Erto e Casso: what to know before buying a home
A municipality in the province of Pordenone, Friuli-Venezia Giulia. 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: Via Roma 1, Erto e Casso.
Erto e Casso, the Vajont valley between Friuli and Cadore
Erto e Casso lies in the Vajont valley, at the western end of the province of Pordenone, on the border with the province of Belluno. The municipality has two main centres: Erto, with its old village of stone houses packed against the slope and a newer part lower down, and Casso, clinging to the mountainside above the valley. All around are the mountains of the Dolomiti Friulane nature park, with woods, scree and rock faces.
For services you go down towards Longarone and the Piave valley, with the railway and connections to Belluno, or towards the Valcellina and Maniago. It is climate zone F, with long, snowy winters. Homes range from stone buildings in the old village, many needing restoration, to newer houses, and there are holiday homes too.
Istat, the national statistics office, counted 362 residents in 2023, 6.5% fewer than the 387 of 2011. The estimated average age is 48.8, against 46.6 in the province of Pordenone, and over-65s make up 27.3%. Households average 1.90 people and declared incomes are below the provincial average.
Western Friuli is a seismic area: Erto e Casso is in seismic zone 2 on the Civil Protection Department's scale, with 26 other municipalities in the province, while 10 are in zone 3, and expected ground acceleration is about 0.208 g. For stone houses in the old village, a structural survey is essential before any project. On the steep slopes, the official maps of landslides and rockfall should be read for the address, spot by spot.
Revenue Agency (Agenzia delle Entrate) cadastral maps are published and the report finds the land parcel.
Key points
- Vajont valley municipality, between Friuli and Belluno province.
- 362 residents in 2023, down 6.5% since 2011.
- Seismic zone 2, expected acceleration about 0.208 g.
- Stone houses in the old village: a structural survey is essential.
Overview
Erto e Casso is a municipality in the province of Pordenone, in Friuli-Venezia Giulia. At the end of 2023 it had 362 residents, among the smallest in the province (45 of 50).
Earthquakes
For Italy's Civil Protection Department, Erto e Casso is in seismic zone 2, a zone where strong earthquakes are possible. Most municipalities in the province (27 of 50) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.208 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Erto e Casso, the building matters a great deal: ask for the design year, whether it met the 2008 seismic standards, and whether any seismic retrofit has been carried out.
Population
Compared with the 2011 census, the resident population has fallen by 6.5%. The estimated average age is 49 years, higher than the province average (47). 27% of residents are over 65 (the regional figure is 27%). Foreign residents make up 2.2% of the population. On average, a household has 1.9 members.
Income and climate
In tax year 2024, taxpayers in Erto e Casso declared an average taxable income of 22,166 euros, below the provincial average (25,584 euros). The Italian average is 24,895 euros.
Erto e Casso is in climate zone F, with 3,757 heating degree days, with no limits on when heating may be used. The same table puts the town hall at 775 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Erto e Casso has 2 schools. The Overture Maps data also lists 1 grocery shop.
The data shows no pharmacies within the municipality, against a provincial average of 0.3 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 0.9% of the land in Erto e Casso, compared with 8.5% in the province and 8.1% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Erto e Casso is not among the radon priority areas designated by the Regione Friuli Venezia Giulia in 2024. According to the ISPRA map, the estimated radon emission in the municipality is medium. 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 Erto e Casso.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Erto e Casso: 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 Erto e Casso 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 Erto e Casso. Half of the residents live in areas scoring 59 or more.
Residents by band
- fair 98.9%
- good 1.1%
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 Friuli Venezia Giulia, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2024.
- 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 093019. The text on this page is generated automatically from the data.