Siziano: 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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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 Roma 1, Siziano.
Siziano, northern Pavia province looking towards Milan
Siziano is in the province of Pavia, but for the people who live there the point of reference is often Milan. The municipality lies in the northern part of the Pavia area, on the border with the metropolitan city, on a plain of fields and farmsteads crossed by the provincial roads linking the two cities.
Over recent decades new residential neighbourhoods have appeared, with production and logistics sites around them. Timetable data show no train stops in the municipality: for Milan people drive, or take the train from stations in neighbouring towns on the line to Pavia. Try the journey at rush hour before deciding.
Growth has been strong: 6,674 residents at the end of 2023 according to Istat, the national statistics office, up 14.9% on 2011. The population is younger than the province of Pavia's, with an estimated average age of 43.5 against 47.1 and over-65s at 19.6% against 25.2%. Foreign residents make up 8.1%. Declared incomes are above the provincial average.
For earthquakes Siziano is in seismic zone 3 of the Civil Protection classification, like 157 of the 184 municipalities in the province, and expected ground acceleration is low, about 0.057 g. In recent homes it is more useful to check the energy rating, any building defects and the builder's warranties; in a converted farmstead, how the roof and floors were rebuilt.
The countryside is watered by irrigation ditches and canals, and the lowest areas deserve a careful look. The report checks the official flood maps for the address and finds the plot on the Revenue Agency (Agenzia delle Entrate) cadastral maps.
Key points
- Northern Pavia province, on the border with metropolitan Milan.
- Population up 14.9% since 2011.
- Over-65s at 19.6%, against 25.2% in the province.
- Seismic zone 3, expected acceleration about 0.057 g.
Overview
Siziano is a municipality in the province of Pavia, in Lombardia. At the end of 2023 it had 6,674 residents, among the most populous in the province (13 of 184).
Earthquakes
For Italy's Civil Protection Department, Siziano 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 0.057 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 grown by 14.9%. The estimated average age is 44 years, lower than the province average (47). 20% of residents are over 65 (the regional figure is 24%). Foreign residents make up 8.1% of the population. On average, a household has 2.3 members.
Income and climate
In tax year 2024, taxpayers in Siziano declared an average taxable income of 29,234 euros, above the provincial average (26,290 euros). The Italian average is 24,895 euros.
Siziano is in climate zone E, with 2,601 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 93 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Siziano has 5 schools and 2 pharmacies. The Overture Maps data also lists 3 grocery shops and supermarkets, 5 healthcare facilities, 5 sports facilities and 1 green area.
There are 0.3 pharmacies per 1,000 residents, fewer than the province average (0.4).
Public transport
The open timetables available for the area do not list any stops within the territory of Siziano.
How built-up it is
Buildings, roads, car parks and other sealed surfaces cover 20.3% of the land in Siziano, compared with 9.6% in the province and 12.2% in the region. In 2024 built-up land grew by 0.9 hectares.
Radon and contaminated sites
Siziano is not among the radon priority areas designated by the Regione Lombardia in 2023. 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 open contaminated sites in Siziano; one has been cleaned up or closed.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Siziano: 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 Siziano 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 29 inhabited census areas in Siziano. Half of the residents live in areas scoring 74 or more.
Residents by band
- modest 1.8%
- fair 6.6%
- good 91.7%
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.
- 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 018150. The text on this page is generated automatically from the data.