Bürchen: observed built density
Municipality in the canton of Valais · FSO no. 6193 · 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
- 6’105
1 % of the canton
- Municipal zones
- 31
- Median utilization
- 6 %
Canton: 7 %
Switzerland: 10 %
- Median GFZ
- 0.06
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 Bürchen
Bürchen is a municipality in the canton of Valais. The parcel data lists 6’105 parcels in 31 municipal zone types. The zone types with the most parcels are Landwirtschaftszonen 2. Priorität (1’287), Landwirtschaftszonen 1. Priorität (958) and Wohnzone W3 (717).
The median parcel is built to a volume utilization of 6 %; half of the parcels lie between 3 % and 9 %. The canton median is 7 %, close to the level of Bürchen.
The median building height is 7.5 m at 2.0 floors, and the median floor-area ratio (GFZ) is 0.06. Parcels built in the last 20 years reach a mean volume utilization of 119 % (300 parcels), higher than the 32 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszonen 2. Priorität | 1’287 | 0 % |
| Landwirtschaftszonen 1. Priorität | 958 | 0 % |
| Wohnzone W3 | 717 | 0 % |
| Ferienhauszone F2 | 624 | 75 % |
| Fruchtfolgeflächen | 500 | 0 % |
| Fruchtfolgeflächen / Geschützte Landwirtsch. Zonen | 492 | 0 % |
| Geschützte Landwirtschaftszone GLZ | 405 | 0 % |
| Wald (provisorisch) | 322 | 0 % |
| Dorfzone D | 311 | 34 % |
| Wohnzone W3 A | 79 | 0 % |
| Wohnzone W2 | 68 | 27 % |
| Wald (gemäss waldkataster) | 62 | - |
| Other zones (18) | 280 | - |
Volume utilization (ratioV)
Of the 6’053 parcels with a value, half lie between 3 % and 9 %. The median is 6 % and the mean 27 %.
Share of parcels by range
- below 50 %84 %
- 50 % to below 100 %5 %
- 100 % to below 150 %5 %
- 150 % and above6 %
Floor-area ratio (GFZ)
Of the 6’053 parcels with a value, half lie between 0.03 and 0.09. The median is 0.06 and the mean 0.12.
Share of parcels by range
- below 0.5091 %
- 0.50 to below 1.004 %
- 1.00 to below 1.503 %
- 1.50 and above1 %
Building height
Of the 1’066 parcels with a value, half lie between 6.6 m and 9.1 m. The median is 7.5 m and the mean 7.9 m.
Share of parcels by range
- below 8 m63 %
- 8 m to below 12 m34 %
- 12 m to below 20 m3 %
- 20 m and above0 %
Number of floors
Of the 778 parcels with a value, half lie between 1.6 and 2.4. The median is 2.0 and the mean 2.0.
Share of parcels by range
- below 221 %
- 2 to below 358 %
- 3 to below 521 %
- 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 | 6’105 | 32 % |
| Last 60 years | 890 | 145 % |
| Last 40 years | 507 | 133 % |
| Last 20 years | 300 | 119 % |
| Last 15 years | 261 | 118 % |
| Last 10 years | 52 | 116 % |
| Last 5 years | 36 | 111 % |
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).