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Sennwald: observed built density

Municipality in the canton of St. Gallen · FSO no. 3274 · Parcel data as of July 2025

Parcels
3’882

2 % of the canton

Municipal zones
24
Median utilization
10 %

Canton: 58 %

Switzerland: 10 %

Median GFZ
0.08

Canton: 0.28

Switzerland: 0.09

Median height
9.0 m

Canton: 9.6 m

Switzerland: 9.5 m

Median floors
2.1

Canton: 2.4

Switzerland: 2.3

About Sennwald

Sennwald is a municipality in the canton of St. Gallen. The parcel data lists 3’882 parcels in 24 municipal zone types. The zone types with the most parcels are BauG Landwirtschaftszone (1’074), BauG Wohnzone W2 (673) and Hinweis.Wald (402).

The median parcel is built to a volume utilization of 10 %; half of the parcels lie between 5 % and 92 %. The canton median is 58 %, so Sennwald sits below it.

The median building height is 9.0 m at 2.1 floors, and the median floor-area ratio (GFZ) is 0.08. Parcels built in the last 20 years reach a mean volume utilization of 117 % (375 parcels), higher than the 59 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
BauG Landwirtschaftszone1’0740 %
BauG Wohnzone W267389 %
Hinweis.Wald4020 %
BauG Kernzone K2278100 %
Hinweis.Verkehrsflaeche aB2740 %
BauG übriges Gemeindegebiet allg2526 %
Hinweis.Verkehrsflaeche iB2010 %
BauG Wohn-Gewerbezone WG318763 %
BauG Wohn-Gewerbezone WG211285 %
BauG Wohnzone WE9775 %
Hinweis.Gewaesser730 %
BauG Gewerbe-Industriezone GI A4994 %
Other zones (12)210-

Volume utilization (ratioV)

Of the 3’842 parcels with a value, half lie between 5 % and 92 %. The median is 10 % and the mean 56 %.

0 %300 %+

Share of parcels by range

  • below 50 %60 %
  • 50 % to below 100 %18 %
  • 100 % to below 150 %12 %
  • 150 % and above10 %

Floor-area ratio (GFZ)

Of the 3’842 parcels with a value, half lie between 0.04 and 0.39. The median is 0.08 and the mean 0.21.

0.003.00+

Share of parcels by range

  • below 0.5083 %
  • 0.50 to below 1.0014 %
  • 1.00 to below 1.502 %
  • 1.50 and above1 %

Building height

Of the 1’837 parcels with a value, half lie between 7.6 m and 10.5 m. The median is 9.0 m and the mean 9.1 m.

0 m60 m+

Share of parcels by range

  • below 8 m30 %
  • 8 m to below 12 m62 %
  • 12 m to below 20 m8 %
  • 20 m and above< 1 %

Number of floors

Of the 1’251 parcels with a value, half lie between 1.7 and 2.7. The median is 2.1 and the mean 2.2.

016+

Share of parcels by range

  • below 211 %
  • 2 to below 360 %
  • 3 to below 528 %
  • 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 inParcelsMean utilization
All years3’88259 %
Last 60 years1’266111 %
Last 40 years911114 %
Last 20 years375117 %
Last 15 years276118 %
Last 10 years178127 %
Last 5 years87134 %

Open the map at Sennwald

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).