Jonschwil: observed built density
Municipality in the canton of St. Gallen · FSO no. 3405 · Parcel data as of July 2025
- Parcels
- 1’725
1 % of the canton
- Municipal zones
- 23
- Median utilization
- 67 %
Canton: 58 %
Switzerland: 10 %
- Median GFZ
- 0.33
Canton: 0.28
Switzerland: 0.09
- Median height
- 9.6 m
Canton: 9.6 m
Switzerland: 9.5 m
- Median floors
- 2.3
Canton: 2.4
Switzerland: 2.3
About Jonschwil
Jonschwil is a municipality in the canton of St. Gallen. The parcel data lists 1’725 parcels in 23 municipal zone types. The zone types with the most parcels are BauG Wohnzone W2b (293), BauG Wohnzone W2a (250) and BauG Landwirtschaftszone (244).
The median parcel is built to a volume utilization of 67 %; half of the parcels lie between 7 % and 105 %. The canton median is 58 %, so Jonschwil sits above it.
The median building height is 9.6 m at 2.3 floors, and the median floor-area ratio (GFZ) is 0.33. Parcels built in the last 20 years reach a mean volume utilization of 118 % (235 parcels), higher than the 84 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| BauG Wohnzone W2b | 293 | 95 % |
| BauG Wohnzone W2a | 250 | 85 % |
| BauG Landwirtschaftszone | 244 | 0 % |
| Hinweis.Wald | 177 | 0 % |
| BauG Wohn-Gewerbezone WG3 | 140 | 90 % |
| BauG Wohn-Gewerbezone WG2 | 123 | 93 % |
| Hinweis.Verkehrsflaeche aB | 114 | 0 % |
| Hinweis.Verkehrsflaeche iB | 88 | 0 % |
| BauG Kernzone K3 | 69 | 76 % |
| BauG Gewerbe-Industriezone GI A | 63 | 123 % |
| BauG Wohnzone W3 | 42 | 78 % |
| BauG Kernzone K2 | 35 | 115 % |
| Other zones (11) | 87 | - |
Volume utilization (ratioV)
Of the 1’702 parcels with a value, half lie between 7 % and 105 %. The median is 67 % and the mean 79 %.
Share of parcels by range
- below 50 %42 %
- 50 % to below 100 %29 %
- 100 % to below 150 %19 %
- 150 % and above10 %
Floor-area ratio (GFZ)
Of the 1’702 parcels with a value, half lie between 0.06 and 0.57. The median is 0.33 and the mean 0.37.
Share of parcels by range
- below 0.5068 %
- 0.50 to below 1.0025 %
- 1.00 to below 1.506 %
- 1.50 and above2 %
Building height
Of the 1’086 parcels with a value, half lie between 8.1 m and 11.3 m. The median is 9.6 m and the mean 9.6 m.
Share of parcels by range
- below 8 m24 %
- 8 m to below 12 m62 %
- 12 m to below 20 m14 %
- 20 m and above0 %
Number of floors
Of the 795 parcels with a value, half lie between 1.8 and 3.0. The median is 2.3 and the mean 2.4.
Share of parcels by range
- below 27 %
- 2 to below 352 %
- 3 to below 540 %
- 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 | 1’725 | 84 % |
| Last 60 years | 904 | 119 % |
| Last 40 years | 656 | 122 % |
| Last 20 years | 235 | 118 % |
| Last 15 years | 140 | 123 % |
| Last 10 years | 75 | 138 % |
| Last 5 years | 32 | 131 % |
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).