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Treia: what to know before buying a home

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

Liveability index free for any address

Search for an address in Treia

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: Contrada San Marco Vecchio 1, Treia.

Treia, a ridge-top town above the Potenza valley

Treia sits on top of a ridge inland from Macerata, about three hundred and fifty metres up, and from the town walls the view stretches across the hills of the Marche to the Sibillini mountains. Locally the town is linked to pallone col bracciale, an old ball game played with a wooden armguard, which is remembered every summer with a contest called the Disfida del Bracciale. Macerata is about fifteen kilometres away.

The municipality reaches well beyond the walled centre. The hamlets lower down, such as Passo di Treia in the Potenza valley, have the newer houses, businesses and easier roads. In the old town you will find brick and stone houses with wide views, stairs and little parking; in the valley, detached houses and flats with gardens. On the slopes ground stability matters, near the river the flood risk does, and the report reads both for the individual plot.

Treia is losing residents. At the end of 2023 there were 9,033, down 7.3% since 2011, or 712 fewer people, according to Istat, the national statistics office. The estimated average age of 47.5 is in line with the province (47.2); 27.0% of residents are over 65 and 9.2% are foreign nationals. In the old town this means empty houses on the market, often in need of work.

In the province of Macerata, 6 municipalities are in seismic zone 1 of the Civil Protection classification and 49 in zone 2, Treia among them, with expected ground acceleration of about 0.175 g. Earthquakes are frequent in this part of the Apennines. For a masonry house, ask whether the building was damaged, whether it was repaired with public grants and what was done to the structure.

The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps for Treia, so the report works back from the address to the plot the building stands on.

Key points

  • Ridge-top town between Macerata and the Potenza valley.
  • Population down 7.3%; 27.0% over 65.
  • Seismic zone 2, expected acceleration about 0.175 g.
  • Old town on the hill, easier living in the valley hamlets.

Overview

Treia is a municipality in the province of Macerata, in Marche. At the end of 2023 it had 9,033 residents, ranked 12 of 55 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Treia is in seismic zone 2, a zone where strong earthquakes are possible. Most municipalities in the province (49 of 55) are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.175 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.

For anyone buying in Treia, 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 7.3%. The estimated average age is 47 years, in line with the province. 27% of residents are over 65 (the regional figure is 26%). Foreign residents make up 9.2% of the population. On average, a household has 2.5 members.

Income and climate

In tax year 2024, taxpayers in Treia declared an average taxable income of 22,749 euros, in line with the province (23,312 euros). The Italian average is 24,895 euros.

Treia is in climate zone D, with 2,040 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 342 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Treia has 8 schools and 4 pharmacies. The Overture Maps data also lists 7 grocery shops and supermarkets, 3 healthcare facilities, 4 sports facilities and 2 parks and green areas.

There are 0.3 healthcare facilities per 1,000 residents, fewer than the province average (0.7).

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 7.7% of the land in Treia, compared with 5.7% in the province and 7.0% in the region. In 2024 built-up land grew by 2.1 hectares.

Radon and contaminated sites

Official databases list no contaminated sites in Treia.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Treia: 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 Treia 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 48 inhabited census areas in Treia. Half of the residents live in areas scoring 58 or more.

Residents by band

  • fair 76.2%
  • good 23.8%

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 043054. The text on this page is generated automatically from the data.