Oliva Gessi: what to know before buying a home
A municipality in the province of Pavia, Lombardia. Official data on earthquakes, population, services and transport.
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Search for an address in Oliva Gessi
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 Centro 1, Oliva Gessi.
Oliva Gessi, on the first hills of the Oltrepò Pavese
Where the plain south of the Po begins to rise into the first hills of the Oltrepò Pavese, Oliva Gessi occupies a low ridge under three hundred metres, with a small centre and houses scattered among fields and woods. It is a tiny municipality, and daily life relies on the larger towns at the foot of the hills, which have shops, schools, doctors and the railway. Pavia, the provincial capital, is on the other side of the Po.
In 2023 Istat, Italy's national statistics office, counted 158 residents, 15 fewer than the 173 of 2011, a fall of 8.7%. The population is elderly: the estimated average age is 56.4, against 47.1 in the province of Pavia, and over-65s make up 36.7%. Declared incomes are close to the provincial average.
For buyers, a position on the first hills has a practical advantage: the plain and the main roads are close, and winter driving is easier than further up. Houses are mostly country homes or rustic buildings, often with land. Check the structure, roof and damp, and work out what it costs to heat a large building in climate zone E, with foggy, damp winters.
Oliva Gessi is in seismic zone 3 on the Civil Protection Department's scale, along with 156 other municipalities in the province, with an expected ground acceleration of about 0.092 g. In the Oltrepò hills the thing to watch is the slopes, which in some cases shift after long spells of rain, and the report checks the official landslide and flood maps for the exact address. Revenue Agency cadastral maps are published, and the report traces the land parcel.
Key points
- Municipality on the first hills of the Oltrepò Pavese, above the plain.
- 158 residents in 2023, down 8.7% since 2011.
- Average age 56.4, against 47.1 in the province.
- Seismic zone 3, expected acceleration about 0.092 g.
Overview
Oliva Gessi is a municipality in the province of Pavia, in Lombardia. At the end of 2023 it had 158 residents, among the smallest in the province (179 of 184).
Earthquakes
For Italy's Civil Protection Department, Oliva Gessi is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (157 of 184) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.092 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 resident population has fallen by 8.7%. The estimated average age is 56 years, higher than the province average (47). 37% of residents are over 65 (the regional figure is 24%). Foreign residents make up 5.7% of the population. On average, a household has 1.9 members.
Income and climate
In tax year 2024, taxpayers in Oliva Gessi declared an average taxable income of 25,671 euros, in line with the province (26,290 euros). The Italian average is 24,895 euros.
Oliva Gessi is in climate zone E, with 2,944 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 275 metres above sea level.
Public transport
The open timetables available for the area do not list any stops within the territory of Oliva Gessi.
How built-up it is
Buildings, roads, car parks and other sealed surfaces cover 5.6% of the land in Oliva Gessi, compared with 9.6% in the province and 12.2% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Oliva Gessi is not among the radon priority areas designated by the Regione Lombardia 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 Oliva Gessi.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Oliva Gessi: 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 Oliva Gessi 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 9 inhabited census areas in Oliva Gessi. Half of the residents live in areas scoring 57 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.
- Public transport timetables (GTFS): Trenord, Regione Lombardia - Trenord, orari ferroviari (GTFS). Licence CC BY 4.0, version 20261111.
- 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 Lombardia, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2023.
- Contaminated sites, Regione Lombardia. Licence CC0 1.0 (pubblico dominio), updated to 15 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 018105. The text on this page is generated automatically from the data.