Sierre: observed built density
Municipality in the canton of Valais · FSO no. 6248 · Parcel data as of July 2025
The parcel data covers only part of the land in the canton of Valais, so figures here may be incomplete.
- Parcels
- 9’587
2 % of the canton
- Municipal zones
- 43
- Median utilization
- 7 %
Canton: 7 %
Switzerland: 10 %
- Median GFZ
- 0.07
Canton: 0.07
Switzerland: 0.09
- Median height
- 9.0 m
Canton: 8.4 m
Switzerland: 9.5 m
- Median floors
- 2.5
Canton: 2.3
Switzerland: 2.3
About Sierre
Sierre is a municipality in the canton of Valais. The parcel data lists 9’587 parcels in 43 municipal zone types. The zone types with the most parcels are AGRICOLE-PROTEGEE (2’614), FAIBLE-DENSITE (1’541) and ENSEMBLE-DE-VALEUR (1’401).
The median parcel is built to a volume utilization of 7 %; half of the parcels lie between 4 % and 62 %. The canton median is 7 %, close to the level of Sierre.
The median building height is 9.0 m at 2.5 floors, and the median floor-area ratio (GFZ) is 0.07. Parcels built in the last 20 years reach a mean volume utilization of 115 % (477 parcels), higher than the 49 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| AGRICOLE-PROTEGEE | 2’614 | 0 % |
| FAIBLE-DENSITE | 1’541 | 62 % |
| ENSEMBLE-DE-VALEUR | 1’401 | 57 % |
| AGRICOLE | 1’036 | 0 % |
| MOYENNE-DENSITE | 734 | 50 % |
| MOYENNE-DENSITE à aménager | 275 | 7 % |
| CENTRE à aménager | 258 | 56 % |
| SENSIBLE | 257 | 0 % |
| INTERET-GENERAL A | 250 | 0 % |
| INDUSTRIELLE | 167 | 36 % |
| MIXTE | 162 | 0 % |
| FORTE-DENSITE à aménager | 151 | 0 % |
| Other zones (31) | 741 | - |
Volume utilization (ratioV)
Of the 9’505 parcels with a value, half lie between 4 % and 62 %. The median is 7 % and the mean 46 %.
Share of parcels by range
- below 50 %73 %
- 50 % to below 100 %10 %
- 100 % to below 150 %7 %
- 150 % and above10 %
Floor-area ratio (GFZ)
Of the 9’504 parcels with a value, half lie between 0.04 and 0.34. The median is 0.07 and the mean 0.32.
Share of parcels by range
- below 0.5081 %
- 0.50 to below 1.008 %
- 1.00 to below 1.504 %
- 1.50 and above7 %
Building height
Of the 3’097 parcels with a value, half lie between 7.1 m and 11.6 m. The median is 9.0 m and the mean 9.8 m.
Share of parcels by range
- below 8 m37 %
- 8 m to below 12 m41 %
- 12 m to below 20 m20 %
- 20 m and above3 %
Number of floors
Of the 2’601 parcels with a value, half lie between 1.9 and 3.3. The median is 2.5 and the mean 2.8.
Share of parcels by range
- below 27 %
- 2 to below 344 %
- 3 to below 538 %
- 5 and above10 %
Building age cohorts
Mean volume utilization of the parcels built inside each window, from all years on record down to the last five. The windows overlap: the last 20 years include the last 5.
| Built in | Parcels | Mean utilization |
|---|---|---|
| All years | 9’587 | 49 % |
| Last 60 years | 1’317 | 120 % |
| Last 40 years | 1’006 | 116 % |
| Last 20 years | 477 | 115 % |
| Last 15 years | 281 | 122 % |
| Last 10 years | 164 | 129 % |
| Last 5 years | 74 | 115 % |
How to read this page
room shows observed built density: what has been built on the parcels, not what the zoning permits. Volume utilization (ratioV) compares the built volume of a parcel with the reference volume of its municipal zone type. The floor-area ratio (GFZ) is floor area divided by parcel area; building height and number of floors are taken from the buildings on a parcel. Figures pool all municipal zones of the area. Medians and quartiles are read from bins 10 points (ratioV), 0.1 (GFZ), 2 m (height) and 1 floor wide, so they are exact to within one bin; means are exact. A parcel counts in a distribution only when the parcel data has a value for it. The floors distribution leaves out parcels without a building (0 floors).