St. Margrethen: observed built density
Municipality in the canton of St. Gallen · FSO no. 3236 · Parcel data as of July 2025
- Parcels
- 1’960
1 % of the canton
- Municipal zones
- 27
- Median utilization
- 67 %
Canton: 58 %
Switzerland: 10 %
- Median GFZ
- 0.37
Canton: 0.28
Switzerland: 0.09
- Median height
- 9.5 m
Canton: 9.6 m
Switzerland: 9.5 m
- Median floors
- 2.4
Canton: 2.4
Switzerland: 2.3
About St. Margrethen
St. Margrethen is a municipality in the canton of St. Gallen. The parcel data lists 1’960 parcels in 27 municipal zone types. The zone types with the most parcels are BauG Wohnzone WE (410), BauG Wohnzone W2 (304) and BauG Wohn-Gewerbezone WG3 (251).
The median parcel is built to a volume utilization of 67 %; half of the parcels lie between 8 % and 105 %. The canton median is 58 %, so St. Margrethen sits above it.
The median building height is 9.5 m at 2.4 floors, and the median floor-area ratio (GFZ) is 0.37. Parcels built in the last 20 years reach a mean volume utilization of 110 % (240 parcels), higher than the 72 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| BauG Wohnzone WE | 410 | 77 % |
| BauG Wohnzone W2 | 304 | 98 % |
| BauG Wohn-Gewerbezone WG3 | 251 | 74 % |
| BauG Landwirtschaftszone | 190 | 0 % |
| BauG Wohn-Gewerbezone WG2 | 126 | 94 % |
| BauG Wohnzone W3 | 125 | 80 % |
| Hinweis.Verkehrsflaeche iB | 97 | 0 % |
| BauG Wohnzone W4 | 75 | 57 % |
| Hinweis.Wald | 62 | 0 % |
| BauG Kernzone K4 | 52 | 69 % |
| BauG Zone für öffentliche Bauten und Anlagen | 46 | 33 % |
| BauG Industriezone IA | 43 | 103 % |
| Other zones (15) | 179 | - |
Volume utilization (ratioV)
Of the 1’927 parcels with a value, half lie between 8 % and 105 %. The median is 67 % and the mean 69 %.
Share of parcels by range
- below 50 %41 %
- 50 % to below 100 %31 %
- 100 % to below 150 %20 %
- 150 % and above9 %
Floor-area ratio (GFZ)
Of the 1’927 parcels with a value, half lie between 0.08 and 0.65. The median is 0.37 and the mean 0.43.
Share of parcels by range
- below 0.5064 %
- 0.50 to below 1.0026 %
- 1.00 to below 1.508 %
- 1.50 and above2 %
Building height
Of the 1’309 parcels with a value, half lie between 8.2 m and 11.5 m. The median is 9.5 m and the mean 10.0 m.
Share of parcels by range
- below 8 m22 %
- 8 m to below 12 m59 %
- 12 m to below 20 m18 %
- 20 m and above2 %
Number of floors
Of the 999 parcels with a value, half lie between 1.9 and 3.1. The median is 2.4 and the mean 2.5.
Share of parcels by range
- below 25 %
- 2 to below 351 %
- 3 to below 541 %
- 5 and above3 %
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 | 1’960 | 72 % |
| Last 60 years | 795 | 105 % |
| Last 40 years | 519 | 111 % |
| Last 20 years | 240 | 110 % |
| Last 15 years | 159 | 121 % |
| Last 10 years | 108 | 130 % |
| Last 5 years | 50 | 151 % |
Open the map at St. Margrethen
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).