Buying a home in Gressoney-La-Trinité
332 residents at the 2021 census, 435 buildings and 66.5 km² of territory, Valle d’Aosta/Vallée d’Aoste.
Gressoney-La-Trinité is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2. According to ISPRA’s mosaic, 87.5% of the territory of Gressoney-La-Trinité has high or very high landslide hazard (P3 and P4), with 23.2% of the residents. 4.1% of the territory of Gressoney-La-Trinité is in the flood area of the medium-probability scenario (P2), with 17% of the residents.
Find your address in Gressoney-La-Trinité
The preview is free: the parcel, the seismic zone and the types of flags. The full dossier costs €29 including applicable VAT.
Gressoney-La-Trinité compared
| ISPRA indicator | Gressoney-La-Trinité | AO | Valle d'Aosta/Vallée d'Aoste |
|---|---|---|---|
| Landslide, very high hazard (P4) | 78.2% | 48.9% | 48.9% |
| Landslide, high hazard (P3) | 9.3% | 34.8% | 34.8% |
| Landslide, areas of attention | 0% | 0% | 0% |
| Residents in landslide areas P3-P4 | 23.2% | 10.9% | 10.9% |
| Buildings in landslide areas P3-P4 | 27.8% | 22.6% | 22.6% |
| Flood, high probability (P3) | 3.5% | 5% | 5% |
| Flood, medium probability (P2) | 4.1% | 7.3% | 7.3% |
| Flood, low probability (P1) | 5% | 9.2% | 9.2% |
| Residents in P2 flood areas | 17% | 9.1% | 9.1% |
| Buildings in P2 flood areas | 17.3% | 11.1% | 11.1% |
Questions
Which seismic zone is Gressoney-La-Trinité in?
Gressoney-La-Trinité is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2.
How much of Gressoney-La-Trinité is in landslide class P3/P4?
According to ISPRA’s mosaic, 87.5% of the territory of Gressoney-La-Trinité has high or very high landslide hazard (P3 and P4), with 23.2% of the residents. By share of territory with landslide hazard P3-P4, Gressoney-La-Trinité ranks 27th of 74 municipalities in the province of Valle d’Aosta.
How much of Gressoney-La-Trinité is in flood scenario P2?
4.1% of the territory of Gressoney-La-Trinité is in the flood area of the medium-probability scenario (P2), with 17% of the residents. By share of territory in the P2 flood area, Gressoney-La-Trinité ranks 63rd of 74 municipalities in the province of Valle d’Aosta.
Guides: seismic zone · landslides and floods · what to check before an offer. OMI prices: GEOPOI (how to read them).
Nearby municipalities
| Municipality | Seismic zone | Landslide P3-P4 | Flood P2 |
|---|---|---|---|
| Ayas | 3 | 83.3% | 5.5% |
| Alagna Valsesia | 3 | 7.6% | 2.6% |
| Gressoney-Saint-Jean | 3 | 91.8% | 6.9% |
| Macugnaga | 3 | 4.4% | 2.3% |
| Brusson | 3 | 84.3% | 12.6% |
| Chamois | 3 | 68.3% | 4.7% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on