Widnau: observed built density
Municipality in the canton of St. Gallen · FSO no. 3238 · Parcel data as of July 2025
- Parcels
- 2’975
2 % of the canton
- Municipal zones
- 25
- Median utilization
- 75 %
Canton: 58 %
Switzerland: 10 %
- Median GFZ
- 0.43
Canton: 0.28
Switzerland: 0.09
- Median height
- 8.6 m
Canton: 9.6 m
Switzerland: 9.5 m
- Median floors
- 2.1
Canton: 2.4
Switzerland: 2.3
About Widnau
Widnau is a municipality in the canton of St. Gallen. The parcel data lists 2’975 parcels in 25 municipal zone types. The zone types with the most parcels are Wohnzone W 10.5A (739), Wohnzone W 10.5 (501) and Wohnzone W 13.5A (478).
The median parcel is built to a volume utilization of 75 %; half of the parcels lie between 43 % and 104 %. The canton median is 58 %, so Widnau sits above it.
The median building height is 8.6 m at 2.1 floors, and the median floor-area ratio (GFZ) is 0.43. Parcels built in the last 20 years reach a mean volume utilization of 112 % (477 parcels), higher than the 76 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Wohnzone W 10.5A | 739 | 84 % |
| Wohnzone W 10.5 | 501 | 84 % |
| Wohnzone W 13.5A | 478 | 81 % |
| Wohnzone W 13.5 | 214 | 100 % |
| Hinweis.Verkehrsflaeche iB | 189 | 0 % |
| Wohn Gewerbe Zone WG 14 | 173 | 73 % |
| Wohnzone W 16.5 | 167 | 67 % |
| Landwirtschaftszone | 141 | 0 % |
| Wohnzone W 9.5A | 99 | 78 % |
| Zone f oeff Bauten u Anlagen | 61 | 23 % |
| Wohn Gewerbe Zone WG 17 | 43 | 56 % |
| Arbeitszone A 17 | 42 | 97 % |
| Other zones (13) | 128 | - |
Volume utilization (ratioV)
Of the 2’943 parcels with a value, half lie between 43 % and 104 %. The median is 75 % and the mean 75 %.
Share of parcels by range
- below 50 %29 %
- 50 % to below 100 %43 %
- 100 % to below 150 %20 %
- 150 % and above8 %
Floor-area ratio (GFZ)
Of the 2’942 parcels with a value, half lie between 0.25 and 0.62. The median is 0.43 and the mean 0.46.
Share of parcels by range
- below 0.5061 %
- 0.50 to below 1.0033 %
- 1.00 to below 1.505 %
- 1.50 and above1 %
Building height
Of the 2’363 parcels with a value, half lie between 7.3 m and 9.7 m. The median is 8.6 m and the mean 8.8 m.
Share of parcels by range
- below 8 m37 %
- 8 m to below 12 m55 %
- 12 m to below 20 m8 %
- 20 m and above< 1 %
Number of floors
Of the 2’016 parcels with a value, half lie between 1.7 and 2.4. The median is 2.1 and the mean 2.2.
Share of parcels by range
- below 27 %
- 2 to below 372 %
- 3 to below 519 %
- 5 and above1 %
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 | 2’975 | 76 % |
| Last 60 years | 1’907 | 97 % |
| Last 40 years | 1’309 | 104 % |
| Last 20 years | 477 | 112 % |
| Last 15 years | 282 | 122 % |
| Last 10 years | 167 | 123 % |
| Last 5 years | 57 | 128 % |
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).