roomOpen the map

Weesen: observed built density

Municipality in the canton of St. Gallen · FSO no. 3316 · Parcel data as of July 2025

Parcels
753

< 1 % of the canton

Municipal zones
17
Median utilization
62 %

Canton: 58 %

Switzerland: 10 %

Median GFZ
0.33

Canton: 0.28

Switzerland: 0.09

Median height
10.0 m

Canton: 9.6 m

Switzerland: 9.5 m

Median floors
2.6

Canton: 2.4

Switzerland: 2.3

About Weesen

Weesen is a municipality in the canton of St. Gallen. The parcel data lists 753 parcels in 17 municipal zone types. The zone types with the most parcels are BauG Wohnzone W2 (237), BauG Kernzone K3 (125) and BauG Landwirtschaftszone (120).

The median parcel is built to a volume utilization of 62 %; half of the parcels lie between 8 % and 106 %. The canton median is 58 %, close to the level of Weesen.

The median building height is 10.0 m at 2.6 floors, and the median floor-area ratio (GFZ) is 0.33. Parcels built in the last 20 years reach a mean volume utilization of 110 % (75 parcels), higher than the 84 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
BauG Wohnzone W223775 %
BauG Kernzone K312586 %
BauG Landwirtschaftszone1209 %
BauG Wohnzone W36472 %
Hinweis.Wald500 %
BauG Wohnzone W2a37109 %
BauG Zone für öffentliche Bauten und Anlagen287 %
BauG Wohn-Gewerbezone WG32462 %
BauG Grünzone Freihaltung ausserhalb Baugebiet1971 %
BauG übriges Gemeindegebiet allg130 %
BauG Wohn-Gewerbezone WG21091 %
BauG Gewerbe-Industriezone GI A7100 %
Other zones (5)19-

Volume utilization (ratioV)

Of the 735 parcels with a value, half lie between 8 % and 106 %. The median is 62 % and the mean 77 %.

0 %300 %+

Share of parcels by range

  • below 50 %43 %
  • 50 % to below 100 %29 %
  • 100 % to below 150 %15 %
  • 150 % and above13 %

Floor-area ratio (GFZ)

Of the 735 parcels with a value, half lie between 0.06 and 0.64. The median is 0.33 and the mean 0.47.

0.003.00+

Share of parcels by range

  • below 0.5065 %
  • 0.50 to below 1.0023 %
  • 1.00 to below 1.505 %
  • 1.50 and above7 %

Building height

Of the 514 parcels with a value, half lie between 8.3 m and 11.9 m. The median is 10.0 m and the mean 10.2 m.

0 m60 m+

Share of parcels by range

  • below 8 m20 %
  • 8 m to below 12 m56 %
  • 12 m to below 20 m24 %
  • 20 m and above< 1 %

Number of floors

Of the 372 parcels with a value, half lie between 2.0 and 3.2. The median is 2.6 and the mean 2.6.

016+

Share of parcels by range

  • below 26 %
  • 2 to below 339 %
  • 3 to below 554 %
  • 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 years75384 %
Last 60 years287113 %
Last 40 years208107 %
Last 20 years75110 %
Last 15 years44107 %
Last 10 years26114 %
Last 5 years8109 %

Open the map at Weesen

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).