Delley-Portalban: observed built density
Municipality in the canton of Fribourg · FSO no. 2051 · 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
- 615
1 % of the canton
- Municipal zones
- 9
- Median utilization
- 91 %
Canton: 86 %
Switzerland: 10 %
- Median GFZ
- 0.28
Canton: 0.36
Switzerland: 0.09
- Median height
- 7.1 m
Canton: 8.9 m
Switzerland: 9.5 m
- Median floors
- 1.9
Canton: 2.3
Switzerland: 2.3
About Delley-Portalban
Delley-Portalban is a municipality in the canton of Fribourg. The parcel data lists 615 parcels in 9 municipal zone types. The zone types with the most parcels are Zone résidentielle à faible denté I (351), Zone de centre (127) and Zone résidentielle faible densité II (94).
The median parcel is built to a volume utilization of 91 %; half of the parcels lie between 55 % and 135 %. The canton median is 86 %, close to the level of Delley-Portalban.
The median building height is 7.1 m at 1.9 floors, and the median floor-area ratio (GFZ) is 0.28. Parcels built in the last 20 years reach a mean volume utilization of 113 % (165 parcels), close to the 110 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Zone résidentielle à faible denté I | 351 | 85 % |
| Zone de centre | 127 | 122 % |
| Zone résidentielle faible densité II | 94 | 117 % |
| Zone résidentielle | 18 | 0 % |
| Zone d'intérêt général | 11 | 0 % |
| Zone touristique et sportive | 7 | 4 % |
| Zone de village | 5 | 100 % |
| Zone en attente d'approbation | 1 | 100 % |
| Zone spéciale "Port de pêche" | 1 | 100 % |
Volume utilization (ratioV)
Of the 607 parcels with a value, half lie between 55 % and 135 %. The median is 91 % and the mean 107 %.
Share of parcels by range
- below 50 %22 %
- 50 % to below 100 %34 %
- 100 % to below 150 %25 %
- 150 % and above19 %
Floor-area ratio (GFZ)
Of the 607 parcels with a value, half lie between 0.17 and 0.45. The median is 0.28 and the mean 0.35.
Share of parcels by range
- below 0.5080 %
- 0.50 to below 1.0017 %
- 1.00 to below 1.503 %
- 1.50 and above1 %
Building height
Of the 535 parcels with a value, half lie between 6.1 m and 8.3 m. The median is 7.1 m and the mean 7.3 m.
Share of parcels by range
- below 8 m73 %
- 8 m to below 12 m24 %
- 12 m to below 20 m3 %
- 20 m and above0 %
Number of floors
Of the 429 parcels with a value, half lie between 1.5 and 2.3. The median is 1.9 and the mean 1.9.
Share of parcels by range
- below 222 %
- 2 to below 366 %
- 3 to below 513 %
- 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 | 615 | 110 % |
| Last 60 years | 417 | 117 % |
| Last 40 years | 306 | 126 % |
| Last 20 years | 165 | 113 % |
| Last 15 years | 125 | 123 % |
| Last 10 years | 60 | 151 % |
| Last 5 years | 19 | 153 % |
Open the map at Delley-Portalban
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).