Skip to content
Vicinalia
Italiano Sign up

Siddi: what to know before buying a home

A municipality in the province of Medio Campidano, Sardegna. Official data on earthquakes, population, services and transport.

Liveability index free for any address

Search for an address in Siddi

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 Grazia Deledda 1, Siddi.

Siddi, Marmilla hills and mild winters

Siddi is a village in the Marmilla, the area of gentle hills and open fields in south-central Sardinia. The village lies less than two hundred metres above sea level at the foot of a basalt plateau, surrounded by arable land, pasture and country lanes. Among its oldest remains is the giants' tomb of Sa Domu 'e s'Orku, a burial site from the Nuragic age.

The climate is mild (zone C), with hot summers and short winters. Village houses are often traditional courtyard homes, with an inner yard and walls of stone or mud brick, alongside more recent buildings. With a courtyard house it is worth checking damp in the walls, the state of the roof and whether extensions built over the years are properly registered.

Istat, the national statistics office, recorded 559 residents in 2023, 137 fewer than in 2011, a fall of 19.7%. Siddi is an elderly village: the average age is 55.6 against 49.4 in the province, with over-65s at 38.5% (28.9% provincially). Foreign nationals make up 0.4%, and declared incomes are below the provincial average.

Earthquake risk is low here: all 28 municipalities in the province are in seismic zone 4, with an expected acceleration at Siddi of about 0.050 g. For the main services, from the hospital to secondary schools, people drive to larger towns.

The Revenue Agency (Agenzia delle Entrate) cadastral maps cover the municipality and the report traces the plot from the address. For land or a house outside the village, it also checks the official flood maps along watercourses.

Key points

  • Marmilla village, home to the giants' tomb of Sa Domu 'e s'Orku.
  • Average age 55.6, over-65s at 38.5%.
  • All 28 municipalities in the province in seismic zone 4.
  • Mild climate; check courtyard houses for damp and roofs.

Overview

Siddi is a municipality in the province of Medio Campidano, in Sardegna. At the end of 2023 it had 559 residents, ranked 22 of 28 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Siddi is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. All 28 municipalities in the province are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.050 g, a moderate value: the level with a 10% probability of being exceeded in 50 years, on rock.

In zone 4 the risk is low, but for an older building it is still worth asking about the state of the structure.

Population

Compared with the 2011 census, the resident population has fallen by 19.7%. The estimated average age is 56 years, higher than the province average (49). 38% of residents are over 65 (the regional figure is 27%). Foreign residents make up 0.4% of the population. On average, a household has 2.2 members.

Income and climate

In tax year 2024, taxpayers in Siddi declared an average taxable income of 16,653 euros, below the provincial average (19,085 euros). The Italian average is 24,895 euros.

Siddi is in climate zone C, with 1,207 heating degree days: heating may be switched on from 15 November to 31 March, for up to 10 hours a day. The same table puts the town hall at 184 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Siddi has 1 school and 1 pharmacy.

The data shows no grocery shops and supermarkets within the municipality, against a provincial average of 0.9 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 4.5% of the land in Siddi, compared with 3.4% in the region. In 2024 built-up land stayed almost the same.

Radon and contaminated sites

Siddi is not among the radon priority areas designated by the Regione Sardegna in 2022. 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.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Siddi: 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 Siddi 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 6 inhabited census areas in Siddi. Half of the residents live in areas scoring 65 or more.

Residents by band

  • fair 2.4%
  • good 97.6%

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 117021. The text on this page is generated automatically from the data.