Sion
Municipality in the canton of Valais · FSO no. 6266
Parcel data from Jul 2025, statistics computed on 29 Sept 2026.
For Sion (VS), the parcel data holds a measured building height for 5’219 parcels. On a typical parcel the tallest building is 9.1 m high, and on 19 in 20 parcels it is 21 m or lower.
Key figures
- Median building height
- 9.1 m
- Canton: 8.4 m
- Switzerland: 9.5 m
- Median floors
- 2
Canton: 2
Switzerland: 2
- Tallest building
- 44.8 m
Canton: 100.3 m
Switzerland: 221.3 m
- Parcels measured
- 5’219
3.5% of the canton
- 25 m or taller
- 73
1.4% of measured parcels
About Sion
Sion is a municipality in the canton of Valais. For Sion, the parcel data holds a measured building height for 5’219 parcels. On half of them the tallest building is at most 9.1 m, on three quarters at most 12.3 m, and on 19 in 20 at most 21 m.
For Sion, the median building height, 9.1 m, is close to the canton median of 8.4 m. The tallest building measures 44.8 m. 20 parcels have a building of 30 m or taller.
The median floor count is 2, and the building with the most floors has 14. By median building height, Sion ranks 17th of 119 municipalities in the canton with complete height data.
Building heights
The height of the tallest building on each parcel, over the 5’219 parcels with a measured height. Each percentile is the height that share of parcels stays at or below.
| Figure | Here | Canton | Switzerland |
|---|---|---|---|
| P25 (lower quartile) | 7.3 m | 6.9 m | 7.8 m |
| P50 (median) | 9.1 m | 8.4 m | 9.5 m |
| P75 (upper quartile) | 12.3 m | 10.1 m | 11.5 m |
| P95 | 21.0 m | 14.8 m | 16.6 m |
| Tallest building | 44.8 m | 100.3 m | 221.3 m |
Parcels by building height
Floors
The number of floors of the building with the most floors on each parcel, over the 4’856 parcels with a floor count. Median: 2, most floors: 14.
Parcels by number of floors
Tallest buildings
Parcels whose tallest building reaches at least the height in each row. The rows are cumulative: a parcel with a 60 m building also counts in every row below 60 m. The tallest building measures 44.8 m.
| Tallest building | Parcels | Share of measured |
|---|---|---|
| 15 m or taller | 894 | 17.1% |
| 25 m or taller | 73 | 1.4% |
| 30 m or taller | 20 | 0.4% |
| 50 m or taller | 0 | 0% |
| 100 m or taller | 0 | 0% |
Building height map for Sion
roofs maps building height for every parcel in Sion. Heights come from swisstopo swissBUILDINGS3D and the number of floors from the federal building register (GWR); where no height was measured, the map estimates it from the floors and marks it with a ~.
Explore more data for Sion
- Parcel statistics and zones Sionin geopool
- Building zones and density Sionin room
- Building age Sionin roots
- OEREB extract Sionin lookup
- Solar potential Sionin soolar
- Points of interest and accessibility Sionin scoore
- Tax rates Sionin taxoo