Ollastra: what to know before buying a home
A municipality in the province of Oristano, Sardegna. Official data on earthquakes, population, services and transport.
Liveability index free for any address
Land sheet 6 free checks
Search for an address in Ollastra
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 Antonio Gramsci 1, Ollastra.
Ollastra, the Tirso plain inland from Oristano
Ollastra is a lowland village inland from Oristano, on the plain crossed by the river Tirso, just a few metres above sea level. It is surrounded by farmland and pasture, and the village is compact, with low one or two-storey houses and inner courtyards in the traditional lowland Sardinian style.
Oristano is close and is the reference for work, secondary schools, the hospital and shopping; the coast of the gulf is a short drive away. Buyers mainly find detached houses, often with a courtyard or some land, and old houses built of sun-dried earth bricks to restore, which need specific care against damp. Declared incomes are slightly below the provincial average. The climate zone is C, with mild winters.
There were 1,103 residents in 2023, down 12.1% since 2011. The average age is 48.2, a little lower than the provincial figure (49.8), and over-65s are 26.8% against 29.5%. Foreign nationals are few, at 0.9%.
Earthquake risk is at the bottom of the scale: all 87 municipalities in the province of Oristano are in seismic zone 4, with an expected ground acceleration of 0.050 g. On the plain, water deserves more attention: how close the house is to the Tirso and to channels should be checked for the address on the official flood maps.
The Revenue Agency (Agenzia delle Entrate) publishes cadastral maps, and the report traces the address to its land parcel, which helps you see the boundaries and buildings of a house with land.
Key points
- Tirso plain, inland from Oristano.
- All 87 municipalities around Oristano in seismic zone 4.
- Residents down 12.1% since 2011.
- Flood risk worth checking for the address, near the river.
Overview
Ollastra is a municipality in the province of Oristano, in Sardegna. At the end of 2023 it had 1,103 residents, ranked 36 of 87 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Ollastra 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 12.1%. The estimated average age is 48 years, lower than the province average (50). 27% of residents are over 65 (the regional figure is 27%). Foreign residents make up 0.9% of the population. On average, a household has 2.4 members.
Income and climate
In tax year 2024, taxpayers in Ollastra declared an average taxable income of 18,302 euros, below the provincial average (19,764 euros). The Italian average is 24,895 euros.
Ollastra is in climate zone C, with 1,006 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 23 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Ollastra has 3 schools and 1 pharmacy.
The data shows no grocery shops and supermarkets within the municipality, against a provincial average of 0.9 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 Ollastra, compared with 3.4% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Ollastra 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 Ollastra: 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 Ollastra 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 4 inhabited census areas in Ollastra. Half of the residents live in areas scoring 67 or more.
Residents by band
- fair 33.0%
- good 67.0%
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 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 115044. The text on this page is generated automatically from the data.