Osasio: what to know before buying a home
A municipality in the province of Torino, Piemonte. 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 Peschiere 1, Osasio.
Osasio, farmland on the plain south of Turin
Fields of cereals and fodder crops, large farmsteads and a compact village centre: that is Osasio, a farming municipality on the flat land south of Turin, in the Carmagnola area. Hills and mountains are on the horizon, but life here is on the flat.
Many residents work outside the village. Carmagnola is close by, with its railway station, shops and secondary schools, and Turin can be reached by car or by combining car and train. The village has the basics and little more. House hunters will find detached and semi-detached houses from recent decades next to historic farmsteads, some divided into several homes. In a divided farmstead, get courtyards, rights of way and shared parts clear before signing the deed.
In 2023 Osasio had 919 residents, up 0.7% on 2011, according to Istat, the national statistics office. The population is younger than in the Metropolitan City of Turin as a whole: the average age is 45.9 against 47.4, and over-65s make up 24.5% against 26.4%. Households average 2.29 people and foreign residents account for 4.9%. Declared incomes are close to the provincial figure.
Osasio is in seismic zone 3 under the Civil Protection classification, like 271 of the 312 municipalities around Turin, with an expected ground acceleration of 0.073 g. The practical advice is to check the condition of roofs and floors in older buildings.
On the plain, what counts is how close you are to canals, irrigation ditches and streams, so the report reads the official flood maps for the individual address. The Revenue Agency (Agenzia delle Entrate) publishes cadastral maps here, and the report goes from the house number to the land parcel.
Key points
- Farming village on the plain south of Turin, near Carmagnola.
- Population up 0.7% since 2011.
- Average age 45.9, against 47.4 around Turin.
- Seismic zone 3, expected acceleration 0.073 g.
Overview
Osasio is a municipality in the province of Torino, in Piemonte. At the end of 2023 it had 919 residents, ranked 205 of 312 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Osasio is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (271 of 312) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.073 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 46 years, in line with the province. 24% of residents are over 65 (the regional figure is 27%). Foreign residents make up 4.9% of the population. On average, a household has 2.3 members.
Income and climate
In tax year 2024, taxpayers in Osasio declared an average taxable income of 27,076 euros, in line with the province (27,231 euros). The Italian average is 24,895 euros.
Osasio is in climate zone E, with 2,612 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 241 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Osasio has 2 schools and 1 pharmacy.
The data shows no grocery shops and supermarkets 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 10.0% of the land in Osasio, compared with 8.6% in the province and 6.7% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Osasio is not among the radon priority areas designated by the Regione Piemonte in 2023. 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 Osasio.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Osasio: 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 Osasio 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 5 inhabited census areas in Osasio. Half of the residents live in areas scoring 55 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
- 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 Piemonte, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2023.
- Contaminated sites, Regione Piemonte, Anagrafe regionale dei siti contaminati (ASCO). Licence CC BY 4.0, updated to 9 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 001174. The text on this page is generated automatically from the data.