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Carrosio: what to know before buying a home

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

Liveability index free for any address

Search for an address in Carrosio

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 Gian Carlo Odino 1, Carrosio.

Carrosio, in the Lemme valley between Gavi and Voltaggio

The valley of the Lemme stream runs down from the Ligurian Apennines towards the plain of Novi Ligure, and halfway between Voltaggio and Gavi lies Carrosio. It is a small village, its houses lined up along the valley and its slopes covered in woodland, in the part of the province of Alessandria that in history, dialect and habits looks a great deal towards Genoa.

The location explains some of the interest in houses here: Genoa and the coast are not far by car, while daily life is quiet and rural. The area has village houses, detached homes and isolated country houses. For buyers, aspect matters, since the winter sun reaches the valley floor late, as do the state of the services and the distance from the stream. Climate zone E brings cold, damp winters.

Carrosio is not losing residents: in 2023 there were 492, up 2.3% on 2011, according to Istat, the national statistics office. The average age of 46.5 is lower than the provincial 48.9, and over-65s make up 23.6% against 28.6% across the province. Foreign residents account for 14.0%. Declared incomes are slightly below the provincial average.

The municipality is in seismic zone 3 on the Civil Protection department's national scale, like 127 of the 187 municipalities in the province, with an expected ground acceleration of about 0.089 g in the built-up area. For a stone house, ask whether the roof has been redone and whether floors and walls are tied together.

The Revenue Agency (Agenzia delle Entrate) cadastral maps cover the municipality and the report traces the land parcel from the address. For houses near the Lemme and its tributaries the report checks the flood-prone areas on the official maps, and on the slopes the landslide maps.

Key points

  • Lemme valley between Voltaggio and Gavi, with Genoa within driving distance.
  • Population up 2.3% since 2011, over-65s at 23.6%.
  • Seismic zone 3, expected acceleration about 0.089 g.
  • Houses near the stream: check the flood-prone areas.

Overview

Carrosio is a municipality in the province of Alessandria, in Piemonte. At the end of 2023 it had 492 residents, ranked 121 of 187 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Carrosio is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (127 of 187) 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 2.3%. The estimated average age is 47 years, lower than the province average (49). 24% of residents are over 65 (the regional figure is 27%). Foreign residents make up 14.0% of the population. On average, a household has 2.1 members.

Income and climate

In tax year 2024, taxpayers in Carrosio declared an average taxable income of 24,290 euros, in line with the province (25,143 euros). The Italian average is 24,895 euros.

Carrosio is in climate zone E, with 2,695 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 254 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Carrosio has 1 school. The Overture Maps data also lists 1 sports facility.

The data shows no pharmacies within the municipality, against a provincial average of 0.5 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 5.2% of the land in Carrosio, compared with 7.2% in the province and 6.7% in the region. In 2024 built-up land stayed almost the same.

Radon and contaminated sites

Carrosio 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 no contaminated sites in Carrosio.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Carrosio: 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 Carrosio 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 9 inhabited census areas in Carrosio. Half of the residents live in areas scoring 58 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 006035. The text on this page is generated automatically from the data.