Siviriez: observed built density
Municipality in the canton of Fribourg · FSO no. 2099 · Parcel data as of July 2025
The parcel data covers only part of the land in the canton of Fribourg, so figures here may be incomplete.
- Parcels
- 578
1 % of the canton
- Municipal zones
- 8
- Median utilization
- 88 %
Canton: 86 %
Switzerland: 10 %
- Median GFZ
- 0.34
Canton: 0.36
Switzerland: 0.09
- Median height
- 9.0 m
Canton: 8.9 m
Switzerland: 9.5 m
- Median floors
- 2.2
Canton: 2.3
Switzerland: 2.3
About Siviriez
Siviriez is a municipality in the canton of Fribourg. The parcel data lists 578 parcels in 8 municipal zone types. The zone types with the most parcels are ZONE RESIDENTIELLE FAIBLE DENSITE (300), ZONE CENTRE VILLAGE (215) and ZONE D'lNTERET GENERAL (29).
The median parcel is built to a volume utilization of 88 %; half of the parcels lie between 60 % and 126 %. The canton median is 86 %, close to the level of Siviriez.
The median building height is 9.0 m at 2.2 floors, and the median floor-area ratio (GFZ) is 0.34. Parcels built in the last 20 years reach a mean volume utilization of 139 % (195 parcels), higher than the 114 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| ZONE RESIDENTIELLE FAIBLE DENSITE | 300 | 91 % |
| ZONE CENTRE VILLAGE | 215 | 86 % |
| ZONE D'lNTERET GENERAL | 29 | 38 % |
| ZONE MIXTE | 22 | 81 % |
| ZONE D'ACTIVITE | 9 | 86 % |
| ZONE D'ACTIVITE LAITIERE | 1 | 100 % |
| ZONE DE VERDURE | 1 | 0 % |
| ZONE RÉSIDENTIELLE MOYENNE DENSITÉ | 1 | 0 % |
Volume utilization (ratioV)
Of the 570 parcels with a value, half lie between 60 % and 126 %. The median is 88 % and the mean 103 %.
Share of parcels by range
- below 50 %20 %
- 50 % to below 100 %37 %
- 100 % to below 150 %27 %
- 150 % and above15 %
Floor-area ratio (GFZ)
Of the 570 parcels with a value, half lie between 0.22 and 0.50. The median is 0.34 and the mean 0.42.
Share of parcels by range
- below 0.5075 %
- 0.50 to below 1.0020 %
- 1.00 to below 1.502 %
- 1.50 and above3 %
Building height
Of the 477 parcels with a value, half lie between 7.7 m and 10.3 m. The median is 9.0 m and the mean 9.1 m.
Share of parcels by range
- below 8 m29 %
- 8 m to below 12 m62 %
- 12 m to below 20 m9 %
- 20 m and above0 %
Number of floors
Of the 354 parcels with a value, half lie between 1.8 and 2.8. The median is 2.2 and the mean 2.3.
Share of parcels by range
- below 26 %
- 2 to below 360 %
- 3 to below 534 %
- 5 and above0 %
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 | 578 | 114 % |
| Last 60 years | 379 | 126 % |
| Last 40 years | 328 | 129 % |
| Last 20 years | 195 | 139 % |
| Last 15 years | 122 | 163 % |
| Last 10 years | 77 | 202 % |
| Last 5 years | 43 | 238 % |
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).