Onsernone
Municipality in the canton of Ticino · FSO no. 5136
Parcel data from Nov 2026, statistics computed on 29 Oct 2026.
Open map at the Onsernone centerThe parcel data lists 2’796 parcels in Onsernone, covering 43.7 km². 66% of them have at least one registered building. The median parcel measures 1’436 m².
Key figures
- Parcels
- 2’796
- 1% of the canton
- Total area
- 43.7 km²
- 1.8% of the canton
- Median area
- 1’436 m²
- Canton: 718 m²
- Switzerland: 881 m²
- Built share
- 66%
- Canton: 42.8%
- Switzerland: 51%
- Median year built
- 1932
- Canton: 1958
- Switzerland: 1975
About Onsernone
Onsernone is a municipality in the canton of Ticino and holds 1% of the canton's parcels in the data, on 1.8% of their area. The median parcel in Onsernone measures 1’436 m², larger than the canton median of 718 m². Onsernone is more built-up than the canton as a whole: 66% of its parcels have a building, against 42.8% across the canton.
The zones with the most parcels are Bosco (55.5%), Pascolo (20.6%) and Zona agricola (13.3%). In total, Onsernone uses 4 zone designations.
According to the building register, Onsernone has 2’252 buildings with 1’534 dwellings, 0.7 dwellings per building on average. Most residential buildings are single-family houses (83.2%). Non-residential buildings account for 44.8% of all buildings.
Built parcels most often have their newest building from 1920 to 1945 (9.5% of them), and 0.3% have one from 2001 or later. The median year built, 1932, is earlier than in the canton as a whole (1958).
Built and unbuilt parcels
Built: 1’845 (66%)
Unbuilt: 951 (34%)
Parcels by zone
| Zone | Parcels | Area | Built |
|---|---|---|---|
| Bosco | 1’552 | 26.58 km² | 99.9% |
| Pascolo | 577 | 7.50 km² | 0.2% |
| Zona agricola | 373 | 2.86 km² | 0.5% |
| bosco | 294 | 6.78 km² | 99.3% |
Zone names are the municipal designations. A canton lists each wording separately.
Building stock
The building register lists 2’252 buildings with 1’534 dwellings here; 1’002 of them are single-family houses.
- Buildings
- 2’252
- Dwellings
- 1’534
- Single-family houses
- 1’002
- Building volume
- 459’624 m³
Buildings by category
Construction periods
Built parcels by construction period of their newest building
Maps and geodata for Onsernone
geopool works as a GIS and geoportal for Onsernone. Its parcel map shows the parcels of the official cadastral survey with their area, their zone from the municipal zoning plan and their buildings, on swisstopo maps. Building zones, the property map and the geodata of each parcel open on the geopool map. The ÖREB extract of a parcel (public-law restrictions on landownership) is in lookup.
More municipalities in the canton of Ticino
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- Lema6’531 parcels
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- Maggia7’870 parcels
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