Sevelen: observed built density
Municipality in the canton of St. Gallen · FSO no. 3275 · Parcel data as of July 2025
- Parcels
- 2’793
1 % of the canton
- Municipal zones
- 22
- Median utilization
- 35 %
Canton: 58 %
Switzerland: 10 %
- Median GFZ
- 0.10
Canton: 0.28
Switzerland: 0.09
- Median height
- 8.9 m
Canton: 9.6 m
Switzerland: 9.5 m
- Median floors
- 2.2
Canton: 2.4
Switzerland: 2.3
About Sevelen
Sevelen is a municipality in the canton of St. Gallen. The parcel data lists 2’793 parcels in 22 municipal zone types. The zone types with the most parcels are BauG Landwirtschaftszone (741), BauG Wohnzone WE (400) and BauG Wohnzone W2 (382).
The median parcel is built to a volume utilization of 35 %; half of the parcels lie between 6 % and 97 %. The canton median is 58 %, so Sevelen sits below it.
The median building height is 8.9 m at 2.2 floors, and the median floor-area ratio (GFZ) is 0.10. Parcels built in the last 20 years reach a mean volume utilization of 104 % (263 parcels), higher than the 59 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| BauG Landwirtschaftszone | 741 | 0 % |
| BauG Wohnzone WE | 400 | 94 % |
| BauG Wohnzone W2 | 382 | 84 % |
| Hinweis.Wald | 238 | 0 % |
| BauG Dorfkernzone DK2 | 181 | 72 % |
| BauG übriges Gemeindegebiet allg | 159 | 10 % |
| Hinweis.Verkehrsflaeche iB | 127 | 0 % |
| BauG Wohnzone W3 | 93 | 92 % |
| Hinweis.Verkehrsflaeche aB | 69 | 0 % |
| BauG Wohn-Gewerbezone WG3 | 68 | 64 % |
| BauG Kernzone | 67 | 96 % |
| BauG Gewerbe-Industriezone GI B | 63 | 60 % |
| Other zones (10) | 205 | - |
Volume utilization (ratioV)
Of the 2’765 parcels with a value, half lie between 6 % and 97 %. The median is 35 % and the mean 55 %.
Share of parcels by range
- below 50 %54 %
- 50 % to below 100 %23 %
- 100 % to below 150 %16 %
- 150 % and above8 %
Floor-area ratio (GFZ)
Of the 2’765 parcels with a value, half lie between 0.05 and 0.45. The median is 0.10 and the mean 0.26.
Share of parcels by range
- below 0.5079 %
- 0.50 to below 1.0018 %
- 1.00 to below 1.503 %
- 1.50 and above1 %
Building height
Of the 1’559 parcels with a value, half lie between 7.4 m and 10.2 m. The median is 8.9 m and the mean 8.9 m.
Share of parcels by range
- below 8 m32 %
- 8 m to below 12 m60 %
- 12 m to below 20 m8 %
- 20 m and above0 %
Number of floors
Of the 1’159 parcels with a value, half lie between 1.8 and 2.8. The median is 2.2 and the mean 2.3.
Share of parcels by range
- below 211 %
- 2 to below 355 %
- 3 to below 533 %
- 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 | 2’793 | 59 % |
| Last 60 years | 962 | 102 % |
| Last 40 years | 632 | 102 % |
| Last 20 years | 263 | 104 % |
| Last 15 years | 193 | 107 % |
| Last 10 years | 130 | 110 % |
| Last 5 years | 71 | 106 % |
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).