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Manziana: 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 Manziana

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: Corso Vittorio Emanuele 1, Manziana.

Manziana, Sabatini woods and a train to Rome

Manziana is a town in the Sabatini hills, north-west of Rome and a few kilometres from Lake Bracciano. The centre stands on a volcanic plateau at around 370 metres, surrounded by woods, including Macchia Grande, mostly oak and Turkey oak. Just outside the town is the Caldara, a protected area where volcanic gases still rise from the ground.

For anyone working in Rome, the key link is the Rome to Viterbo railway: Manziana-Canale Monterano station is on the FL3 regional line into the city. Buyers find small villas with gardens, houses in the little historic centre and several residential areas built in recent decades. Winters are cooler than in Rome (climate zone D), and in summer the woods keep the air fresher.

Since 2011 the population has grown: 7,739 at the end of 2023, up 9.3%, according to Istat, the national statistics office. People here are older than the average for the Metropolitan City of Rome, though: 47.3 against 46.0, with over-65s at 25.8% against 22.9%. Foreign residents are 8.0%. Average declared incomes are below the metropolitan average, which is high in Rome.

Manziana is in zone 3 of the seismic scale kept by the Civil Protection Department (Protezione Civile), like 23 other municipalities in the metropolitan area, and expected ground acceleration is about 0.070 g, a low value. The Sabatini volcanoes are extinct, but the volcanic ground calls for a different kind of care: radon, a natural gas, can reach high levels in this area, so for a house with a cellar or basement rooms it is worth asking whether it has been measured.

The Revenue Agency (Agenzia delle Entrate) publishes cadastral maps here, and the report starts from them for each address, also checking landslides and flooding along the gullies that run off the plateau.

Key points

  • Volcanic plateau among woods, near Lake Bracciano.
  • Station on the FL3 regional line to Rome.
  • Over-65s at 25.8%, above the Rome area's 22.9%.
  • Seismic zone 3; check radon in cellars.

Overview

Manziana is a municipality in the province of Roma, in Lazio. At the end of 2023 it had 7,739 residents, ranked 51 of 121 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Manziana is in seismic zone 3, a zone where strong earthquakes are possible but rare. The region uses a finer breakdown: here the classification is 3B. Only 24 of 121 municipalities in the province are in zone 3.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.070 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 9.3%. The estimated average age is 47 years, in line with the province. 26% of residents are over 65 (the regional figure is 23%). Foreign residents make up 8.0% of the population. On average, a household has 2.2 members.

Income and climate

In tax year 2024, taxpayers in Manziana declared an average taxable income of 26,104 euros, below the provincial average (28,682 euros). The Italian average is 24,895 euros.

Manziana is in climate zone D, with 1,936 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 369 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Manziana has 4 schools and 2 pharmacies. The Overture Maps data also lists 7 grocery shops and supermarkets, 2 healthcare facilities, 1 sports facility and 6 parks and green areas.

There are 0.3 healthcare facilities per 1,000 residents, fewer than the province average (0.8).

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 8.9% of the land in Manziana, 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 Manziana.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Manziana: 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 Manziana 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 Manziana. Half of the residents live in areas scoring 66 or more.

Residents by band

  • modest 0.3%
  • fair 43.9%
  • good 55.9%

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 058054. The text on this page is generated automatically from the data.