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Colleretto Giacosa: what to know before buying a home

A municipality in the province of Torino, Piemonte. Official data on earthquakes, population, services and transport.

Liveability index free for any address

Search for an address in Colleretto Giacosa

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 Umberto I 1, Colleretto Giacosa.

Colleretto Giacosa, Giacosa's birthplace and the Bioindustry Park

The village is named after Giuseppe Giacosa, the playwright born here who wrote, with Luigi Illica, the librettos of Puccini's La Bohème, Tosca and Madama Butterfly. Colleretto Giacosa lies in the Canavese, a short way from Ivrea, between the first hills and the plain, at about two hundred and eighty metres.

Today the name comes up for another reason too: the municipality is home to the Bioindustry Park, a science park devoted to biotechnology and the life sciences, which brings researchers and companies to the area. Otherwise Colleretto is a residential village, with detached houses, villas and a small historic core. For secondary schools, the hospital and shops, Ivrea is the place to go, by car.

There were 585 residents in 2023, 3.0% fewer than in 2011: a modest fall. The average age is 49.3, above the 47.4 of the Metropolitan City of Turin, with over-65s at 27.5%. Foreign residents account for 6.3%. Declared incomes are slightly below the provincial average.

The municipality is in seismic zone 3, like 271 of the 312 municipalities around Turin, and the expected ground acceleration in the built-up area is low, about 0.045 g. For a villa from the 1970s or 1980s, energy rating, insulation and the state of the services matter more.

The Revenue Agency (Agenzia delle Entrate) cadastral maps are available, so the report traces the address to its land parcel. Flooding along streams and landslides on slopes are checked on the official maps for the exact spot.

Key points

  • Birthplace of Giuseppe Giacosa, Puccini's librettist.
  • Home to the Bioindustry Park, a biotechnology science park.
  • 585 residents in 2023, down 3.0% since 2011.
  • Seismic zone 3, expected acceleration about 0.045 g.

Overview

Colleretto Giacosa is a municipality in the province of Torino, in Piemonte. At the end of 2023 it had 585 residents, ranked 245 of 312 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Colleretto Giacosa is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (271 of 312) are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.045 g, a low 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 fallen by 3.0%. The estimated average age is 49 years, higher than the province average (47). 28% of residents are over 65 (the regional figure is 27%). Foreign residents make up 6.3% of the population. On average, a household has 2.1 members.

Income and climate

In tax year 2024, taxpayers in Colleretto Giacosa declared an average taxable income of 25,176 euros, below the provincial average (27,231 euros). The Italian average is 24,895 euros.

Colleretto Giacosa is in climate zone E, with 2,779 heating degree days: heating may be switched on from 15 October to 15 April, for up to 14 hours a day. The same table puts the town hall at 280 metres above sea level.

Services

The data shows no schools within the municipality, against a provincial average of 0.8 per 1,000 residents.

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 11.5% of the land in Colleretto Giacosa, compared with 8.6% in the province and 6.7% in the region. In 2024 built-up land stayed almost the same.

Radon and contaminated sites

Colleretto Giacosa is not among the radon priority areas designated by the Regione Piemonte in 2023. Radon varies from building to building and can only be known by measuring it, especially on ground floors and in basements.

Official databases list 2 contaminated sites, or sites still under investigation, in Colleretto Giacosa. The report tells you whether one is close to the address.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Colleretto Giacosa: 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

The cadastral maps for Colleretto Giacosa are public: from the address the report finds the sheet and parcel number.

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 7 inhabited census areas in Colleretto Giacosa. Half of the residents live in areas scoring 53 or more.

Residents by band

  • fair 100.0%

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 001092. The text on this page is generated automatically from the data.