roomOpen the map

Muolen: observed built density

Municipality in the canton of St. Gallen · FSO no. 3202 · Parcel data as of July 2025

Parcels
894

< 1 % of the canton

Municipal zones
13
Median utilization
9 %

Canton: 58 %

Switzerland: 10 %

Median GFZ
0.08

Canton: 0.28

Switzerland: 0.09

Median height
10.3 m

Canton: 9.6 m

Switzerland: 9.5 m

Median floors
2.3

Canton: 2.4

Switzerland: 2.3

About Muolen

Muolen is a municipality in the canton of St. Gallen. The parcel data lists 894 parcels in 13 municipal zone types. The zone types with the most parcels are BauG Landwirtschaftszone (485), Hinweis.Wald (138) and BauG Wohnzone W2a (76).

The median parcel is built to a volume utilization of 9 %; half of the parcels lie between 4 % and 96 %. The canton median is 58 %, so Muolen sits below it.

The median building height is 10.3 m at 2.3 floors, and the median floor-area ratio (GFZ) is 0.08. Parcels built in the last 20 years reach a mean volume utilization of 158 % (99 parcels), higher than the 85 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
BauG Landwirtschaftszone4850 %
Hinweis.Wald1380 %
BauG Wohnzone W2a7691 %
BauG Wohnzone W2b5598 %
BauG Kernzone K24894 %
BauG Wohn-Gewerbezone WG23089 %
BauG Gewerbe-Industriezone GI A14143 %
BauG Weilerzone1490 %
Hinweis.Verkehrsflaeche aB140 %
Hinweis.Verkehrsflaeche iB70 %
BauG Zone für öffentliche Bauten und Anlagen6141 %
BauG übriges Gemeindegebiet allg40 %
Other zones (1)3-

Volume utilization (ratioV)

Of the 880 parcels with a value, half lie between 4 % and 96 %. The median is 9 % and the mean 79 %.

0 %300 %+

Share of parcels by range

  • below 50 %61 %
  • 50 % to below 100 %16 %
  • 100 % to below 150 %10 %
  • 150 % and above13 %

Floor-area ratio (GFZ)

Of the 880 parcels with a value, half lie between 0.04 and 0.33. The median is 0.08 and the mean 0.17.

0.003.00+

Share of parcels by range

  • below 0.5087 %
  • 0.50 to below 1.0011 %
  • 1.00 to below 1.501 %
  • 1.50 and above< 1 %

Building height

Of the 377 parcels with a value, half lie between 8.3 m and 11.9 m. The median is 10.3 m and the mean 10.2 m.

0 m60 m+

Share of parcels by range

  • below 8 m21 %
  • 8 m to below 12 m56 %
  • 12 m to below 20 m23 %
  • 20 m and above0 %

Number of floors

Of the 234 parcels with a value, half lie between 1.8 and 2.9. The median is 2.3 and the mean 2.4.

016+

Share of parcels by range

  • below 27 %
  • 2 to below 356 %
  • 3 to below 537 %
  • 5 and above0 %

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 years89485 %
Last 60 years277152 %
Last 40 years185148 %
Last 20 years99158 %
Last 15 years61168 %
Last 10 years35178 %
Last 5 years9157 %

Open the map at Muolen

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).