Treppo Grande: what to know before buying a home
A municipality in the province of Udine, Friuli-Venezia Giulia. Official data on earthquakes, population, services and transport.
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Search for an address in Treppo Grande
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 Dante Alighieri 1, Treppo Grande.
Treppo Grande, the moraine hills north of Udine
Treppo Grande lies on the moraine hills of Friuli, the belt of gentle ridges left by ancient glaciers north of Udine, among fields, copses and scattered hamlets. The municipality is made up of several villages and is largely residential and agricultural; Udine, with its jobs and services, is within daily driving distance.
Many houses in this area were rebuilt or repaired after the 1976 earthquake, which hit the Friulian hills hard. For a buyer it matters whether a building dates from the reconstruction, built to earthquake-resistant standards, or is an older house that was never strengthened: the year of construction and the planning records give the answer. Alongside the rebuilt houses there are newer detached homes with gardens.
Istat, the national statistics office, counts 1,715 residents in 2023, 1.5% fewer than in 2011. The population is older: an average age of 50.2 against 48.5 in the province, with over-65s at 31.6% against 27.8%. Foreign residents are 3.4%.
In the province of Udine, 19 municipalities are in seismic zone 1, 71 in zone 2 and 44 in zone 3. Treppo Grande is in zone 2, with an expected ground acceleration in the built-up area of 0.248 g, a high value. The practical advice is to ask to see the structural design and the final inspection certificate.
The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps. The report finds the land parcel from the address and checks the official landslide and flood maps, which change from point to point among hills and hollows.
Key points
- Friulian moraine hills, north of Udine.
- Over-65s at 31.6%, against 27.8% in the province.
- Seismic zone 2, expected acceleration 0.248 g.
- Ask whether the house was rebuilt to seismic standards.
Overview
Treppo Grande is a municipality in the province of Udine, in Friuli-Venezia Giulia. At the end of 2023 it had 1,715 residents, ranked 81 of 134 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Treppo Grande is in seismic zone 2, a zone where strong earthquakes are possible. Most municipalities in the province (71 of 134) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.248 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Treppo Grande, 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 1.5%. The estimated average age is 50 years, higher than the province average (49). 32% of residents are over 65 (the regional figure is 27%). Foreign residents make up 3.4% of the population. On average, a household has 2.1 members.
Income and climate
In tax year 2024, taxpayers in Treppo Grande declared an average taxable income of 24,385 euros, in line with the province (25,508 euros). The Italian average is 24,895 euros.
Treppo Grande is in climate zone E, with 2,506 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 231 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Treppo Grande has 2 schools and 1 pharmacy. The Overture Maps data also lists 1 grocery shop and 1 sports facility.
The data shows no healthcare facilities within the municipality, against a provincial average of 0.6 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 9.7% of the land in Treppo Grande, compared with 6.8% in the province and 8.1% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Treppo Grande 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 Treppo Grande.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Treppo Grande: 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 Treppo Grande 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 13 inhabited census areas in Treppo Grande. Half of the residents live in areas scoring 66 or more.
Residents by band
- fair 28.3%
- good 71.7%
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 030126. The text on this page is generated automatically from the data.