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Benken (SG): observed built density

Municipality in the canton of St. Gallen · FSO no. 3312 · Parcel data as of July 2025

Parcels
1’313

1 % of the canton

Municipal zones
20
Median utilization
55 %

Canton: 58 %

Switzerland: 10 %

Median GFZ
0.22

Canton: 0.28

Switzerland: 0.09

Median height
9.5 m

Canton: 9.6 m

Switzerland: 9.5 m

Median floors
2.3

Canton: 2.4

Switzerland: 2.3

About Benken (SG)

Benken (SG) is a municipality in the canton of St. Gallen. The parcel data lists 1’313 parcels in 20 municipal zone types. The zone types with the most parcels are BauG Landwirtschaftszone (465), BauG Wohn-Gewerbezone WG2 (185) and BauG Wohnzone WE (175).

The median parcel is built to a volume utilization of 55 %; half of the parcels lie between 7 % and 101 %. The canton median is 58 %, close to the level of Benken (SG).

The median building height is 9.5 m at 2.3 floors, and the median floor-area ratio (GFZ) is 0.22. Parcels built in the last 20 years reach a mean volume utilization of 123 % (211 parcels), higher than the 83 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
BauG Landwirtschaftszone46510 %
BauG Wohn-Gewerbezone WG2185100 %
BauG Wohnzone WE17569 %
BauG Wohnzone W217088 %
BauG Kernzone K36854 %
Hinweis.Verkehrsflaeche aB540 %
Hinweis.Wald390 %
BauG Wohnzone W32898 %
BauG Grünzone Naturschutz260 %
Hinweis.Verkehrsflaeche iB260 %
BauG Wohn-Gewerbezone WG32390 %
BauG Gewerbe-Industriezone GI A1980 %
Other zones (8)35-

Volume utilization (ratioV)

Of the 1’293 parcels with a value, half lie between 7 % and 101 %. The median is 55 % and the mean 77 %.

0 %300 %+

Share of parcels by range

  • below 50 %47 %
  • 50 % to below 100 %27 %
  • 100 % to below 150 %15 %
  • 150 % and above11 %

Floor-area ratio (GFZ)

Of the 1’291 parcels with a value, half lie between 0.05 and 0.52. The median is 0.22 and the mean 0.31.

0.003.00+

Share of parcels by range

  • below 0.5074 %
  • 0.50 to below 1.0023 %
  • 1.00 to below 1.502 %
  • 1.50 and above1 %

Building height

Of the 860 parcels with a value, half lie between 8.2 m and 11.1 m. The median is 9.5 m and the mean 9.6 m.

0 m60 m+

Share of parcels by range

  • below 8 m22 %
  • 8 m to below 12 m65 %
  • 12 m to below 20 m12 %
  • 20 m and above< 1 %

Number of floors

Of the 588 parcels with a value, half lie between 1.8 and 3.0. The median is 2.3 and the mean 2.4.

016+

Share of parcels by range

  • below 210 %
  • 2 to below 348 %
  • 3 to below 542 %
  • 5 and above< 1 %

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 inParcelsMean utilization
All years1’31383 %
Last 60 years604112 %
Last 40 years457118 %
Last 20 years211123 %
Last 15 years111134 %
Last 10 years47158 %
Last 5 years16172 %

Open the map at Benken (SG)

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).