Tadasuni: what to know before buying a home
A municipality in the province of Oristano, Sardegna. 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: Corso Impero 2, Tadasuni.
Tadasuni, a village by the waters of Lake Omodeo
Lake Omodeo, the large reservoir on the river Tirso, is the landscape that defines Tadasuni, a small village in the interior of the province of Oristano. Houses are low, often with a courtyard, and the village sits at around one hundred and eighty metres among hills and open fields. For work, schools and a big shop people go to the larger towns nearby, such as Ghilarza, and further afield to Oristano.
The climate is mild (climate zone C), so heating costs less than in the mountains. What counts more is shade and ventilation in summer and, in older houses, the condition of the roofs and damp at the base of the walls.
The population has shrunk a great deal. In 2023 Istat, Italy's national statistics office, counted 126 residents, 58 fewer than the 184 of 2011, a fall of 31.5%. Over-65s make up 39.7%, against 29.5% in the province, and the estimated average age is 55.8. Declared incomes are below the provincial average.
Earthquake hazard in Sardinia is the lowest on the scale: all 87 municipalities in the province of Oristano are in zone 4 of the Civil Protection Department's classification, and the expected ground acceleration here is about 0.050 g. Upkeep, wiring, plumbing and insulation matter more than the structure.
Near the lake and the streams that feed it, flood hazard depends on where the house stands, and the report reads it from the official maps at the address. The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps, so the land parcel can be traced from the house.
Key points
- Small village inland in the province of Oristano, near Lake Omodeo.
- 126 residents in 2023, down 31.5% since 2011.
- Over-65s at 39.7% against 29.5% in the province.
- All 87 municipalities in the province in seismic zone 4.
Overview
Tadasuni is a municipality in the province of Oristano, in Sardegna. At the end of 2023 it had 126 residents, among the smallest in the province (84 of 87).
Earthquakes
For Italy's Civil Protection Department, Tadasuni is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. All 87 municipalities in the province are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.050 g, a moderate value: the level with a 10% probability of being exceeded in 50 years, on rock.
In zone 4 the risk is low, but for an older building it is still worth asking about the state of the structure.
Population
Compared with the 2011 census, the resident population has fallen by 31.5%. The estimated average age is 56 years, higher than the province average (50). 40% of residents are over 65 (the regional figure is 27%). Foreign residents make up 3.2% of the population. On average, a household has 1.8 members.
Income and climate
In tax year 2024, taxpayers in Tadasuni declared an average taxable income of 16,065 euros, below the provincial average (19,764 euros). The Italian average is 24,895 euros.
Tadasuni is in climate zone C, with 1,207 heating degree days: heating may be switched on from 15 November to 31 March, for up to 10 hours a day. The same table puts the town hall at 180 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Tadasuni has 1 pharmacy.
The data shows no schools within the municipality, against a provincial average of 1.2 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 3.7% of the land in Tadasuni, compared with 3.4% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Tadasuni is not among the radon priority areas designated by the Regione Sardegna in 2022. Radon varies from building to building and can only be known by measuring it, especially on ground floors and in basements.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Tadasuni: 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 Tadasuni 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 3 inhabited census areas in Tadasuni. Half of the residents live in areas scoring 65 or more.
Residents by band
- fair 14.2%
- good 85.8%
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
- 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 Sardegna, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2022.
- 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 115074. The text on this page is generated automatically from the data.