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Gavignano: what to know before buying a home

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

Liveability index free for any address

Search for an address in Gavignano

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 Dante Alighieri 1, Gavignano.

Gavignano, a hill village above the Sacco valley

Gavignano stands on a hill above the Sacco valley, in the south-eastern part of the province of Rome, at about 400 metres on the edge of the Lepini mountains. The old centre is compact and steep, while lower down there are scattered houses and newer building. Colleferro is the nearest town for services and work, and Rome is reached via the A1 motorway running along the valley.

Istat, the national statistics office, counts 1,872 residents in 2023, down 4.3% since 2011. The average age is 47.0 (province: 46.0), over-65s are 23.6% and foreign residents 3.5%. Households have 2.39 members on average.

Declared incomes are well below the provincial average, although that average includes the capital. The market is typical of a hill village: multi-storey town houses in the centre, often with steep stairs and no garage, and detached houses with gardens outside the old walls. If you work in Rome, work out your daily travel time carefully.

Gavignano is in seismic zone 2, like most municipalities in the province, with an expected acceleration of 0.135 g. In masonry houses in the centre, check that past alterations, such as extra storeys or openings in load-bearing walls, were authorised and have not weakened the structure.

The Revenue Agency (Agenzia delle Entrate) publishes cadastral maps here. The report identifies the parcel from the address and checks slope, landslides and flooding for that spot on the official maps.

Key points

  • Hill above the Sacco valley, on the edge of the Lepini mountains.
  • Population down 4.3% since 2011.
  • Seismic zone 2, expected acceleration 0.135 g.
  • Steep town houses in the centre, detached homes outside the walls.

Overview

Gavignano is a municipality in the province of Roma, in Lazio. At the end of 2023 it had 1,872 residents, ranked 79 of 121 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Gavignano is in seismic zone 2, a zone where strong earthquakes are possible. The region uses a finer breakdown: here the classification is 2B. Most municipalities in the province (97 of 121) are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.135 g, a moderate value: the level with a 10% probability of being exceeded in 50 years, on rock.

For anyone buying in Gavignano, 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 4.3%. The estimated average age is 47 years, in line with the province. 24% of residents are over 65 (the regional figure is 23%). Foreign residents make up 3.5% of the population. On average, a household has 2.4 members.

Income and climate

In tax year 2024, taxpayers in Gavignano declared an average taxable income of 22,612 euros, below the provincial average (28,682 euros). The Italian average is 24,895 euros.

Gavignano is in climate zone D, with 1,935 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 404 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Gavignano has 3 schools and 1 pharmacy. The Overture Maps data also lists 1 sports facility.

The data shows no grocery shops and supermarkets within the municipality, against a provincial average of 0.4 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 5.3% of the land in Gavignano, compared with 13.2% in the province and 8.2% in the region. In 2024 built-up land stayed almost the same.

Radon and contaminated sites

According to the ISPRA map, the estimated radon emission in the municipality is medium. 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 Gavignano.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Gavignano: 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 Gavignano 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 25 inhabited census areas in Gavignano. Half of the residents live in areas scoring 59 or more.

Residents by band

  • modest 1.8%
  • fair 98.2%

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 058041. The text on this page is generated automatically from the data.