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Bollate: what to know before buying a home

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

Liveability index free for any address

Search for an address in Bollate

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 Repubblica 1, Bollate.

Bollate, the Ferrovie Nord line and the villa at Castellazzo

The train is why many people choose Bollate. The town lies north-west of Milan on the Ferrovie Nord line towards Saronno, and the public timetables list 55 stops served by 4 rail lines and 3 bus lines. Bollate Centro and Bollate Nord stations get you into the city quickly, and a home within walking distance of either is worth more: the report measures that walk for every address.

Bollate has several distinct parts. Besides the centre there are Ospiate, Cascina del Sole and Castellazzo, home to Villa Arconati and its large gardens. Fields and green areas linked to the Groane regional park still separate the districts, so parts of the town feel less urban than you might expect this close to Milan.

Istat, the national statistics office, recorded 36,323 residents in 2023, up 2.2% since 2011. The population is a little older than that of the metropolitan city, with 25.1% over 65 against 23.0% and a mean age of 46.9. Foreign residents make up 8.0%. Declared incomes are below the provincial average, which Milan itself pushes up a lot.

The earthquake picture is reassuring: the Civil Protection Department places Bollate in seismic zone 4, the lowest, like 72 other municipalities in the province, with an expected acceleration of about 0.046 g. In the flats and terraced houses built between the 1960s and 1990s, insulation, windows and the boiler matter more, as winters on the plain are cold and damp.

The Revenue Agency's cadastral maps are available and the report reaches the land parcel. Flood hazard depends on the exact spot and is checked for the address, along with the local price band.

Key points

  • 55 stops and 4 Ferrovie Nord rail lines towards Milan.
  • Distinct districts: Ospiate, Cascina del Sole, Castellazzo with Villa Arconati.
  • 36,323 residents, up 2.2% since 2011.
  • Seismic zone 4, the lowest in the national classification.

Overview

Bollate is a municipality in the province of Milano, in Lombardia. At the end of 2023 it had 36,323 residents, among the most populous in the province (12 of 133).

Earthquakes

For Italy's Civil Protection Department, Bollate is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. Most municipalities in the province (73 of 133) are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.046 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 grown by 2.2%. The estimated average age is 47 years, in line with the province. 25% of residents are over 65 (the regional figure is 24%). Foreign residents make up 8.0% of the population. On average, a household has 2.2 members.

Income and climate

In tax year 2024, taxpayers in Bollate declared an average taxable income of 27,887 euros, below the provincial average (33,635 euros). The Italian average is 24,895 euros.

Bollate is in climate zone E, with 2,404 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 156 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Bollate has 21 schools and 11 pharmacies. The Overture Maps data also lists 10 grocery shops and supermarkets, 33 healthcare facilities, 23 sports facilities and 8 parks and green areas.

There are 0.9 healthcare facilities per 1,000 residents, more than the province average (0.8).

Public transport

Within the municipality there are 55 public transport stops, served by 4 train lines, 3 bus lines. That is about 1.5 stops per 1,000 residents.

How built-up it is

Buildings, roads, car parks and other sealed surfaces cover 39.3% of the land in Bollate, compared with 32.0% in the province and 12.2% in the region. In 2024 built-up land grew by 9.5 hectares.

Radon and contaminated sites

Bollate 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 6 contaminated sites, or sites still under investigation, in Bollate, and 12 more have been cleaned up or closed. The report tells you whether one is close to the address.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Bollate: 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 Bollate 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 66 inhabited census areas in Bollate. Half of the residents live in areas scoring 74 or more.

Residents by band

  • fair 5.9%
  • good 79.2%
  • very good 14.8%

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 015027. The text on this page is generated automatically from the data.