Castelnuovo Berardenga: what to know before buying a home
A municipality in the province of Siena, Toscana. Official data on earthquakes, population, services and transport.
Liveability index free for any address
Land sheet 6 free checks
Search for an address in Castelnuovo Berardenga
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 del Chianti 1, Castelnuovo Berardenga.
Castelnuovo Berardenga, Chianti country south-east of Siena
Castelnuovo Berardenga is the southernmost municipality of the Sienese Chianti, a large area of vineyards and olive groves sloping down towards the Arbia valley. The main village sits at around three hundred and fifty metres, some twenty kilometres from Siena, and is ringed by hamlets such as Vagliagli, San Gusmè, Pianella and Villa a Sesta. Montaperti, one of those hamlets, gave its name to the battle of 1260 between Siena and Florence.
Most of what comes on the market is stone houses, restored farmhouses and flats in the villages, and a good share are second homes. If an isolated farmhouse appeals, allow for unmade white roads, the drive to schools and shops, and the running cost of stone walls and old roofs. People who commute to Siena tend to look at the main village or the hamlets on the Siena side.
At the end of 2023 the population stood at 8,940, up 1.7% on 2011 according to Istat, the national statistics office. The estimated average age is 46.2, below the 47.6 of the province of Siena, and over-65s make up 23.7% against 26.9%. Foreign residents account for 10.3%. Declared incomes are above the provincial average.
Castelnuovo is in seismic zone 3 on the Civil Protection scale, like 31 of the 35 municipalities in the province; the other 4 are in zone 2. Expected ground acceleration in the built-up area is about 0.121 g. With a stone farmhouse, ask whether the structure has been strengthened, with tie rods or ring beams for example, and ask to see the permits for the work.
The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps, so the report can trace the address to its land parcel. Conditions differ a lot between ridges and valley floors, which is why landslide and flood hazard are checked at the exact spot of the house.
Key points
- Sienese Chianti, vineyard hills between Siena and the Arbia valley.
- Population up 1.7% since 2011, average age 46.2.
- Seismic zone 3, expected acceleration about 0.121 g.
- Incomes above the average for the province of Siena.
Overview
Castelnuovo Berardenga is a municipality in the province of Siena, in Toscana. At the end of 2023 it had 8,940 residents, ranked 9 of 35 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Castelnuovo Berardenga is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (31 of 35) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.121 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 1.7%. The estimated average age is 46 years, in line with the province. 24% of residents are over 65 (the regional figure is 26%). 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 Castelnuovo Berardenga declared an average taxable income of 28,702 euros, above the provincial average (25,404 euros). The Italian average is 24,895 euros.
Castelnuovo Berardenga is in climate zone D, with 2,099 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 351 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Castelnuovo Berardenga has 7 schools and 3 pharmacies. The Overture Maps data also lists 2 grocery shops and supermarkets, 3 healthcare facilities, 7 sports facilities and 3 parks and green areas.
There are 0.2 grocery shops and supermarkets per 1,000 residents, fewer than the province average (0.6).
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 4.1% of the land in Castelnuovo Berardenga, compared with 4.0% in the province and 6.2% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Castelnuovo Berardenga is not among the radon priority areas designated by the Regione Toscana in 2025. According to the ISPRA map, the estimated radon emission in the municipality is low. Radon varies from building to building and can only be known by measuring it, especially on ground floors and in basements.
Official databases list one contaminated site, or site still under investigation, in Castelnuovo Berardenga. 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 Castelnuovo Berardenga: 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 Castelnuovo Berardenga 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 103 inhabited census areas in Castelnuovo Berardenga. Half of the residents live in areas scoring 59 or more.
Residents by band
- modest 0.3%
- fair 75.5%
- good 24.3%
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.
- Radon priority areas (Legislative Decree 101/2020), Regione Toscana, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2025.
- 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 052006. The text on this page is generated automatically from the data.