Casarza Ligure: 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
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Search for an address in Casarza Ligure
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 Francolano 2, Casarza Ligure.
Casarza Ligure, the Petronio valley behind Sestri Levante
The sea at Sestri Levante is a few minutes' drive away, yet Casarza Ligure feels different: it is a valley municipality along the Petronio stream, climbing from the small plain into the hills behind the Tigullio coast. The main village is almost flat, at around thirty metres, while the hamlets rise up the slopes among woods and terraces.
For house hunters it is often the alternative to the coast. Lower down there are apartment blocks and newer homes; further up towards the hamlets you find detached houses with a bit of land, usually cheaper than in the seaside resorts. People working in Genoa use the A12 motorway or catch the train at Sestri Levante.
The population is stable: 6,732 residents at the end of 2023 according to Istat, the national statistics office, 24 more than in 2011. In one of the oldest regions in Italy, Casarza is fairly young, with an estimated average age of 46.7 against 49.0, and over-65s at 25.0% compared with 29.1% across the province of Genoa. Foreign residents make up 6.7%. Declared incomes are below the provincial average, although that figure is pulled up by the city itself.
Almost the whole province is in seismic zone 3 of the Civil Protection classification: 64 of its 67 municipalities, Casarza included. Expected ground acceleration in the built-up area is about 0.113 g, on the low side of medium. In the stone houses of the hamlets, ask when the roof and floors were last redone and whether any work was carried out on the walls.
The valley floor follows the Petronio and its tributaries, and the slopes are steep. Flood hazard near the streams and landslide hazard on the hillsides therefore need checking address by address, which the report does using the official maps. The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps here, so the report can trace the plot from the address.
Key points
- Petronio valley, inland from Sestri Levante.
- Population stable since 2011; over-65s at 25.0% against 29.1%.
- Seismic zone 3, like 64 municipalities in the province.
- Streams and slopes: check flood and landslide hazard per address.
Overview
Casarza Ligure is a municipality in the province of Genova, in Liguria. At the end of 2023 it had 6,732 residents, ranked 11 of 67 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Casarza Ligure is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (64 of 67) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.113 g, a moderate value: the level with a 10% probability of being exceeded in 50 years, on rock.
Even in zone 3, seismic standards apply to new buildings: for an older building, ask about the design year and any structural work.
Population
Compared with the 2011 census, the number of residents is nearly unchanged. The estimated average age is 47 years, lower than the province average (49). 25% of residents are over 65 (the regional figure is 29%). Foreign residents make up 6.7% of the population. On average, a household has 2.2 members.
Income and climate
In tax year 2024, taxpayers in Casarza Ligure declared an average taxable income of 23,247 euros, below the provincial average (26,655 euros). The Italian average is 24,895 euros.
Casarza Ligure is in climate zone D, with 1,480 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 34 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Casarza Ligure has 3 schools and 2 pharmacies. The Overture Maps data also lists 5 grocery shops and supermarkets and 3 sports facilities.
The data shows no healthcare facilities within the municipality, against a provincial average of 0.9 per 1,000 residents.
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 6.5% of the land in Casarza Ligure, 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
Casarza Ligure is not among the radon priority areas designated by the Regione Liguria in 2026. According to the ISPRA map, the estimated radon emission in the municipality is low. 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 Casarza Ligure; 2 have been cleaned up or closed.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Casarza Ligure: 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 Casarza Ligure 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 36 inhabited census areas in Casarza Ligure. Half of the residents live in areas scoring 65 or more.
Residents by band
- modest 6.2%
- fair 43.5%
- good 50.3%
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 010011. The text on this page is generated automatically from the data.