Buying a home in Gressan
3,390 residents at the 2021 census, 1,353 buildings and 25.3 km² of territory, Valle d’Aosta/Vallée d’Aoste.
Gressan is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2. According to ISPRA’s mosaic, 45.4% of the territory of Gressan has high or very high landslide hazard (P3 and P4), with 15.3% of the residents. 15% of the territory of Gressan is in the flood area of the medium-probability scenario (P2), with 13.8% of the residents.
Find your address in Gressan
The preview is free: the parcel, the seismic zone and the types of flags. The full dossier costs €29 including applicable VAT.
Gressan compared
| ISPRA indicator | Gressan | AO | Valle d'Aosta/Vallée d'Aoste |
|---|---|---|---|
| Landslide, very high hazard (P4) | 15.2% | 48.9% | 48.9% |
| Landslide, high hazard (P3) | 30.2% | 34.8% | 34.8% |
| Landslide, areas of attention | 0% | 0% | 0% |
| Residents in landslide areas P3-P4 | 15.3% | 10.9% | 10.9% |
| Buildings in landslide areas P3-P4 | 12.6% | 22.6% | 22.6% |
| Flood, high probability (P3) | 4% | 5% | 5% |
| Flood, medium probability (P2) | 15% | 7.3% | 7.3% |
| Flood, low probability (P1) | 22.1% | 9.2% | 9.2% |
| Residents in P2 flood areas | 13.8% | 9.1% | 9.1% |
| Buildings in P2 flood areas | 12.3% | 11.1% | 11.1% |
Questions
Which seismic zone is Gressan in?
Gressan is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2.
How much of Gressan is in landslide class P3/P4?
According to ISPRA’s mosaic, 45.4% of the territory of Gressan has high or very high landslide hazard (P3 and P4), with 15.3% of the residents. By share of territory with landslide hazard P3-P4, Gressan ranks 69th of 74 municipalities in the province of Valle d’Aosta.
How much of Gressan is in flood scenario P2?
15% of the territory of Gressan is in the flood area of the medium-probability scenario (P2), with 13.8% of the residents. By share of territory in the P2 flood area, Gressan ranks 4th 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 |
|---|---|---|---|
| Jovençan | 3 | 49.9% | 6.6% |
| Charvensod | 3 | 68.7% | 4.9% |
| Pollein | 3 | 59.4% | 16% |
| Aymavilles | 3 | 86.1% | 10.5% |
| Aosta | 3 | 15.5% | 5.6% |
| Brissogne | 3 | 68.5% | 5.4% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on