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Asciano: 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

Search for an address in Asciano

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 Giacomo Matteotti 1, Asciano.

Asciano, the Crete Senesi and the railway to Siena

Asciano is the heart of the Crete Senesi, the pale, almost treeless clay hills south-east of Siena, sown with wheat or left to pasture. The town itself sits low, at around two hundred metres in the Ombrone valley, and Siena is roughly half an hour away by car. The municipality also includes the abbey of Monte Oliveto Maggiore, one of the best-known monasteries in Tuscany.

Asciano has a station on the railway between Siena and Chiusi, handy for anyone working in Siena; the line to Monte Antico also starts here, and today it mostly carries tourist trains. Otherwise you get around by car. The housing market has two sides: flats in the town, often in old buildings, and farmhouses and smallholdings in the countryside, many converted into holiday homes or agriturismi, reached by gravel roads and far from services.

There were 6,801 residents in 2023, down 5.9% on 2011. The average age (47.4) and the share of over-65s (26.5%) are close to the provincial figures, while foreign residents, at 11.6%, are a sizeable part of the population. Declared incomes are slightly below the Siena average.

Asciano is in seismic zone 3 on the Civil Protection department's map, like most municipalities in the province (31 out of 35), and the expected ground acceleration in the built-up area is about 0.135 g. With a stone farmhouse, find out whether the renovation also dealt with load-bearing walls and floors as well as the roof and services.

The clay of the Crete moves easily. On eroded slopes, where the typical bare mounds and gullies form, landslide hazard has to be checked plot by plot, and on the valley floors flood hazard too. The report does this from the address, using the Revenue Agency (Agenzia delle Entrate) cadastral maps.

Key points

  • Crete Senesi, home to the abbey of Monte Oliveto Maggiore.
  • Station on the Siena to Chiusi line.
  • Population down 5.9% since 2011.
  • Seismic zone 3, acceleration about 0.135 g.

Overview

Asciano is a municipality in the province of Siena, in Toscana. At the end of 2023 it had 6,801 residents, ranked 14 of 35 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Asciano 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 0.135 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 fallen by 5.9%. The estimated average age is 47 years, in line with the province. 27% of residents are over 65 (the regional figure is 26%). Foreign residents make up 11.6% of the population. On average, a household has 2.2 members.

Income and climate

In tax year 2024, taxpayers in Asciano declared an average taxable income of 23,570 euros, below the provincial average (25,404 euros). The Italian average is 24,895 euros.

Asciano is in climate zone D, with 1,687 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 200 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Asciano has 5 schools and 2 pharmacies. The Overture Maps data also lists 3 grocery shops and supermarkets and 5 sports facilities.

The data shows no healthcare facilities within the municipality, against a provincial average of 0.6 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 2.8% of the land in Asciano, 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

Asciano is not among the radon priority areas designated by the Regione Toscana in 2025. 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 Asciano; one has been cleaned up or closed.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Asciano: 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 Asciano 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 92 inhabited census areas in Asciano. Half of the residents live in areas scoring 63 or more.

Residents by band

  • modest 1.9%
  • fair 62.2%
  • good 35.9%

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 052002. The text on this page is generated automatically from the data.