Living in Trasaghis: hamlets on Lake Cavazzo, where home sales doubled in 2025
Trasaghis holds the south shore of Lake Cavazzo and five hamlets at the foot of the mountains, home to 2,091 people. Sales reached 32 homes in 2025, double the 2024 count, with OMI valuing ordinary homes at €440/m² to €750/m².
Published 10 November 2026

Driving times
- Udine
- 34 min
- Trieste
- 1 h 19 min
- Trieste Airport
- 55 min
- Klagenfurt
- 1 h 35 min
- The nearest sea
- 1 h 2 min
- The nearest slopes
- 49 min
- The motorway
- 9 min
- A station with trains
- 6 min
Health care
- 24h emergency room
- 21 min
- zone: 21 min
- Hub hospital
- 32 min
- zone: 32 min
Sunshine
- Direct sun on 21 December
- 7 h 40 min
- zone: 7 h 13 min
- Hours taken by the mountains
- 55 min
Prices (OMI)
- Standard homes
- €590/m²
- zone: €750/m²
- Detached houses
- €660/m²
- zone: €720/m²
- m² for €200,000
- 340 m²
- zone: 265 m²
- Rent
- €2.1/m² a month
Climate (1991–2020)
- January average
- 3.4 °C
- July highs
- 29.1 °C
- Rain per year
- 2,320 mm
- Frost days
- 74
Risks and broadband
- Seismic zone
- 1
- Buildings in flood area (P2)
- 6.5%
- Households with fibre
- 97.6%
- zone: 78.0%

Who lives here
- Residents
- 2,091
- Since 2001
- -17%
- Average age
- 51.0
- Empty homes (2011)
- 33%
Minutes of direct sun, day by day
direct sun with a flat horizon

Five hamlets between the lake and the Tagliamento
Trasaghis is really six villages: the main one, Braulins, Peonis, Alesso, Oncedis and Avasinis. The land climbs from 157 m to 1,577 m, and the Region classes all of it as mountain territory.
- A shrinking population: 2,091 residents, -17% on 2001; average age 51.0, with 31% over 65.
- Homes without residents: 33% at the 2011 census, holiday homes included (what that figure counts).
- Owners: in 2011, 86% of families were owner-occupiers.
- Services (OpenStreetMap): a chemist and 2 Poste Italiane branches, plus primary and lower-secondary schooling; for a big shop you leave the municipality (the nearest supermarket is 2.6 km away).
- Visitors: 14,800 nights in 2025, 66% of them in summer, 73% by foreign guests.
Our Gemonese guide covers Gemona, Venzone and Bordano next door.
Lake Cavazzo and the power station
It is the largest natural lake in Friuli Venezia Giulia, shared between Trasaghis, Bordano and Cavazzo Carnico. Since the 1950s it has taken the outflow of the Somplago hydroelectric plant: water at around 4 °C in winter and 12 °C in summer, which according to the experts appointed by the three councils has cooled the lake by about 5 °C and thinned out its fish and plant life. Their technical panel, set up under a 2019 regional law, has set out options for bringing the lake back towards its natural state.
Swimming is allowed: ARPA monitors two spots on the Trasaghis shore, one in front of the campsite and one further east. If you are buying for the summer, expect the water to be colder than it would be without the power station.
Homes: among the lowest values around, and rising sales
In the Revenue Agency's regional statistics, Trasaghis goes from 16 to 32 sales between 2024 and 2025: among the 8 towns of the foothill district, only Gemona records more, with Forgaria level. Values have not moved: in 2024 OMI redrew the zones, but today's ranges are those of five years ago.
- Detached houses: €600/m²–€900/m² in the central zone.
- Budget: €200,000 buys 340 m² at OMI values, more than in Gemona (220 m²).
- Letting: OMI rent of €2.1/m² a month, so 4.3% gross on paper. The town appears on the list of storm-damaged municipalities signed off by the special commissioner in February 2010, after the floods of December 2009; landlords on a «concordato» lease may therefore choose to be taxed at 10% (the full list).
- Buying to live here: in a fully mountain municipality the regional first-home grant is €15,500 (€20,000 under 36), but as a rule you need 5 of the last 8 years' residence in the region (who qualifies).
- ILIA 2026: the council charges 0.80% on second homes, lets and empty properties (resolution of 17 December 2025), 0.70% on the one second home that qualifies for the reduced rate (how).
| Trasaghis | Bordano | Gemona del Friuli | Venzone | Osoppo | Cavazzo Carnico | |
|---|---|---|---|---|---|---|
| Standard homes (€/m²) | €590/m² | €590/m² | €910/m² | €750/m² | €760/m² | €585/m² |
| Homes sold in 2025 | 32 | — | 113 | — | — | — |
| Fibre to the home | 97.6% | 99.2% | 99.4% | 14.2% | 15.1% | 85.8% |
| Sun on 21 December | 7 h 40 min | 5 h 37 min | 7 h 43 min | 5 h 15 min | 8 h 33 min | 4 h 46 min |
| 24h emergency room | 21 min | 19 min | 23 min | 19 min | 16 min | 8 min |
| From Udine | 34 min | 38 min | 33 min | 37 min | 28 min | 40 min |
Earthquake, water, landslides and sun, hamlet by hamlet
- Seismic risk: zone 1; in 1976 intensity here reached 9-10 on the Mercalli scale (what it means).
