Buying a home in Castelseprio
1,309 residents at the 2021 census, 644 buildings and 3.8 km² of territory, Lombardia.
Castelseprio is in seismic zone 4: the least hazardous zone: the probability of an earthquake is very low. According to ISPRA’s mosaic, 0.3% of the territory of Castelseprio has high or very high landslide hazard (P3 and P4), with 0% of the residents. 7.3% of the territory of Castelseprio is in the flood area of the medium-probability scenario (P2), with 0% of the residents.
Find your address in Castelseprio
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Castelseprio compared
| ISPRA indicator | Castelseprio | VA | Lombardia |
|---|---|---|---|
| Landslide, very high hazard (P4) | 0.3% | 1.5% | 3.7% |
| Landslide, high hazard (P3) | 0% | 0.6% | 2.9% |
| Landslide, areas of attention | 0% | 0% | 0% |
| Residents in landslide areas P3-P4 | 0% | 0.3% | 0.4% |
| Buildings in landslide areas P3-P4 | 0% | 0.4% | 1.1% |
| Flood, high probability (P3) | 4.9% | 10.8% | 7.9% |
| Flood, medium probability (P2) | 7.3% | 13.1% | 10.2% |
| Flood, low probability (P1) | 13.1% | 16% | 20.3% |
| Residents in P2 flood areas | 0% | 2.2% | 4.4% |
| Buildings in P2 flood areas | 0.2% | 2.3% | 4.7% |
Questions
Which seismic zone is Castelseprio in?
Castelseprio is in seismic zone 4: the least hazardous zone: the probability of an earthquake is very low.
How much of Castelseprio is in landslide class P3/P4?
According to ISPRA’s mosaic, 0.3% of the territory of Castelseprio has high or very high landslide hazard (P3 and P4), with 0% of the residents. By share of territory with landslide hazard P3-P4, Castelseprio ranks 54th of 136 municipalities in the province of Varese.
How much of Castelseprio is in flood scenario P2?
7.3% of the territory of Castelseprio is in the flood area of the medium-probability scenario (P2), with 0% of the residents. By share of territory in the P2 flood area, Castelseprio ranks 55th of 136 municipalities in the province of Varese.
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 |
|---|---|---|---|
| Lonate Ceppino | 4 | 0% | 4.1% |
| Carnago | 4 | 0% | 1.7% |
| Gornate Olona | 4 | 0% | 6.1% |
| Cairate | 4 | 0.2% | 15.3% |
| Caronno Varesino | 4 | 0.1% | 1.7% |
| Solbiate Arno | 4 | 0% | 8.3% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
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