it is worked out at the centre of each of the 33 inhabited census areas in Caldonazzo. Half of the residents live in areas scoring 73 or more.

Residents by band

  • fair 17.3%
  • good 63.6%
  • very good 19.2%

Vicinalia index by census area, licence CC BY-SA 4.0. Data: IdroGEO ISPRA (2026), Istat, INGV, EEA, AGCOM, Overture Maps and OpenStreetMap.

The colour is the value at the centre of the area. For an exact address, search for it above: the free check looks at that exact point. How the index is worked out

Data sources

ISTAT code 022034. The text on this page is generated automatically from the data.