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Castell'Alfero: what to know before buying a home

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

Liveability index free for any address

Search for an address in Castell'Alfero

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 Statale 1, Castell'Alfero.

Castell'Alfero, the Monferrato hills above Asti

Callianetto, one of the hamlets of Castell'Alfero, is traditionally the home of Gianduja, the Piedmontese carnival mask. The municipality lies in the Monferrato hills north of Asti, about fifteen minutes from the city by road, with its main village built around the castle and hamlets scattered among vineyards, hazelnut orchards and woods.

Being close to Asti makes it a residential place: many residents work in the city or on the plain and choose a house with a garden in the hills here. The market includes villas and detached houses built from the 1970s onwards, houses in the old centre and hillside farmhouses, some restored. With a farmhouse, check access, utility connections and the state of the roofs; with a village house, insulation and systems. Climate zone E brings cold, foggy winters.

Istat, the national statistics office, counts 2,603 residents in 2023, down 5.3% on 2011. The average age of 48.4 is close to the 47.9 of the province of Asti, and 26.7% of residents are over 65. Foreign residents make up 5.0%. Declared incomes are above the provincial average.

Earthquake risk is low: Castell'Alfero is in seismic zone 4, with an expected acceleration of 0.040 g. In old brick houses, damp, the roof and the state of the floors matter more.

Revenue Agency cadastral maps are published and the report traces the address back to the land parcel. The Monferrato hills have soils that vary a lot from one slope to another, so gradient and official maps should be read for the exact spot, which is what the report does.

Key points

  • Monferrato hills, fifteen minutes from Asti
  • Callianetto, the hamlet linked to the Gianduja mask
  • Incomes above the provincial average, average age 48.4
  • Seismic zone 4, expected acceleration 0.040 g

Overview

Castell'Alfero is a municipality in the province of Asti, in Piemonte. At the end of 2023 it had 2,603 residents, among the most populous in the province (11 of 117).

Earthquakes

For Italy's Civil Protection Department, Castell'Alfero is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. Most municipalities in the province (113 of 117) are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.040 g, a low value: the level with a 10% probability of being exceeded in 50 years, on rock.

In zone 4 the risk is low, but for an older building it is still worth asking about the state of the structure.

Population

Compared with the 2011 census, the resident population has fallen by 5.3%. The estimated average age is 48 years, in line with the province. 27% of residents are over 65 (the regional figure is 27%). Foreign residents make up 5.0% of the population. On average, a household has 2.3 members.

Income and climate

In tax year 2024, taxpayers in Castell'Alfero declared an average taxable income of 26,416 euros, above the provincial average (24,302 euros). The Italian average is 24,895 euros.

Castell'Alfero is in climate zone E, with 2,680 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 235 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Castell'Alfero has 3 schools and 1 pharmacy. The Overture Maps data also lists 3 grocery shops and supermarkets, 1 healthcare facility and 2 sports facilities.

There are 1.2 grocery shops and supermarkets per 1,000 residents, more than the province average (0.6).

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 8.6% of the land in Castell'Alfero, compared with 7.3% in the province and 6.7% in the region. In 2024 built-up land stayed almost the same.

Radon and contaminated sites

Castell'Alfero 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 Castell'Alfero.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Castell'Alfero: 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 Castell'Alfero 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 47 inhabited census areas in Castell'Alfero. Half of the residents live in areas scoring 60 or more.

Residents by band

  • modest 0.6%
  • fair 71.8%
  • good 27.5%

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 005025. The text on this page is generated automatically from the data.