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Mels: observed built density

Municipality in the canton of St. Gallen · FSO no. 3293 · Parcel data as of July 2025

Parcels
4’672

2 % of the canton

Municipal zones
23
Median utilization
45 %

Canton: 58 %

Switzerland: 10 %

Median GFZ
0.10

Canton: 0.28

Switzerland: 0.09

Median height
9.0 m

Canton: 9.6 m

Switzerland: 9.5 m

Median floors
2.2

Canton: 2.4

Switzerland: 2.3

About Mels

Mels is a municipality in the canton of St. Gallen. The parcel data lists 4’672 parcels in 23 municipal zone types. The zone types with the most parcels are BauG Wohnzone W2 (1’504), BauG Landwirtschaftszone (1’449) and Hinweis.Wald (500).

The median parcel is built to a volume utilization of 45 %; half of the parcels lie between 6 % and 106 %. The canton median is 58 %, so Mels sits below it.

The median building height is 9.0 m at 2.2 floors, and the median floor-area ratio (GFZ) is 0.10. Parcels built in the last 20 years reach a mean volume utilization of 142 % (512 parcels), higher than the 93 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
BauG Wohnzone W21’50494 %
BauG Landwirtschaftszone1’4496 %
Hinweis.Wald5000 %
BauG Kernzone18366 %
Hinweis.Verkehrsflaeche aB1800 %
Hinweis.Verkehrsflaeche iB1500 %
BauG übriges Gemeindegebiet allg1477 %
BauG Wohn-Gewerbezone WG311589 %
BauG Wohnzone W37481 %
BauG Wohn-Gewerbezone WG257100 %
BauG Dorfkernzone DK25394 %
BauG Grünzone Naturschutz450 %
Other zones (11)215-

Volume utilization (ratioV)

Of the 4’637 parcels with a value, half lie between 6 % and 106 %. The median is 45 % and the mean 80 %.

0 %300 %+

Share of parcels by range

  • below 50 %51 %
  • 50 % to below 100 %21 %
  • 100 % to below 150 %15 %
  • 150 % and above12 %

Floor-area ratio (GFZ)

Of the 4’637 parcels with a value, half lie between 0.05 and 0.51. The median is 0.10 and the mean 0.31.

0.003.00+

Share of parcels by range

  • below 0.5074 %
  • 0.50 to below 1.0020 %
  • 1.00 to below 1.504 %
  • 1.50 and above2 %

Building height

Of the 2’867 parcels with a value, half lie between 7.5 m and 10.5 m. The median is 9.0 m and the mean 9.2 m.

0 m60 m+

Share of parcels by range

  • below 8 m31 %
  • 8 m to below 12 m58 %
  • 12 m to below 20 m10 %
  • 20 m and above< 1 %

Number of floors

Of the 1’901 parcels with a value, half lie between 1.7 and 2.8. The median is 2.2 and the mean 2.3.

016+

Share of parcels by range

  • below 212 %
  • 2 to below 354 %
  • 3 to below 532 %
  • 5 and above2 %

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 years4’67293 %
Last 60 years1’755136 %
Last 40 years1’211128 %
Last 20 years512142 %
Last 15 years339163 %
Last 10 years223179 %
Last 5 years115206 %

Open the map at Mels

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).