Capranica Prenestina: what to know before buying a home
A municipality in the province of Roma, Lazio. Official data on earthquakes, population, services and transport.
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Search for an address in Capranica Prenestina
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 Achille Sabelli 1, Capranica Prenestina.
Capranica Prenestina, high on the Prenestini mountains
Capranica Prenestina sits on the Prenestini mountains, above nine hundred metres, east of Rome. The municipality also includes the hamlet of Guadagnolo, higher still, and the Mentorella shrine, a pilgrimage site, is nearby. From the village the view opens over the Roman countryside; for services, schools and work people go down towards Palestrina and the towns in the valley, and from there to Rome.
The market is mostly stone houses in the old centre and homes used in summer by people escaping the heat of the city. At this altitude winters are cold, so heating and insulation should be weighed together with the price. With houses built against the slope, damp, the roof and retaining walls matter, and the official landslide maps are checked at the address in the report.
In 2023 there were 318 residents, down 3.6% on 2011, according to Istat, Italy's national statistics office. The estimated average age is 50.5, against 46.0 in the metropolitan city, and over-65s make up 23.6%. Foreign residents account for 11.6%. Declared incomes are well below the metropolitan average, which Rome pulls upwards.
The municipality is in seismic zone 2 on the Civil Protection Department's national scale, with expected ground acceleration of about 0.154 g, a medium value. In the metropolitan city, 97 municipalities are in zone 2 and 24 in zone 3. For a stone house in the old centre, ask whether roofs and floors have been rebuilt and with what materials, because a heavy roof on old walls is a weak point.
The Revenue Agency (Agenzia delle Entrate) cadastre is published, and the report traces the plot from the address.
Key points
- Prenestini mountains above 900 metres, including the hamlet of Guadagnolo.
- 318 residents in 2023, down 3.6% since 2011.
- Seismic zone 2, expected acceleration about 0.154 g.
- Stone houses: check roof, floors and insulation.
Overview
Capranica Prenestina is a municipality in the province of Roma, in Lazio. At the end of 2023 it had 318 residents, among the smallest in the province (114 of 121).
Earthquakes
For Italy's Civil Protection Department, Capranica Prenestina 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 0.154 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Capranica Prenestina, 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 3.6%. The estimated average age is 51 years, higher than the province average (46). 24% of residents are over 65 (the regional figure is 23%). Foreign residents make up 11.6% of the population. On average, a household has 1.6 members.
Income and climate
In tax year 2024, taxpayers in Capranica Prenestina declared an average taxable income of 19,186 euros, below the provincial average (28,682 euros). The Italian average is 24,895 euros.
Capranica Prenestina is in climate zone E, with 2,927 heating degree days: heating may be switched on from 15 October to 15 April, for up to 14 hours a day. The same table puts the town hall at 915 metres above sea level.
Services
In the Overture Maps data, Capranica Prenestina has 1 green area.
The data shows no schools within the municipality, against a provincial average of 0.7 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 1.8% of the land in Capranica Prenestina, 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 open contaminated sites in Capranica Prenestina; one has been cleaned up or closed.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Capranica Prenestina: 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 Capranica Prenestina 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 7 inhabited census areas in Capranica Prenestina. Half of the residents live in areas scoring 58 or more.
Residents by band
- fair 100.0%
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
- Seismic classification of municipalities, Dipartimento della Protezione Civile. Licence CC BY 4.0, updated to 2025-05.
- MPS04 seismic hazard model, INGV. Licence CC BY 4.0, 2004 model.
- Data by census section, Istat. Licence CC BY 4.0, residents at the end of 2023, compared with the 2011 census.
- Places, Overture Maps Foundation. Licence CDLA Permissive 2.0 and others depending on provider, release 2026-10-21.0.
- Income and main IRPEF variables by municipality, MEF, Dipartimento delle Finanze. Licence CC BY 3.0 IT, tax year 2024.
- Climate zones and heating degree days of municipalities (Presidential Decree 412/1993, Annex A), Normattiva. Licence CC BY 4.0, current text.
- Land take, territorial dynamics and ecosystem services, ISPRA e SNPA. Licence CC BY 4.0, 2024 data.
- Predictive radon map by municipality, ISPRA. Licence CC BY 4.0, version 2022-11.
- Contaminated sites, ISPRA, MOSAICO - Banca dati nazionale dei siti oggetto di procedimento di bonifica. Licence CC BY 4.0, updated to 12 November 2026.
- Liveability index by census area, Vicinalia, from the data in the report sections. Licence CC BY-SA 4.0, worked out on 30 September 2026.
- List of Italian municipalities, Istat. Licence CC BY 4.0, updated to 21 February 2026.
ISTAT code 058019. The text on this page is generated automatically from the data.