- Floods: 6.5% of buildings are in medium flood-hazard areas, above the regional median (4.9%).
- Landslides: 3.9% of buildings fall inside the two worst landslide classes, P3 and P4 (the hazard maps).
- Sun on 21 December: 7 h 40 min at the town hall and 7 h 40 min in Braulins; 6 h 27 min in Peonis, 5 h 39 min in Alesso and just 3 h 44 min in Avasinis. Between hamlets a few kilometres apart the gap is measured in hours, not minutes (the calculation).
Distances and connections
- A&E: Tolmezzo, 21 min. Of all the municipalities in our mountain area, Trasaghis is the closest to Udine's hub hospital: 32 min (hospitals).
- Rail: the nearest trains leave from Gemona, 6 min by car, running through to Udine.
- Roads: Gemona-Osoppo motorway junction 9 min, Udine 34 min, Klagenfurt 1 h 35 min.
- Snow and sea: Zoncolan 49 min, Nassfeld in Austria 54 min; the sea at Sistiana 1 h 2 min.
Questions
Can you swim in Lake Cavazzo?
Yes: ARPA samples two bathing areas, both on the Trasaghis shore. The water is cold, though, because the lake receives the outflow of the Somplago power station.
What does a house cost in Trasaghis?
For January to June 2026, OMI quotes €520/m²–€750/m² for the central zone, €440/m²–€650/m² elsewhere in the municipality; detached houses in the centre €600/m²–€900/m².
Which part of Trasaghis gets the most winter sun?
The main village and Braulins, which see about 7 h 40 min of sunshine at the winter solstice; Avasinis gets 3 h 44 min.
Sources and method
Written with AIChecked against the sources before publication.
The figures on this page come from:
- ISTAT — Altimetria dei comuni dal modello digitale del terreno (31/12/2021) (data as of 2026-10-07) · CC BY 4.0
- ISTAT SITUAS — comuni, caratteristiche del territorio, dimensione, aree di policy (data as of 2026-10-07) · CC BY 4.0
- ISTAT — popolazione residente (censimenti 2001, 2011, permanente), indicatori demografici 2024, stranieri residenti (data as of 2026-10-22) · CC BY 4.0
- ISTAT — Censimento della popolazione e delle abitazioni 2011: abitazioni occupate e non occupate, epoca di costruzione degli edifici (data as of 2026-10-22) · CC BY 4.0
- OpenStreetMap (Overpass) per negozi, ambulatori, poste e banche; Ministero della Salute per le farmacie (data as of 2026-10-22) · dati © OpenStreetMap contributors, ODbL; open data del Ministero della Salute IODL 2.0
- Regione FVG — Servizio statistica, movimento turistico per comune (arrivi e presenze 2023–2025, mensile) (data as of 2026-10-22) · dati regionali, riuso con citazione (v. note/turismo.md)
- Regione FVG — Tavolo tecnico «Laboratorio Lago dei Tre Comuni» (L.R. 13/2019, art. 4, cc. 35-40), relazione conclusiva degli esperti dei Comuni di Cavazzo Carnico, Trasaghis e Bordano (data as of 2026-11-10)
- Agenzia delle Entrate – OMI, Statistiche regionali 2026 Friuli-Venezia Giulia (dati 2025): Tabelle 1, 3, 4, 8 e Figura 6 (elaborazione FriuliVillas) (data as of 2026-10-22) · CC BY 4.0, citazione obbligatoria «Agenzia delle Entrate – OMI»
- Agenzia delle Entrate — OMI, Statistiche regionali Friuli Venezia Giulia 2025: compravendite (NTN) e intensità del mercato (IMI) per comune (data as of 2026-10-22) · riuso con citazione della fonte (Agenzia delle Entrate – OMI)
- Agenzia delle Entrate — Osservatorio del Mercato Immobiliare (OMI): quotazioni per zona e tipologia; valore per comune = mediana dei punti medi delle zone OMI, stato normale (data as of 2026-10-22) · riuso con citazione della fonte (Agenzia delle Entrate – OMI)
- D.Lgs. 14 marzo 2011, n. 23, art. 3 cc. 1, 2, 6: cedolare secca sugli affitti abitativi (21 %; 10 % sui contratti a canone concordato nei comuni ad alta tensione abitativa; per il D.L. 47/2014, art. 9 c. 2-bis, anche nei comuni colpiti da calamità con stato d'emergenza deliberato fra il 28/05/2009 e il 27/05/2014) (data as of 2026-10-25) · legge: pubblico dominio (art. 5 L. 633/1941), testo da normattiva.it
