San Marzano Oliveto: what to know before buying a home
A municipality in the province of Asti, Piemonte. Official data on earthquakes, population, services and transport.
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Search for an address in San Marzano Oliveto
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: Regione Leiso 1, San Marzano Oliveto.
San Marzano Oliveto, vineyards between Canelli and Nizza Monferrato
Between Canelli and Nizza Monferrato, in the south of the province of Asti, the hills are almost all vineyard, and San Marzano Oliveto sits right in the middle of them at around 300 metres. The main grapes are moscato and barbera, and much of the village lives off wineries and work in the vineyards.
House hunters will find two-storey village houses, farmhouses with some land and a few detached homes, often with views over the hills. For secondary schools, shops and services people go to Canelli or Nizza, and for the hospital and larger offices towards Asti, always by car. Hill roads are narrow and can ice over in winter, so think about how you would reach the house in the cold months. The climate zone is E.
In 2023 there were 994 residents, down 6.8% on 2011. The average age (47.3) is slightly below the provincial figure (47.9), and the same goes for over-65s, at 26.0% against 27.3%. Foreign residents are 6.1% and declared incomes are below the provincial average.
Earthquake hazard is low: San Marzano Oliveto is in seismic zone 4, like almost all the province of Asti, along with 112 other municipalities, and the expected ground acceleration is 0.047 g. In farmhouses, the stability of the surrounding ground, the roof and damp in the walls matter more.
The report goes from the address to the plot using Revenue Agency (Agenzia delle Entrate) maps, and there it checks the slope and the official landslide maps, which on vineyard hills should be looked at for each individual piece of land.
Key points
- Village among moscato and barbera vineyards, between Canelli and Nizza.
- 994 residents in 2023, down 6.8% since 2011.
- Seismic zone 4, expected acceleration 0.047 g.
- Farmhouses and village homes: check slope and access.
Overview
San Marzano Oliveto is a municipality in the province of Asti, in Piemonte. At the end of 2023 it had 994 residents, ranked 37 of 117 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, San Marzano Oliveto is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. Most municipalities in the province (113 of 117) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.047 g, a low 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 6.8%. The estimated average age is 47 years, in line with the province. 26% of residents are over 65 (the regional figure is 27%). Foreign residents make up 6.1% of the population. On average, a household has 2.3 members.
Income and climate
In tax year 2024, taxpayers in San Marzano Oliveto declared an average taxable income of 22,176 euros, below the provincial average (24,302 euros). The Italian average is 24,895 euros.
San Marzano Oliveto is in climate zone E, with 2,735 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 301 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, San Marzano Oliveto has 2 schools and 1 pharmacy. The Overture Maps data also lists 2 grocery shops and supermarkets.
The data shows no healthcare facilities within the municipality, against a provincial average of 0.6 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 8.3% of the land in San Marzano Oliveto, compared with 7.3% in the province and 6.7% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
San Marzano Oliveto is not among the radon priority areas designated by the Regione Piemonte in 2023. According to the ISPRA map, the estimated radon emission in the municipality is low. 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 San Marzano Oliveto.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within San Marzano Oliveto: 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 Marzano Oliveto 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 21 inhabited census areas in San Marzano Oliveto. Half of the residents live in areas scoring 56 or more.
Residents by band
- modest 0.3%
- fair 99.7%
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 005100. The text on this page is generated automatically from the data.