Doberdò del Lago: 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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Search for an address in Doberdò del Lago
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 Gorizia 1, Doberdò del Lago.
Doberdò del Lago, the Karst and its changing lake
The lake that gives the village its name is a karst lake: it fills and empties with the seasons, fed by water flowing beneath the rock, and is protected by a nature reserve. Doberdò del Lago, Doberdob in Slovene, lies on the Gorizia Karst, between Gorizia and Monfalcone, and is a bilingual municipality with a strong Slovene community.
The landscape is classic Karst: limestone, sinkholes (doline), scrub, dry-stone walls and no rivers on the surface. Traditional houses are stone-built, often around an enclosed yard. Monfalcone and Gorizia are close for work and services, and the Slovenian border is just a short way off. Average incomes are above the provincial average.
There are 1,330 residents (2023), down 7.7% on 2011 according to Istat, the national statistics office. The average age is 49.7 (48.0 in the province), over-65s are 29.2% and foreign residents 2.3%.
In the province of Gorizia there are municipalities in seismic zone 2 (10) and zone 3 (15); Doberdò is in zone 3, with an expected ground acceleration of 0.155 g. In stone houses, check the state of the walls and how they are tied to the floors before renovating.
Here ownership is recorded in the Libro fondiario, the tavolare land register inherited from Austria, which is still used in the provinces of Gorizia and Trieste. The Revenue Agency (Agenzia delle Entrate) maps are published all the same, and the report finds the parcel and checks the official landslide and flood maps for the address.
Key points
- Bilingual Karst village with a protected seasonal lake.
- 1,330 residents, down 7.7% since 2011.
- Seismic zone 3, expected acceleration 0.155 g.
- Tavolare land register, but cadastral maps available.
Overview
Doberdò del Lago is a municipality in the province of Gorizia, in Friuli-Venezia Giulia. At the end of 2023 it had 1,330 residents, ranked 21 of 25 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Doberdò del Lago 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 0.155 g, a medium-high 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 7.7%. The estimated average age is 50 years, higher than the province average (48). 29% of residents are over 65 (the regional figure is 27%). Foreign residents make up 2.3% of the population. On average, a household has 2.2 members.
Income and climate
In tax year 2024, taxpayers in Doberdò del Lago declared an average taxable income of 25,481 euros, in line with the province (24,418 euros). The Italian average is 24,895 euros.
Doberdò del Lago is in climate zone E, with 2,365 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 92 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Doberdò del Lago has 3 schools and 1 pharmacy. The Overture Maps data also lists 1 sports facility and 2 parks and green areas.
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 4.4% of the land in Doberdò del Lago, 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
Doberdò del Lago is not among the radon priority areas designated by the Regione Friuli Venezia Giulia in 2024. According to the ISPRA map, the estimated radon emission in the municipality is medium. 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 Doberdò del Lago.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Doberdò del Lago: 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
Doberdò del Lago 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 18 inhabited census areas in Doberdò del Lago. Half of the residents live in areas scoring 68 or more.
Residents by band
- fair 22.6%
- good 77.4%
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 031003. The text on this page is generated automatically from the data.