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San Siro: what to know before buying a home

A municipality in the province of Como, Lombardia. Official data on earthquakes, population, services and transport.

Liveability index free for any address

Search for an address in San Siro

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 Statale 1, San Siro.

San Siro, the western shore of Lake Como

San Siro is a municipality on the western shore of Lake Como, north of Menaggio, created in 2003 by merging Santa Maria Rezzonico and Sant'Abbondio. It is a strip of hamlets between the lake and the mountains, linked by the Regina road along the shore. The higher hamlets have wide views over the water, while those on the shore have small harbours and beaches.

Buyers find stone houses in the old hamlets, villas and detached homes on the terraces, and flats with lake views. The roads climbing from the hamlets are narrow and steep, so check parking and car access before falling for the view. The report measures slope and elevation for the address and checks the official landslide and flood maps, useful both on the slopes and near the shore.

Istat, the national statistics office, counts 1,681 residents in 2023, down 4.4% from 1,758 in 2011. The average age is 49.6, above 46.3 for the province, with over-65s at 27.8%. Households are small at 2.00 people on average, and foreign residents are 5.9%. Declared incomes are below the provincial average.

All 147 municipalities in the province of Como are in seismic zone 4, the lowest class in the Civil Protection classification; here the expected ground acceleration is 0.041 g. In houses near the lake, damp and the state of walls set against the hillside matter most. The Revenue Agency publishes the cadastral maps and the report traces the parcel.

Key points

  • Lakeside hamlets north of Menaggio, merged in 2003.
  • Steep roads: check access and parking.
  • All 147 municipalities in Como province in seismic zone 4.
  • Population down 4.4% since 2011.

Overview

San Siro is a municipality in the province of Como, in Lombardia. At the end of 2023 it had 1,681 residents, ranked 86 of 147 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, San Siro is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. All 147 municipalities in the province are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.041 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 4.4%. The estimated average age is 50 years, higher than the province average (46). 28% of residents are over 65 (the regional figure is 24%). Foreign residents make up 5.9% of the population. On average, a household has 2.0 members.

Income and climate

In tax year 2024, taxpayers in San Siro declared an average taxable income of 20,122 euros, below the provincial average (26,761 euros). The Italian average is 24,895 euros.

San Siro is in climate zone E, with 2,246 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 220 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, San Siro has 2 schools and 1 pharmacy.

The data shows no grocery shops and supermarkets within the municipality, against a provincial average of 0.5 per 1,000 residents.

Public transport

The open timetables available for the area do not list any stops within the territory of San Siro.

How built-up it is

Buildings, roads, car parks and other sealed surfaces cover 4.7% of the land in San Siro, compared with 12.3% in the province and 12.2% in the region. In 2024 built-up land stayed almost the same.

Radon and contaminated sites

San Siro 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 medium. 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 Siro.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within San Siro: 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 Siro 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 27 inhabited census areas in San Siro. Half of the residents live in areas scoring 54 or more.

Residents by band

  • modest 0.2%
  • fair 99.8%

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

ISTAT code 013248. The text on this page is generated automatically from the data.