Ayas: 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.
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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: Strada Ramey 1, Ayas.
Ayas, Champoluc and the valley below Monte Rosa
Ayas is the municipality of the Val d'Ayas, one of the side valleys of the Aosta Valley that rise towards Monte Rosa. The main village is Antagnod, at about 1,700 metres, but the best-known centre is Champoluc, the base for the lifts that link the valley to the Monte Rosa ski area. The territory is made up of scattered villages, each with its own stone and timber houses.
Buying here means entering a market tied to mountain tourism, in winter and summer. Alongside resident families there are many flats and chalets used for holidays, and villages differ a lot in exposure to the sun, distance from the lifts and access in winter. It is climate zone F, so snow, frost and heating are major items in the running costs of a house.
There were 1,369 residents in 2023, a slight rise of 0.7% on 2011. The average age is 44.4, lower than the Aosta Valley's 47.0, and 6.5% are foreign nationals.
All 74 municipalities in the region are in seismic zone 3; in Ayas the expected ground acceleration is 0.077 g. For mountain houses, look above all at the roof and snow load, as well as the walls of older buildings.
In an Alpine valley, slopes, avalanches and streams have to be considered spot by spot: the report reads gradient and the official landslide and flood maps at the address. The Revenue Agency's cadastral maps are available.
Key points
- Val d'Ayas, with Champoluc and Antagnod below Monte Rosa.
- Population up slightly, by 0.7%, since 2011.
- Average age 44.4, lower than the region.
- All 74 municipalities in the region in seismic zone 3.
Overview
Ayas 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 1,369 residents, ranked 23 of 74 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Ayas 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 0.077 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 number of residents is nearly unchanged. The estimated average age is 44 years, lower than the province average (47). 22% of residents are over 65 (the regional figure is 25%). Foreign residents make up 6.5% of the population. On average, a household has 2.1 members.
Income and climate
In tax year 2024, taxpayers in Ayas declared an average taxable income of 24,660 euros, below the provincial average (26,152 euros). The Italian average is 24,895 euros.
Ayas is in climate zone F, with 4,781 heating degree days, with no limits on when heating may be used. The same table puts the town hall at 1,699 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Ayas has 2 schools and 2 pharmacies. The Overture Maps data also lists 1 grocery shop, 5 sports facilities and 1 green area.
The data shows no healthcare facilities 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 1.2% of the land in Ayas, 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
Ayas 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 one contaminated site, or site still under investigation, in Ayas, and 2 more have been cleaned up or closed. 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 Ayas: 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 Ayas 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 46 inhabited census areas in Ayas. Half of the residents live in areas scoring 66 or more.
Residents by band
- fair 28.7%
- good 71.3%
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.
- Places, Overture Maps Foundation. Licence CDLA Permissive 2.0 and others depending on provider, release 2026-10-21.0.
- 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 007007. The text on this page is generated automatically from the data.