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Terzorio: what to know before buying a home

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

Liveability index free for any address

Search for an address in Terzorio

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 Provinciale 1, Terzorio.

Terzorio, in the first hills behind the western Riviera

Terzorio sits in the first line of hills behind the coast of western Liguria, between Sanremo and Imperia, just under two hundred metres up. It is a small, compact village of houses packed together along narrow lanes, with terraced slopes running down towards the sea. The coast, with the Via Aurelia coast road, shops and services, is a few hairpin bends away, while for hospital and offices people rely on the larger towns of the province.

For buyers, the location is both the attraction and the limitation. Houses in the old centre often have pedestrian-only access, old walls and roofs that need checking; those scattered in the countryside come with terraced land and dry-stone walls that need maintaining. Before signing, check parking, whether any extensions were authorised and the state of the retaining walls. The report checks the official landslide hazard maps for the address.

Istat, Italy's national statistics office, counted 220 residents in 2023, against 232 in 2011, a fall of 5.2%. The estimated average age is 51.3, against 48.7 in the province of Imperia, and over-65s make up 30.5%. Households have 2.08 members on average. Declared incomes are below the provincial average.

Western Liguria has an earthquake history worth respecting. Terzorio is in zone 2 on the Civil Protection Department's scale, like 30 of the 66 municipalities in the province, with an expected ground acceleration of about 0.152 g in the built-up area. In a masonry building, ask whether it has been strengthened and see the paperwork. The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps, and the report traces the land parcel from the address.

Key points

  • Hill village behind the western Riviera, between Sanremo and Imperia.
  • 220 residents in 2023, down 5.2% since 2011.
  • Terraced land: check dry-stone and retaining walls.
  • Seismic zone 2, expected acceleration about 0.152 g.

Overview

Terzorio is a municipality in the province of Imperia, in Liguria. At the end of 2023 it had 220 residents, among the smallest in the province (60 of 66).

Earthquakes

For Italy's Civil Protection Department, Terzorio is in seismic zone 2, a zone where strong earthquakes are possible. Only 30 of 66 municipalities in the province are in zone 2.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.152 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.

For anyone buying in Terzorio, the building matters a great deal: ask for the design year, whether it met the 2008 seismic standards, and whether any seismic retrofit has been carried out.

Population

Compared with the 2011 census, the resident population has fallen by 5.2%. The estimated average age is 51 years, higher than the province average (49). 30% of residents are over 65 (the regional figure is 29%). Foreign residents make up 4.1% of the population. On average, a household has 2.1 members.

Income and climate

In tax year 2024, taxpayers in Terzorio declared an average taxable income of 17,149 euros, below the provincial average (21,487 euros). The Italian average is 24,895 euros.

Terzorio is in climate zone D, with 1,564 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 185 metres above sea level.

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 6.3% of the land in Terzorio, compared with 6.4% in the province and 7.3% in the region. In 2024 built-up land stayed almost the same.

Radon and contaminated sites

Terzorio 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 contaminated sites in Terzorio.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Terzorio: 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 Terzorio 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 2 inhabited census areas in Terzorio. Half of the residents live in areas scoring 54 or more.

Residents by band

  • modest 25.5%
  • fair 74.5%

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 008060. The text on this page is generated automatically from the data.