Arenzano: what to know before buying a home
A municipality in the province of Genova, Liguria. Official data on earthquakes, population, services and transport.
Liveability index free for any address
Land sheet 6 free checks
Search for an address in Arenzano
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 Guglielmo Marconi 1, Arenzano.
Arenzano, a Riviera town below the Beigua heights
Arenzano lies on the Riviera di Ponente, the coast west of Genoa, between Genova Voltri and Cogoleto, on a small coastal plain backed by mountains that climb steeply towards the Beigua Regional Park. In the centre is the park of Villa Negrotto Cambiaso, which houses the town hall; on the hill above the town stands the sanctuary of the Infant Jesus of Prague, a pilgrimage site for the whole of Liguria.
Genoa is close and easy to reach: the station is on the Genoa to Ventimiglia line, and the A10 motorway has a junction at Arenzano itself. That is why people working in the city have long chosen to live here by the sea. Besides the old centre there is the Pineta di Arenzano, a leafy district of villas and apartment blocks built in the second half of the twentieth century. Many homes are second homes, and the services show it: 105 bars and restaurants and 27 sports facilities, far above the provincial average per resident.
In 2023 there were 11,150 residents, down 3.7% on 2011 according to Istat, the national statistics office. The population is old even by the standards of Liguria, Italy's oldest region: an average age of 50.3, with over-65s at 31.7% against 29.0% regionally. Households are small, 2.00 people on average. Average declared incomes are well above the metropolitan area.
Earthquake hazard is low. Arenzano is in zone 4 on the Civil Protection Department's scale, while most municipalities in the Genoa area, 64 of them, are in zone 3; the expected ground acceleration in the built-up area is about 0.055 g.
The slopes matter more. Houses on the hillsides often rest on retaining walls and old terraces that need upkeep, and the streams running to the sea are short and steep, rising fast after heavy rain. The report checks landslide and flood hazard at the address using the official maps, and the Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps.
Key points
- Riviera town with a station and A10 junction for Genoa.
- Over-65s at 31.7%; incomes above the provincial average.
- Seismic zone 4, the lowest on the scale.
- Retaining walls and steep streams: check landslides and floods.
Overview
Arenzano is a municipality in the province of Genova, in Liguria. At the end of 2023 it had 11,150 residents, among the most populous in the province (6 of 67).
Earthquakes
For Italy's Civil Protection Department, Arenzano is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. Only 3 of 67 municipalities in the province are in zone 4.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.055 g, a moderate 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 3.7%. The estimated average age is 50 years, in line with the province. 32% of residents are over 65 (the regional figure is 29%). Foreign residents make up 3.7% of the population. On average, a household has 2.0 members.
Income and climate
In tax year 2024, taxpayers in Arenzano declared an average taxable income of 33,172 euros, above the provincial average (26,655 euros). The Italian average is 24,895 euros.
Arenzano is in climate zone D, with 1,521 heating degree days: heating may be switched on from 1 November to 15 April, for up to 12 hours a day. The same table puts the town hall at 6 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Arenzano has 6 schools and 3 pharmacies. The Overture Maps data also lists 10 grocery shops and supermarkets, 2 healthcare facilities, 27 sports facilities and 2 parks and green areas.
There are 0.2 healthcare facilities per 1,000 residents, fewer than the province average (0.9).
Public transport
We do not yet have open public transport timetables for this municipality: the report says so explicitly, without inventing distances.
How built-up it is
Buildings, roads, car parks and other sealed surfaces cover 9.9% of the land in Arenzano, compared with 8.0% in the province and 7.3% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Arenzano is not among the radon priority areas designated by the Regione Liguria in 2026. 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 Arenzano; 2 have been cleaned up or closed.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Arenzano: 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 Arenzano 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 65 inhabited census areas in Arenzano. Half of the residents live in areas scoring 72 or more.
Residents by band
- modest 0.1%
- fair 15.9%
- good 81.4%
- very good 2.6%
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.
- 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 Liguria, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2026.
- Contaminated sites, ISPRA, MOSAICO - Banca dati nazionale dei siti oggetto di procedimento di bonifica. Licence CC BY 4.0, updated to 12 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 010001. The text on this page is generated automatically from the data.