Allein: what to know before buying a home
A municipality in the province of Valle d'Aosta/Vallée d'Aoste, Valle d'Aosta/Vallée d'Aoste. Official data on earthquakes, population, services and transport.
Liveability index free for any address
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Search for an address in Allein
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: Frazione La Ville 1, Allein.
Allein, on the sunny side of the Great St Bernard valley
Allein lies in the Great St Bernard valley, which climbs from Aosta towards the tunnel and Switzerland. The village is on a sun-facing slope above a thousand metres, its houses split into small hamlets among meadows and woods. Aosta is close enough to work in town and come home in the evening, which makes a real difference compared with the more isolated side valleys.
Buyers can choose between stone-and-timber hamlet houses and more recent homes, but should look carefully at winter access, sun exposure and the heating system: the climate is classed as zone F, the coldest. In the Aosta Valley, documents and place names are often bilingual, in Italian and French, and hamlet names may appear in either form.
In 2023 Istat, the national statistics office, counted 209 residents, 39 fewer than the 248 of 2011, a fall of 15.7%. The estimated average age is 50.0, slightly above the regional 47.0, and over-65s make up 28.7%. Foreign residents account for 3.3%.
All 74 municipalities in the Aosta Valley are in seismic zone 3, and in Allein the expected ground acceleration is about 0.110 g. The risk is moderate: in older houses, look at the roof, which also has to carry snow, and at how walls and floors are tied together. On Alpine slopes the report checks the address against the official landslide maps, and Revenue Agency cadastral maps are published.
Key points
- Sunny hamlets above a thousand metres in the Great St Bernard valley.
- 209 residents in 2023, down 15.7% since 2011.
- Average age 50.0, over-65s at 28.7%.
- All 74 Aosta Valley municipalities in seismic zone 3.
Overview
Allein is a municipality in the province of Valle d'Aosta/Vallée d'Aoste, in Valle d'Aosta/Vallée d'Aoste. At the end of 2023 it had 209 residents, ranked 63 of 74 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Allein is in seismic zone 3, a zone where strong earthquakes are possible but rare. All 74 municipalities in the province are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.110 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 fallen by 15.7%. The estimated average age is 50 years, higher than the province average (47). 29% of residents are over 65 (the regional figure is 25%). Foreign residents make up 3.3% of the population. On average, a household has 1.7 members.
Income and climate
In tax year 2024, taxpayers in Allein declared an average taxable income of 20,711 euros, below the provincial average (26,152 euros). The Italian average is 24,895 euros.
Allein is in climate zone F, with 3,994 heating degree days, with no limits on when heating may be used. The same table puts the town hall at 1,190 metres above sea level.
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 5.1% of the land in Allein, compared with 2.2% in the province and 2.2% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Allein is not among the radon priority areas designated by the Regione Valle d'Aosta in 2026. 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 Allein; one has been cleaned up or closed.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Allein: 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 Allein 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 12 inhabited census areas in Allein. Half of the residents live in areas scoring 65 or more.
Residents by band
- fair 25.6%
- good 74.4%
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
- Seismic classification of municipalities, Dipartimento della Protezione Civile. Licence CC BY 4.0, updated to 2025-05.
- MPS04 seismic hazard model, INGV. Licence CC BY 4.0, 2004 model.
- Data by census section, Istat. Licence CC BY 4.0, residents at the end of 2023, compared with the 2011 census.
- Income and main IRPEF variables by municipality, MEF, Dipartimento delle Finanze. Licence CC BY 3.0 IT, tax year 2024.
- Climate zones and heating degree days of municipalities (Presidential Decree 412/1993, Annex A), Normattiva. Licence CC BY 4.0, current text.
- Land take, territorial dynamics and ecosystem services, ISPRA e SNPA. Licence CC BY 4.0, 2024 data.
- Predictive radon map by municipality, ISPRA. Licence CC BY 4.0, version 2022-11.
- Radon priority areas (Legislative Decree 101/2020), Regione Valle d'Aosta, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2026.
- Contaminated sites, ISPRA, MOSAICO - Banca dati nazionale dei siti oggetto di procedimento di bonifica. Licence CC BY 4.0, updated to 12 November 2026.
- Liveability index by census area, Vicinalia, from the data in the report sections. Licence CC BY-SA 4.0, worked out on 30 September 2026.
- List of Italian municipalities, Istat. Licence CC BY 4.0, updated to 21 February 2026.
ISTAT code 007001. The text on this page is generated automatically from the data.