Skip to content
Vicinalia
Italiano Sign up

Trezzano sul Naviglio: 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 Trezzano sul Naviglio

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 Treves Claudio 1, Trezzano sul Naviglio.

Trezzano sul Naviglio, on the Naviglio Grande and the Vigevanese

Trezzano sul Naviglio lies just outside Milan to the south-west, beyond Corsico and close to the western ring road (tangenziale Ovest). The Naviglio Grande canal runs right through it, with a towpath used by cyclists heading into the city or out towards Abbiategrasso, while the Vigevanese main road is lined with warehouses, big stores and car dealers.

Public transport is one of the main reasons people choose Trezzano. In the open timetables (GTFS data) the municipality has 32 stops served by 3 rail lines and 2 bus lines, and the station is on the line from Milan towards Albairate and Mortara. The report shows for every address how far the nearest stop is. The town is largely residential, with 1960s and 1970s blocks near the centre and newer districts; to the south begin the fields and farmsteads of the Parco Agricolo Sud Milano, a protected farming belt.

The population is growing: 21,585 residents in 2023 according to Istat, the national statistics office, up 7.8% on 2011. The estimated average age is 44.8, a little below the metropolitan area's 45.6, and foreign nationals make up 10.0%. Declared incomes are below the provincial average, which Milan itself pushes up.

Seismic hazard is low. Trezzano is in zone 4, like 73 municipalities in the Milan area, with expected ground acceleration of about 0.046 g. In a block of flats, the state of the shared parts, the service charges (spese condominiali) and the energy rating matter more, in climate zone E with cold, damp winters.

The Revenue Agency (Agenzia delle Entrate) publishes cadastral maps here and the report finds the land parcel. The area is heavily built up, and on the plain south of Milan the water table is often shallow: for cellars and underground garages, ask whether there has ever been water ingress, and check flood hazard for the address.

Key points

  • 32 stops and a station on the Milan to Mortara line.
  • Naviglio Grande canal, Vigevanese road and ring road close by.
  • Population up 7.8% since 2011, 10.0% foreign nationals.
  • Seismic zone 4, low hazard.

Overview

Trezzano sul Naviglio is a municipality in the province of Milano, in Lombardia. At the end of 2023 it had 21,585 residents, ranked 25 of 133 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Trezzano sul Naviglio 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 7.8%. The estimated average age is 45 years, in line with the province. 23% of residents are over 65 (the regional figure is 24%). Foreign residents make up 10.0% of the population. On average, a household has 2.3 members.

Income and climate

In tax year 2024, taxpayers in Trezzano sul Naviglio declared an average taxable income of 28,637 euros, below the provincial average (33,635 euros). The Italian average is 24,895 euros.

Trezzano sul Naviglio 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 116 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Trezzano sul Naviglio has 12 schools and 5 pharmacies. The Overture Maps data also lists 7 grocery shops and supermarkets, 9 healthcare facilities, 16 sports facilities and 4 parks and green areas.

There are 0.4 healthcare facilities per 1,000 residents, fewer than the province average (0.8).

Public transport

Within the municipality there are 32 public transport stops, served by 3 train lines, 2 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 40.5% of the land in Trezzano sul Naviglio, compared with 32.0% in the province and 12.2% in the region. In 2024 built-up land stayed almost the same.

Radon and contaminated sites

Trezzano sul Naviglio 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 8 contaminated sites, or sites still under investigation, in Trezzano sul Naviglio, and 14 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 Trezzano sul Naviglio: 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 Trezzano sul Naviglio 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 127 inhabited census areas in Trezzano sul Naviglio. Half of the residents live in areas scoring 77 or more.

Residents by band

  • fair 1.4%
  • good 65.7%
  • very good 32.9%

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 015220. The text on this page is generated automatically from the data.