Turriaco: what to know before buying a home
A municipality in the province of Gorizia, Friuli-Venezia Giulia. Official data on earthquakes, population, services and transport.
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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 Guglielmo Oberdan 1, Turriaco.
Turriaco, the Bisiacaria near Monfalcone
Turriaco is part of the Bisiacaria, the small lowland area of the province of Gorizia between the Isonzo river and the Karst plateau, with its own dialect and identity. The village is a few minutes from Monfalcone, whose port and industries make it the main employer in the area; Trieste and Gorizia are about half an hour away, and the sea at Grado and along the Isonzo coast is close.
For a buyer, Turriaco is a residential village on the plain: detached and semi-detached houses with a yard or garden, a few old rural homes in the historic core and not many blocks of flats. The ground is low, just a few metres above sea level, with channels and a water table close to the surface. Damp and cellars need checking, and the report reads the official flood maps for the exact address.
There is also a legal point. As elsewhere in the former Austrian territory, the tavolare system applies here: ownership is proven by entry in the land register (libro fondiario). The Revenue Agency (Agenzia delle Entrate) maps are published all the same and the report uses them for the parcel, but titles, easements and mortgages are checked at the land registry office.
The population is flat: there are 2,780 residents (2023), the same as in 2011. The average age is 47.7 (48.0 in the province), people over 65 make up 23.9%, fewer than the provincial average of 26.9%, and foreign residents 7.6%. Declared incomes are above the provincial average.
Turriaco is in seismic zone 3, like 14 other municipalities in the Gorizia area, with an expected ground acceleration of 0.131 g. For a house built before the 1980s, it is worth asking for the structural documents.
Key points
- Bisiacaria, a few minutes from Monfalcone
- Tavolare system: ownership in the land register
- 2,780 residents, population steady since 2011
- Seismic zone 3, acceleration 0.131 g
Overview
Turriaco is a municipality in the province of Gorizia, in Friuli-Venezia Giulia. At the end of 2023 it had 2,780 residents, ranked 11 of 25 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Turriaco is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (15 of 25) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.131 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 number of residents is nearly unchanged. The estimated average age is 48 years, in line with the province. 24% of residents are over 65 (the regional figure is 27%). Foreign residents make up 7.6% of the population. On average, a household has 2.1 members.
Income and climate
In tax year 2024, taxpayers in Turriaco declared an average taxable income of 25,663 euros, above the provincial average (24,418 euros). The Italian average is 24,895 euros.
Turriaco is in climate zone E, with 2,257 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 12 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Turriaco has 2 schools and 1 pharmacy. The Overture Maps data also lists 1 sports facility and 1 green area.
The data shows no grocery shops and supermarkets within the municipality, against a provincial average of 0.5 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 21.0% of the land in Turriaco, compared with 13.0% in the province and 8.1% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Turriaco is not among the radon priority areas designated by the Regione Friuli Venezia Giulia in 2024. 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 contaminated sites in Turriaco.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Turriaco: 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
Turriaco uses the tavolare (land book) system, but the Revenue Agency still publishes the maps: the report finds the building's parcel, that is its sheet and parcel number, starting from the address.
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 12 inhabited census areas in Turriaco. Half of the residents live in areas scoring 60 or more.
Residents by band
- modest 1.2%
- fair 89.9%
- good 8.9%
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
- 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 Friuli Venezia Giulia, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2024.
- 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 031024. The text on this page is generated automatically from the data.