Seveso: what to know before buying a home
A municipality in the province of Monza e della Brianza, Lombardia. Official data on earthquakes, population, services and transport.
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Search for an address in Seveso
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: Corso Isonzo 1, Seveso.
Seveso, the Bosco delle Querce and trains to Milan
For many people the name Seveso still brings back July 1976, when a cloud of dioxin escaped from the ICMESA plant in neighbouring Meda and contaminated part of the area. The worst-hit land was cleaned up and turned into the Bosco delle Querce, an oak wood that is now a public park. Today's Seveso is a Brianza town much like those around it, with residential districts, small industries and furniture makers.
Its strong point is the railway. In Trenord's timetable data the municipality has 2 stations served by 5 rail lines, including services to Milan, and the report works out the distance from each address to the nearest stop. By car there is the Milano-Meda expressway, which runs right through.
Seveso is growing and fairly young for Brianza: 24,023 residents at the end of 2023, up 5.7% on 2011 according to Istat, the national statistics office, with an estimated average age of 44.6 against 45.9 in the province and over-65s at 21.7%. Foreign nationals make up 8.8%. Most of the land is built up and services are thinner than the provincial average, so for a hospital and larger services people go to nearby towns.
Seismic hazard is among the lowest in Italy. Seveso is in zone 4, like 14 other municipalities in the province, with expected ground acceleration of about 0.045 g. For a flat, the energy rating, the age of the heating system and the state of the building matter more.
The Seveso stream crosses the town before reaching Milan, where its floods regularly hit the Niguarda district. Here too, close to the channel, flood hazard needs checking for the exact address. The report does this on the official maps and finds the land parcel on the cadastral maps of the Revenue Agency (Agenzia delle Entrate).
Key points
- 2 stations and 5 rail lines in Trenord's data.
- 24,023 residents, up 5.7% since 2011.
- Seismic zone 4, expected acceleration about 0.045 g.
- Near the Seveso stream, flood hazard should be checked.
Overview
Seveso is a municipality in the province of Monza e della Brianza, in Lombardia. At the end of 2023 it had 24,023 residents, ranked 10 of 55 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Seveso is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. Only 15 of 55 municipalities in the province are in zone 4.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.045 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 5.7%. The estimated average age is 45 years, in line with the province. 22% of residents are over 65 (the regional figure is 24%). Foreign residents make up 8.8% of the population. On average, a household has 2.3 members.
Income and climate
In tax year 2024, taxpayers in Seveso declared an average taxable income of 27,217 euros, below the provincial average (29,649 euros). The Italian average is 24,895 euros.
Seveso is in climate zone E, with 2,467 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 211 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Seveso has 11 schools and 6 pharmacies. The Overture Maps data also lists 9 grocery shops and supermarkets, 6 healthcare facilities, 14 sports facilities and 3 parks and green areas.
There are 0.2 healthcare facilities per 1,000 residents, fewer than the province average (0.6).
Public transport
Within the municipality there are 2 public transport stops, served by 5 train lines, 1 bus line. That is about 0.1 stops per 1,000 residents.
How built-up it is
Buildings, roads, car parks and other sealed surfaces cover 48.9% of the land in Seveso, compared with 40.9% in the province and 12.2% in the region. In 2024 built-up land grew by 1.5 hectares.
Radon and contaminated sites
Seveso 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 one contaminated site, or site still under investigation, in Seveso. 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 Seveso: 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 Seveso 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 101 inhabited census areas in Seveso. Half of the residents live in areas scoring 72 or more.
Residents by band
- fair 9.4%
- good 79.9%
- very good 10.7%
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 108040. The text on this page is generated automatically from the data.