Buying a home in Brenna
2,177 residents at the 2021 census, 514 buildings and 4.8 km² of territory, Lombardia.
Brenna is in seismic zone 4: the least hazardous zone: the probability of an earthquake is very low. According to ISPRA’s mosaic, 15.2% of the territory of Brenna has high or very high landslide hazard (P3 and P4), with 2.7% of the residents. 2.9% of the territory of Brenna is in the flood area of the medium-probability scenario (P2), with 0.1% of the residents.
Find your address in Brenna
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Brenna compared
| ISPRA indicator | Brenna | CO | Lombardia |
|---|---|---|---|
| Landslide, very high hazard (P4) | 0.1% | 3.2% | 3.7% |
| Landslide, high hazard (P3) | 15.1% | 4.9% | 2.9% |
| Landslide, areas of attention | 0% | 0% | 0% |
| Residents in landslide areas P3-P4 | 2.7% | 0.9% | 0.4% |
| Buildings in landslide areas P3-P4 | 2.7% | 2.2% | 1.1% |
| Flood, high probability (P3) | 1.6% | 9.2% | 7.9% |
| Flood, medium probability (P2) | 2.9% | 10.1% | 10.2% |
| Flood, low probability (P1) | 2.9% | 11.4% | 20.3% |
| Residents in P2 flood areas | 0.1% | 1.7% | 4.4% |
| Buildings in P2 flood areas | 0% | 2.1% | 4.7% |
Questions
Which seismic zone is Brenna in?
Brenna is in seismic zone 4: the least hazardous zone: the probability of an earthquake is very low.
How much of Brenna is in landslide class P3/P4?
According to ISPRA’s mosaic, 15.2% of the territory of Brenna has high or very high landslide hazard (P3 and P4), with 2.7% of the residents. By share of territory with landslide hazard P3-P4, Brenna ranks 13th of 147 municipalities in the province of Como.
How much of Brenna is in flood scenario P2?
2.9% of the territory of Brenna is in the flood area of the medium-probability scenario (P2), with 0.1% of the residents. By share of territory in the P2 flood area, Brenna ranks 53rd of 147 municipalities in the province of Como, tied with 2 others.
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 |
|---|---|---|---|
| Alzate Brianza | 4 | 0% | 0% |
| Carugo | 4 | 0.2% | 4% |
| Arosio | 4 | 0% | 0% |
| Inverigo | 4 | 0% | 7.2% |
| Lurago d’Erba | 4 | 0% | 0% |
| Anzano del Parco | 4 | 0% | 0% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on