Frascati: 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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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 Enrico Fermi 2, Frascati.
Frascati, the Castelli Romani and the research centres
Frascati is one of the Castelli Romani closest to Rome, the old hill towns of the Alban Hills, and it is built on a slope looking out over the Roman countryside. Aristocratic villas such as Villa Aldobrandini, its white wine and the ruins of Tusculum on the hilltop made its name. Less well known to outsiders, but important for the housing market, is scientific research: the European Space Agency's ESRIN centre, laboratories of Italy's national nuclear physics institute (INFN) and a large centre of the energy agency ENEA are all based here.
Many residents work in Rome. The Rome to Frascati railway runs into the city, and by car you drop down towards Anagnina and the Rome ring road. Homes range from flats in the hilly old centre, where parking is scarce, to newer villas and blocks lower down towards the plain.
Istat, the national statistics office, counted 22,805 residents in 2023, up 9.9% on 2011, strong growth for a town that was already built up. The average age of 45.9 is close to the provincial figure, and over-65s make up 23.6%. Foreign residents account for 6.7%. Declared incomes are close to the Rome metropolitan average.
The Alban Hills are an ancient volcanic complex, and earthquake hazard is fairly high: Frascati is in seismic zone 2, like 97 of the 121 municipalities in the province, with expected ground acceleration of about 0.167 g. For a building in tuff or stone, the construction date, structural work and assessments all matter. On volcanic ground it is also sensible to measure radon in ground-floor and basement rooms.
The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps, and the report finds the land parcel from the address, along with elevation and slope, which are useful in a town built on a hillside.
Key points
- A Castelli Romani town close to Rome, known for villas and wine.
- ESA, INFN and ENEA research centres draw residents.
- 22,805 residents, up 9.9% since 2011.
- Seismic zone 2, expected acceleration about 0.167 g.
Overview
Frascati is a municipality in the province of Roma, in Lazio. At the end of 2023 it had 22,805 residents, ranked 18 of 121 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Frascati 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 0.167 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Frascati, 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 grown by 9.9%. The estimated average age is 46 years, in line with the province. 24% of residents are over 65 (the regional figure is 23%). Foreign residents make up 6.7% of the population. On average, a household has 2.3 members.
Income and climate
In tax year 2024, taxpayers in Frascati declared an average taxable income of 28,226 euros, in line with the province (28,682 euros). The Italian average is 24,895 euros.
Frascati is in climate zone D, with 1,818 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 320 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Frascati has 35 schools and 6 pharmacies. The Overture Maps data also lists 18 grocery shops and supermarkets, 25 healthcare facilities, 36 sports facilities and 5 parks and green areas.
There are 1.5 schools per 1,000 residents, more 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 22.6% of the land in Frascati, compared with 13.2% in the province and 8.2% in the region. In 2024 built-up land grew by 1.3 hectares.
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 3 contaminated sites, or sites still under investigation, in Frascati, 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 Frascati: 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 Frascati 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 256 inhabited census areas in Frascati. Half of the residents live in areas scoring 61 or more.
Residents by band
- modest 9.5%
- fair 49.6%
- good 38.7%
- very good 2.2%
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
- 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 058039. The text on this page is generated automatically from the data.