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Gressan: 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 Gressan

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 Pila 1, Gressan.

Gressan, the slope facing Aosta that climbs to Pila

Gressan covers the slope south of the Dora Baltea river, facing Aosta, and climbs from the orchards and houses of the valley floor to the woods and mountain meadows towards Pila, the ski area above the regional capital. The municipality is a scatter of small villages, with its main village at around 600 metres. Aosta is a few minutes by car, and for many residents Gressan is effectively a residential extension of the city.

There were 3,375 residents in 2023, up 2.1% on 2011, according to Istat, the national statistics office. The average age is 45.9, lower than 47.0 for the Aosta Valley, and over-65s make up 22.3%, against 25.3% for the region. Foreign nationals are 4.5%. Average incomes are in line with the regional average, slightly above.

Buyers find detached houses and recent multi-family homes lower down, more convenient for the city, and stone houses in the higher villages, often needing renovation, with views over the valley but longer winters and harder access. The slope faces north, so in winter it gets less sun than the opposite side of the valley: it is worth viewing a house in winter too.

All 74 municipalities in the Aosta Valley are in seismic zone 3 on the Civil Protection Department's scale, and in Gressan the expected ground acceleration is about 0.096 g. With a stone village house, ask whether the roof and floors have been redone and the walls strengthened.

The climate is zone E. For landslides and flooding, the report checks the official maps for the exact address. Cadastral maps from the Revenue Agency are available.

Key points

  • Slope facing Aosta, from the valley floor up to Pila.
  • 3,375 residents in 2023, up 2.1% since 2011.
  • Seismic zone 3, like the whole Aosta Valley.
  • North-facing slope: less winter sun.

Overview

Gressan 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 3,375 residents, among the most populous in the province (8 of 74).

Earthquakes

For Italy's Civil Protection Department, Gressan 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 0.096 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 2.1%. The estimated average age is 46 years, in line with the province. 22% of residents are over 65 (the regional figure is 25%). Foreign residents make up 4.5% of the population. On average, a household has 2.1 members.

Income and climate

In tax year 2024, taxpayers in Gressan declared an average taxable income of 26,391 euros, in line with the province (26,152 euros). The Italian average is 24,895 euros.

Gressan is in climate zone E, with 2,915 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 626 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Gressan has 4 schools and 2 pharmacies. The Overture Maps data also lists 1 healthcare facility, 4 sports facilities and 2 parks and green areas.

The data shows no grocery shops and supermarkets within the municipality, against a provincial average of 0.8 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 6.3% of the land in Gressan, compared with 2.2% in the province and 2.2% in the region. In 2024 built-up land grew by 2.7 hectares.

Radon and contaminated sites

Gressan is not among the radon priority areas designated by the Regione Valle d'Aosta in 2026. According to the ISPRA map, the estimated radon emission in the municipality is 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 Gressan.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Gressan: 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 Gressan 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 44 inhabited census areas in Gressan. Half of the residents live in areas scoring 63 or more.

Residents by band

  • fair 50.2%
  • good 49.8%

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 007031. The text on this page is generated automatically from the data.