Grächen: observed built density
Municipality in the canton of Valais · FSO no. 6285 · 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
- 2’938
< 1 % of the canton
- Municipal zones
- 25
- Median utilization
- 8 %
Canton: 7 %
Switzerland: 10 %
- Median GFZ
- 0.08
Canton: 0.07
Switzerland: 0.09
- Median height
- 8.6 m
Canton: 8.4 m
Switzerland: 9.5 m
- Median floors
- 2.3
Canton: 2.3
Switzerland: 2.3
About Grächen
Grächen is a municipality in the canton of Valais. The parcel data lists 2’938 parcels in 25 municipal zone types. The zone types with the most parcels are Wohn- und Ferienhauszone W1 (2. Erschliessungsetappe) (481), Landwirtschaftszone 2. Priorität (462) and Wohnzone W2 (351).
The median parcel is built to a volume utilization of 8 %; half of the parcels lie between 4 % and 81 %. The canton median is 7 %, so Grächen sits above it.
The median building height is 8.6 m at 2.3 floors, and the median floor-area ratio (GFZ) is 0.08. Parcels built in the last 20 years reach a mean volume utilization of 120 % (60 parcels), higher than the 57 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Wohn- und Ferienhauszone W1 (2. Erschliessungsetappe) | 481 | 0 % |
| Landwirtschaftszone 2. Priorität | 462 | 0 % |
| Wohnzone W2 | 351 | 60 % |
| Dorfzone D | 333 | 46 % |
| Wohnzone W3 | 236 | 63 % |
| Landwirtschaftszone 1. Priorität | 221 | 0 % |
| Wald hinweisender Charakter gemäss Luftbildauswertung | 153 | 0 % |
| Wohnzone W2 (2. Erschliessungsetappe) | 144 | 0 % |
| Übriges Gemeindegebiet | 97 | 0 % |
| Verkehrszone (Strassen, Wege, Plätze) VZ | 90 | 0 % |
| Wohn- und Ferienhauszone W1 | 74 | 105 % |
| Wohn- und Ferienhauszone W1 Eplus (Energie) | 59 | 0 % |
| Other zones (13) | 237 | - |
Volume utilization (ratioV)
Of the 2’908 parcels with a value, half lie between 4 % and 81 %. The median is 8 % and the mean 52 %.
Share of parcels by range
- below 50 %67 %
- 50 % to below 100 %12 %
- 100 % to below 150 %10 %
- 150 % and above11 %
Floor-area ratio (GFZ)
Of the 2’908 parcels with a value, half lie between 0.04 and 0.44. The median is 0.08 and the mean 0.27.
Share of parcels by range
- below 0.5078 %
- 0.50 to below 1.0014 %
- 1.00 to below 1.506 %
- 1.50 and above3 %
Building height
Of the 1’162 parcels with a value, half lie between 7.0 m and 10.5 m. The median is 8.6 m and the mean 9.1 m.
Share of parcels by range
- below 8 m42 %
- 8 m to below 12 m45 %
- 12 m to below 20 m13 %
- 20 m and above< 1 %
Number of floors
Of the 730 parcels with a value, half lie between 1.8 and 3.2. The median is 2.3 and the mean 2.6.
Share of parcels by range
- below 28 %
- 2 to below 350 %
- 3 to below 536 %
- 5 and above6 %
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 | 2’938 | 57 % |
| Last 60 years | 431 | 132 % |
| Last 40 years | 183 | 137 % |
| Last 20 years | 60 | 120 % |
| Last 15 years | 41 | 124 % |
| Last 10 years | 26 | 116 % |
| Last 5 years | 15 | 87 % |
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).