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Nepi: what to know before buying a home

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

Liveability index free for any address

Search for an address in Nepi

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 Giuseppe Garibaldi 1, Nepi.

Nepi, a tuff-stone town among the ravines north of Rome

Nepi is built on a spur of tuff, the soft volcanic stone of northern Lazio, surrounded by forre, the deep ravines cut by streams that define the Agro Falisco area in the south of the province of Viterbo. The Borgia fortress stands at the entrance to the old town, and the name Nepi is familiar across Italy from the mineral water that rises here.

Rome is about fifty kilometres away, which makes Nepi an option for people who work in the capital and want more space at prices unlike Rome's. If you are looking at a house in the old town, bear in mind that it stands on the edge of the ravines: tuff walls, cellars cut into the rock and sheer drops. Tuff is solid, but ravine walls can collapse, and the report checks the landslide maps for the address. Outside the old town there are detached houses and homes in the countryside.

In volcanic areas like this it is also worth testing for radon, a natural gas that can build up in basements and rooms in contact with the ground.

Nepi is one of the larger municipalities in the Tuscia, as the Viterbo area is known. Istat, the national statistics office, recorded 9,467 residents in 2023, up 1.2% on 2011. The average age is 46.1, below the provincial 47.5; over-65s make up 22.3% and foreign nationals 10.3%. Incomes are in line with the province.

On the Civil Protection Department's map, 40 municipalities in the province of Viterbo are in seismic zone 2 and 20 in zone 3, Nepi among them, with expected ground acceleration of about 0.085 g. In the old town's tuff-built houses, the condition of the load-bearing walls and floors is what counts. The Revenue Agency's cadastral maps are published and the report works down to the plot.

Key points

  • Old town on a tuff spur among ravines, with the Borgia fortress.
  • Tuff cliffs: check landslide and collapse risk per address.
  • Population up 1.2% since 2011.
  • Seismic zone 3, expected acceleration about 0.085 g.

Overview

Nepi is a municipality in the province of Viterbo, in Lazio. At the end of 2023 it had 9,467 residents, among the most populous in the province (6 of 60).

Earthquakes

For Italy's Civil Protection Department, Nepi is in seismic zone 3, a zone where strong earthquakes are possible but rare. The region uses a finer breakdown: here the classification is 3A-3B. Only 20 of 60 municipalities in the province are in zone 3.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.085 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 resident population has grown by 1.2%. The estimated average age is 46 years, in line with the province. 22% of residents are over 65 (the regional figure is 23%). Foreign residents make up 10.3% of the population. On average, a household has 2.2 members.

Income and climate

In tax year 2024, taxpayers in Nepi declared an average taxable income of 21,978 euros, in line with the province (22,031 euros). The Italian average is 24,895 euros.

Nepi is in climate zone D, with 1,824 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 227 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Nepi has 4 schools and 2 pharmacies. The Overture Maps data also lists 10 grocery shops and supermarkets, 5 healthcare facilities, 16 sports facilities and 2 parks and green areas.

There are 0.4 schools 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 5.4% of the land in Nepi, compared with 4.7% in the province and 8.2% in the region. In 2024 built-up land grew by 2.4 hectares.

Radon and contaminated sites

According to the ISPRA map, the estimated radon emission in the municipality is very high. Radon varies from building to building and can only be known by measuring it, especially on ground floors and in basements.

Official databases list 3 contaminated sites, or sites still under investigation, in Nepi, and one more has been cleaned up or closed. The report tells you whether one is close to the address.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Nepi: 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 Nepi 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 71 inhabited census areas in Nepi. Half of the residents live in areas scoring 69 or more.

Residents by band

  • modest 2.7%
  • fair 46.6%
  • good 50.8%

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 056039. The text on this page is generated automatically from the data.