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Silvano d'Orba: what to know before buying a home

A municipality in the province of Alessandria, Piemonte. Official data on earthquakes, population, services and transport.

Liveability index free for any address

Search for an address in Silvano d'Orba

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 Villa Superiore 1, Silvano d'Orba.

Silvano d'Orba, between the stream and the Ovada vineyards

Silvano d'Orba carries in its name the stream that flows past the village, in the Ovada area, the southern part of the province of Alessandria where vineyard-covered hills lead up towards the Ligurian Apennines. This is dolcetto country, with vines on the slopes and the village set between the stream's plain and the first hills. Ovada is a few minutes away, and the A26 motorway to Genoa and Alessandria runs nearby.

Homes are varied: houses in the centre, detached homes, farmhouses among the vines and houses with land. Near the Orba, the thing to check is water: the stream has a wide bed, and the official flood maps are read for the address in the report. On the hills, gradients and access matter instead.

In 2023 there were 1,890 residents, according to Istat, the national statistics office, down 8.1% on 2011. The average age of 48.9 is the same as the province's, and over-65s are 27.3%, against 28.6% across the province. Foreign residents are 9.5%. Declared incomes are below the provincial average.

The municipality is in seismic zone 3 on the Civil Protection scale, like 126 other municipalities in the province, with an expected acceleration of 0.078 g. The level is moderate: for farmhouses and stone houses, ask about the condition of roofs, floors and walls.

The climate is zone E. The Revenue Agency publishes cadastral maps and the report traces the land parcel from the address, farmhouses with land included.

Key points

  • Village on the Orba in the Ovada area, dolcetto country.
  • Ovada close by, A26 motorway a short drive away.
  • Population down 8.1% since 2011.
  • Seismic zone 3, expected acceleration 0.078 g.

Overview

Silvano d'Orba is a municipality in the province of Alessandria, in Piemonte. At the end of 2023 it had 1,890 residents, ranked 28 of 187 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Silvano d'Orba is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (127 of 187) are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.078 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 8.1%. The estimated average age is 49 years, in line with the province. 27% of residents are over 65 (the regional figure is 27%). Foreign residents make up 9.5% of the population. On average, a household has 2.0 members.

Income and climate

In tax year 2024, taxpayers in Silvano d'Orba declared an average taxable income of 23,401 euros, below the provincial average (25,143 euros). The Italian average is 24,895 euros.

Silvano d'Orba is in climate zone E, with 2,629 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 175 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Silvano d'Orba has 3 schools and 1 pharmacy. The Overture Maps data also lists 1 grocery shop.

The data shows no healthcare facilities 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 10.6% of the land in Silvano d'Orba, compared with 7.2% in the province and 6.7% in the region. In 2024 built-up land stayed almost the same.

Radon and contaminated sites

Silvano d'Orba is not among the radon priority areas designated by the Regione Piemonte in 2023. 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 Silvano d'Orba; one has been cleaned up or closed.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Silvano d'Orba: 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 Silvano d'Orba 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 30 inhabited census areas in Silvano d'Orba. Half of the residents live in areas scoring 62 or more.

Residents by band

  • fair 67.8%
  • 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

ISTAT code 006162. The text on this page is generated automatically from the data.