Port-Valais: observed built density
Municipality in the canton of Valais · FSO no. 6154 · 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
- 2’353
< 1 % of the canton
- Municipal zones
- 32
- Median utilization
- 9 %
Canton: 7 %
Switzerland: 10 %
- Median GFZ
- 0.08
Canton: 0.07
Switzerland: 0.09
- Median height
- 7.5 m
Canton: 8.4 m
Switzerland: 9.5 m
- Median floors
- 2.0
Canton: 2.3
Switzerland: 2.3
About Port-Valais
Port-Valais is a municipality in the canton of Valais. The parcel data lists 2’353 parcels in 32 municipal zone types. The zone types with the most parcels are Zone agricole 1 (518), Zone habitation moyenne densité A (412) and Zone habitation faible densité (319).
The median parcel is built to a volume utilization of 9 %; half of the parcels lie between 4 % and 87 %. The canton median is 7 %, so Port-Valais sits above it.
The median building height is 7.5 m at 2.0 floors, and the median floor-area ratio (GFZ) is 0.08. Parcels built in the last 20 years reach a mean volume utilization of 143 % (340 parcels), higher than the 91 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Zone agricole 1 | 518 | 0 % |
| Zone habitation moyenne densité A | 412 | 88 % |
| Zone habitation faible densité | 319 | 77 % |
| Aire forestière | 298 | 0 % |
| Zone habitation forte densité | 197 | 89 % |
| Zone village | 132 | 39 % |
| Zone viticole | 111 | 0 % |
| Zone de transport | 91 | 0 % |
| Zone industrielle | 59 | 43 % |
| Zone habitation moyenne densité B | 44 | 64 % |
| Zone de constructions et d’installations publiques B | 38 | - |
| Zone agricole 2 | 30 | 0 % |
| Other zones (19) | 104 | - |
Volume utilization (ratioV)
Of the 2’317 parcels with a value, half lie between 4 % and 87 %. The median is 9 % and the mean 57 %.
Share of parcels by range
- below 50 %62 %
- 50 % to below 100 %18 %
- 100 % to below 150 %14 %
- 150 % and above7 %
Floor-area ratio (GFZ)
Of the 2’316 parcels with a value, half lie between 0.04 and 0.34. The median is 0.08 and the mean 0.22.
Share of parcels by range
- below 0.5088 %
- 0.50 to below 1.009 %
- 1.00 to below 1.502 %
- 1.50 and above2 %
Building height
Of the 1’001 parcels with a value, half lie between 6.3 m and 9.3 m. The median is 7.5 m and the mean 8.0 m.
Share of parcels by range
- below 8 m61 %
- 8 m to below 12 m31 %
- 12 m to below 20 m8 %
- 20 m and above< 1 %
Number of floors
Of the 752 parcels with a value, half lie between 1.7 and 2.4. The median is 2.0 and the mean 2.1.
Share of parcels by range
- below 214 %
- 2 to below 365 %
- 3 to below 519 %
- 5 and above2 %
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 | 2’353 | 91 % |
| Last 60 years | 849 | 137 % |
| Last 40 years | 650 | 139 % |
| Last 20 years | 340 | 143 % |
| Last 15 years | 235 | 164 % |
| Last 10 years | 121 | 128 % |
| Last 5 years | 32 | 151 % |
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).