San Cesareo: 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 San Cesareo
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 Casilina 1, San Cesareo.
San Cesareo, on the Via Casilina by the A1 junction
The Via Casilina runs through San Cesareo, east of Rome, at the point where the Roman countryside rises towards the Alban Hills and the Prenestini mountains. It is young even as a municipality: for a long time it was a district of Zagarolo and became independent only in recent times. The A1 motorway junction that bears its name has turned it into a place people pass through and settle in while working in Rome.
Most homes are detached houses and small apartment blocks built from the 1970s onwards, along the Casilina and in the surrounding countryside; the historic core is small. As in many towns that grew quickly around the capital, planning permits, any amnesty paperwork (condono) and the habitability certificate should be checked before buying. Getting to Rome means driving, and traffic on the Casilina and the Rome ring road (the GRA) has to be factored into daily journey times.
It is growing fast: 16,223 residents at the end of 2023, up 17.5% since 2011, or 2,417 more people, according to Istat, the national statistics office. The estimated average age is 42.9 (46.0 for the Rome metropolitan area), over-65s make up 18.3% and foreign residents 14.2%. Average incomes remain well below the provincial figure, which Rome itself pushes up.
The services on record reflect rapid growth. There are plenty of supermarkets, 0.80 per 1,000 residents against 0.38 in the province, but only 4 school sites, and no public green space appears in the data at all.
The ground here is volcanic, like the Alban Hills, and the municipality is in seismic zone 2, with an expected ground acceleration of about 0.170 g. For a self-built house or a block from the 1970s or 1980s, ask for the structural design, the sign-off and details of any work done. The Revenue Agency (Agenzia delle Entrate) publishes cadastral maps here, so the report can trace the address to the building's plot.
Key points
- On the Via Casilina east of Rome, with its own A1 motorway junction.
- Up 17.5% since 2011, foreign residents 14.2%.
- Seismic zone 2, expected acceleration about 0.170 g.
- Mostly recent houses and blocks: check permits and any amnesty.
Overview
San Cesareo is a municipality in the province of Roma, in Lazio. At the end of 2023 it had 16,223 residents, ranked 31 of 121 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, San Cesareo 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 0.170 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in San Cesareo, 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 17.5%. The estimated average age is 43 years, lower than the province average (46). 18% of residents are over 65 (the regional figure is 23%). Foreign residents make up 14.2% of the population. On average, a household has 2.4 members.
Income and climate
In tax year 2024, taxpayers in San Cesareo declared an average taxable income of 21,569 euros, below the provincial average (28,682 euros). The Italian average is 24,895 euros.
San Cesareo is in climate zone D, with 1,908 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 312 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, San Cesareo has 4 schools and 5 pharmacies. The Overture Maps data also lists 13 grocery shops and supermarkets, 9 healthcare facilities and 18 sports facilities.
There are 0.2 schools per 1,000 residents, fewer 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 19.7% of the land in San Cesareo, compared with 13.2% in the province and 8.2% in the region. In 2024 built-up land grew by 1.6 hectares.
Radon and contaminated sites
Official databases list one contaminated site, or site still under investigation, in San Cesareo. 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 San Cesareo: 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 San Cesareo 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 69 inhabited census areas in San Cesareo. Half of the residents live in areas scoring 57 or more.
Residents by band
- modest 5.3%
- fair 62.5%
- good 32.2%
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 058119. The text on this page is generated automatically from the data.