San Nicolò Gerrei: what to know before buying a home
A municipality in the province of Cagliari, Sardegna. Official data on earthquakes, population, services and transport.
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Search for an address in San Nicolò Gerrei
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 Umberto Primo 1, San Nicolò Gerrei.
San Nicolò Gerrei, hills and woods of the Gerrei
San Nicolò Gerrei is a village in the Gerrei, a historical district of hills and woodland north-east of Cagliari. The centre sits at about 370 metres, in an area of hills, scrub and pasture where villages are far apart and linked by long, winding roads. For hospital care, offices and secondary schools, people drive towards Cagliari or the larger towns of the area.
In 2023 there were 727 residents, 14.1% fewer than in 2011 (Istat, the national statistics office). The population is older than the provincial average: average age 49.3 against 48.1, over-65s at 30.8% against 25.7%. Households average 2.10 people. Declared incomes are below the provincial average.
The climate is one of the advantages: this is climate zone C, with mild winters and modest heating needs, while summers are hot. Buyers will find traditional village houses, often with a courtyard, and a few newer homes. The useful checks are the usual ones for older houses: roof, damp in the walls and services, plus shade and ventilation for the summer.
There are no particular seismic concerns. All 70 municipalities in the province are in seismic zone 4, the lowest, and the expected ground acceleration here is about 0.050 g.
The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps for San Nicolò Gerrei, and the report traces the address to its land parcel. For houses on slopes or near streams, the report also shows the official landslide and flood maps.
Key points
- Gerrei village, hills and scrub north-east of Cagliari.
- 727 residents, down 14.1% since 2011.
- Over-65s at 30.8%, against 25.7% in the province.
- Climate zone C and seismic zone 4.
Overview
San Nicolò Gerrei is a municipality in the province of Cagliari, in Sardegna. At the end of 2023 it had 727 residents, among the smallest in the province (64 of 70).
Earthquakes
For Italy's Civil Protection Department, San Nicolò Gerrei is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. All 70 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 14.1%. The estimated average age is 49 years, in line with the province. 31% of residents are over 65 (the regional figure is 27%). Foreign residents make up 0.0% of the population. On average, a household has 2.1 members.
Income and climate
In tax year 2024, taxpayers in San Nicolò Gerrei declared an average taxable income of 15,257 euros, below the provincial average (19,085 euros). The Italian average is 24,895 euros.
San Nicolò Gerrei is in climate zone C, with 1,339 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 367 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, San Nicolò Gerrei has 2 schools and 1 pharmacy.
The data shows no grocery shops and supermarkets within the municipality, against a provincial average of 0.7 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 1.2% of the land in San Nicolò Gerrei, compared with 3.4% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
San Nicolò Gerrei 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 San Nicolò Gerrei: 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 San Nicolò Gerrei 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 6 inhabited census areas in San Nicolò Gerrei. Half of the residents live in areas scoring 65 or more.
Residents by band
- fair 32.5%
- good 67.5%
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 118043. The text on this page is generated automatically from the data.