- Regione FVG — contributi per l'acquisto della prima casa (DPReg 144/2016 artt. 7-8, testo coordinato 08/08/2025; L.R. 1/2016 abrogata dalla L.R. 6/2026, regole in vigore fino ai nuovi regolamenti) (data as of 2026-10-22) · atti ufficiali
- Regione FVG — Portale ILIA (Imposta locale immobiliare autonoma, L.R. 17/2022): aliquote 2026 dalle delibere comunali (210 comuni dal Portale ILIA, 5 dal MEF) (data as of 2026-10-29) · atti ufficiali: le aliquote sono fatti ripubblicabili
- Dipartimento della Protezione civile — classificazione sismica dei comuni (aggiornata al 31/05/2025) (data as of 2026-10-22) · CC BY 4.0
- INGV — Database Macrosismico Italiano DBMI15 v4.0 (Locati et al., 2022) (data as of 2026-10-22) · CC BY 4.0
- ISPRA IdroGEO — indicatori di rischio per comune (frane: mosaicatura PAI 2024; alluvioni: mosaicatura 2020) (data as of 2026-10-22) · CC BY 4.0
- Ore di sole diretto calcolate da FriuliVillas sull'orizzonte del modello del terreno Copernicus GLO-30 (raggi fino a 60 km, curvatura e rifrazione) e sulla posizione del Sole (algoritmo NOAA), dalla sede municipale a 2 m dal suolo, cielo sereno. Produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. Copernicus e l'ESA non sono responsabili di questo uso dei dati né lo approvano. (data as of 2026-10-22) · licenza Copernicus DEM GLO-30
- FriuliVillas — ore di sole diretto calcolate per 1140 frazioni dei 102 comuni di montagna e di collina interna, stesso metodo dei comuni, inverno 2026/27; punti delle frazioni © OpenStreetMap contributors (data as of 2026-10-22) · punti OpenStreetMap ODbL 1.0; terreno licenza Copernicus DEM GLO-30
- Tempi in auto senza traffico (OSRM su OpenStreetMap) dalla sede municipale ai pronto soccorso e agli ospedali hub; elenco delle strutture dalle aziende sanitarie ASUFC, ASUGI, ASFO e dalla L.R. 22/2019 (data as of 2026-10-22) · dati © OpenStreetMap contributors, ODbL; fatti dagli atti pubblici
- Tempi in auto senza traffico (OSRM su OpenStreetMap, estratto Geofabrik del 20/10/2026) dalla sede municipale alle spiagge, ai poli sciistici, a Pordenone e Gorizia, agli svincoli autostradali e alle stazioni con treni (orari Trenitalia/FUC verificati per un giorno feriale) (data as of 2026-10-22) · dati © OpenStreetMap contributors, ODbL
- OSRM (router.project-osrm.org) su dati OpenStreetMap — tempi in auto senza traffico dalla sede municipale (data as of 2026-10-07) · dati © OpenStreetMap contributors, ODbL
- ARPA FVG — dataset «Acqua - Acque di Balneazione» (dati.friuliveneziagiulia.it fpj6-y9vk), aree con prelievi nel 2026 (data as of 2026-10-22) · IODL 2.0
- AGCOM — Broadband Map, copertura delle reti fisse per comune (rilevazione al 05/10/2026); Infratel Italia — piano Banda ultra larga (data as of 2026-10-22) · CC BY 4.0; Infratel: riuso con citazione

- ARPA FVG – OSMER: normali climatiche 1991–2020 sulla griglia regionale a 500 m e sulle stazioni (temperature, pioggia, gelo, caldo, neve, vento) (data as of 2026-10-22) · ARPA FVG - OSMER e GRN, CC BY-SA 3.0 IT: i valori del clima ripubblicati qui restano sotto la stessa licenza
- Agenzia delle Entrate – OMI, Trasaghis zones: B1 and D1 in the first half of 2021, B2 and R3 in the first half of 2026 (2026-11-10)
- Agenzia delle Entrate – OMI, Statistiche regionali 2026 Friuli-Venezia Giulia: «Pedemontana», Trasaghis 32 sales (16 in 2024), IMI 2.11% (2026-11-10)
- Regione FVG — technical panel «Laboratorio Lago dei Tre Comuni» (L.R. 13/2019), experts' final report (2026-11-10)
- ARPA FVG — bathing waters: the two Lake Cavazzo areas in Trasaghis, 2026 season (2026-10-22)
- Portale ILIA – Regione FVG: Comune di Trasaghis, resolution no. 55 of 17/12/2025, 2026 rates (2026-10-29)
- Special commissioner's decree no. 2/CD7/2010 of 26 February 2010: towns hit by the December 2009 rains (BUR FVG no. 11, 17/03/2010) (2026-10-31)
- D.L. 47/2014, art. 9(2-bis): 10% flat tax on concordato leases in towns with a 2009–2014 emergency (2026-10-31)