Dolegna del Collio: 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 Dolegna del Collio
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: Localita' Mernico 1, Dolegna del Collio.
Dolegna del Collio, vineyards on the Slovenian border
Dolegna del Collio lies in the northern part of the Collio, the hill country around Gorizia planted with vineyards and known for its white wines, and it runs along the Judrio stream, which here marks the border with Slovenia. The territory is made up of small hamlets, wine estates and woods, with the valley floor just above ninety metres and higher ridges behind. Cormons and Cividale del Friuli are the nearby towns for services, Gorizia and Udine the main cities.
In 2023 there were 295 residents, 95 fewer than the 390 of 2011, a fall of 24.4%. The estimated average age is 52.7, against 48.0 for the province of Gorizia, and over-65s make up 30.8%. Foreign residents account for 1.4%.
One feature matters a great deal to buyers: like the whole Gorizia area, Dolegna uses the tavolare land registry system inherited from Austrian rule. Ownership passes when it is entered in the land book (libro fondiario), kept by the land registry office, and the notary has to check the property's position there. The Revenue Agency's cadastral maps are still published, and the report goes from the address to the land parcel.
Earthquake risk needs considering. Dolegna is in seismic zone 2 under the Civil Protection classification, like 10 of the 25 municipalities in the province, and expected ground acceleration in the built-up area is about 0.224 g, a high value. With stone houses in the hamlets, ask for paperwork on any structural work.
Along the Judrio and on the steep vineyard slopes, flooding and landslides are assessed plot by plot: the report reads the official maps at the address.
Key points
- Collio hills, along the Judrio on the Slovenian border.
- Tavolare land registry: ownership passes via the land book.
- 295 residents, down 24.4% since 2011.
- Seismic zone 2, high expected acceleration (0.224 g).
Overview
Dolegna del Collio is a municipality in the province of Gorizia, in Friuli-Venezia Giulia. At the end of 2023 it had 295 residents, among the smallest in the province (25 of 25).
Earthquakes
For Italy's Civil Protection Department, Dolegna del Collio is in seismic zone 2, a zone where strong earthquakes are possible. Only 10 of 25 municipalities in the province are in zone 2.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.224 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Dolegna del Collio, the building matters a great deal: ask for the design year, whether it met the 2008 seismic standards, and whether any seismic retrofit has been carried out.
Population
Compared with the 2011 census, the resident population has fallen by 24.4%. The estimated average age is 53 years, higher than the province average (48). 31% of residents are over 65 (the regional figure is 27%). Foreign residents make up 1.4% of the population. On average, a household has 2.1 members.
Income and climate
In tax year 2024, taxpayers in Dolegna del Collio declared an average taxable income of 21,829 euros, below the provincial average (24,418 euros). The Italian average is 24,895 euros.
Dolegna del Collio is in climate zone E, with 2,282 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 90 metres above sea level.
Services
The data shows no schools within the municipality, against a provincial average of 1.0 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 6.6% of the land in Dolegna del Collio, 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
Dolegna del Collio 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 one contaminated site, or site still under investigation, in Dolegna del Collio. The report tells you whether one is close to the address.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Dolegna del Collio: 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
Dolegna del Collio 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 13 inhabited census areas in Dolegna del Collio. Half of the residents live in areas scoring 61 or more.
Residents by band
- fair 78.5%
- good 21.5%
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 031004. The text on this page is generated automatically from the data.