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Oyace: 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

Search for an address in Oyace

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 Le Voisinal 1, Oyace.

Oyace, halfway up the Valpelline

The Valpelline branches off the Great St Bernard valley a little above Aosta and climbs between high mountains; Oyace occupies its central stretch, above thirteen hundred metres. The municipality is divided into small hamlets on both sides of the valley, with hay meadows, larch woods and the Buthier stream at the bottom. Above the main village stands the Tour de Bracca, a medieval tower.

Oyace is a true mountain municipality, where life follows the seasons. In winter, in climate zone F, snow and frost are normal and the only road out is the one down the valley to Aosta, where jobs, secondary schools and the hospital are. In summer the valley fills with walkers and holiday-home owners. Anyone buying a stone hamlet house should expect insulation work and a heating system suited to the altitude; anyone buying a newer flat should look at running costs and access in the cold months.

The age profile of residents is in line with the rest of the region. There were 202 residents in 2023, 23 fewer than the 225 of 2011 (a fall of 10.2%), but the estimated average age, 47.4, is close to the regional 47.0, and over-65s make up 24.3%, against 25.3% across the Aosta Valley.

The whole Aosta Valley, 74 municipalities, is in seismic zone 3; in Oyace the expected ground acceleration is about 0.110 g. The report reads the official landslide and flood maps for the address, useful on steep slopes and near the stream. Revenue Agency cadastral maps are published.

Key points

  • Hamlets above thirteen hundred metres in the heart of the Valpelline.
  • 202 residents in 2023, down 10.2% since 2011.
  • Over-65s at 24.3%, against 25.3% in the region.
  • Whole region in seismic zone 3, about 0.110 g here.

Overview

Oyace 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 202 residents, ranked 64 of 74 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Oyace 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 10.2%. The estimated average age is 47 years, in line with the province. 24% of residents are over 65 (the regional figure is 25%). Foreign residents make up 2.0% of the population. On average, a household has 2.0 members.

Income and climate

In tax year 2024, taxpayers in Oyace declared an average taxable income of 22,121 euros, below the provincial average (26,152 euros). The Italian average is 24,895 euros.

Oyace is in climate zone F, with 4,313 heating degree days, with no limits on when heating may be used. The same table puts the town hall at 1,377 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 0.7% of the land in Oyace, compared with 2.2% in the province and 2.2% in the region. In 2024 built-up land grew by 1.3 hectares.

Radon and contaminated sites

Oyace is one of the municipalities designated as a radon priority area by the Regione Valle d'Aosta in 2026. According to the ISPRA map, the estimated radon emission in the municipality is very high. 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 Oyace.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Oyace: 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 Oyace 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 8 inhabited census areas in Oyace. Half of the residents live in areas scoring 61 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 007047. The text on this page is generated automatically from the data.