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Walchwil: observed built density

Municipality in the canton of Zug · FSO no. 1710 · Parcel data as of July 2025

Parcels
1’396

7 % of the canton

Municipal zones
20
Median utilization
47 %

Canton: 59 %

Switzerland: 10 %

Median GFZ
0.29

Canton: 0.45

Switzerland: 0.09

Median height
10.5 m

Canton: 11.1 m

Switzerland: 9.5 m

Median floors
2.8

Canton: 2.9

Switzerland: 2.3

About Walchwil

Walchwil is a municipality in the canton of Zug. The parcel data lists 1’396 parcels in 20 municipal zone types. The zone types with the most parcels are Wohnzone 1 (408), Landwirtschaftszone (281) and Wohnzone 2 (273).

The median parcel is built to a volume utilization of 47 %; half of the parcels lie between 6 % and 91 %. The canton median is 59 %, so Walchwil sits below it.

The median building height is 10.5 m at 2.8 floors, and the median floor-area ratio (GFZ) is 0.29. Parcels built in the last 20 years reach a mean volume utilization of 144 % (153 parcels), lower than the 151 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
Wohnzone 140861 %
Landwirtschaftszone2810 %
Wohnzone 227363 %
Bauzone mit speziellen Vorschriften Seeufer7045 %
Wohn- und Arbeitszone 26632 %
Verkehrsfläche570 %
Wald560 %
Kernzone5268 %
Wohn- und Arbeitszone 33890 %
Zone des oeffentlichen Interesses für Bauten und Anlagen28141 %
Wohnzone 32690 %
Naturschutzzone kantonal1917 %
Other zones (8)22-

Volume utilization (ratioV)

Of the 1’375 parcels with a value, half lie between 6 % and 91 %. The median is 47 % and the mean 122 %.

0 %300 %+

Share of parcels by range

  • below 50 %52 %
  • 50 % to below 100 %27 %
  • 100 % to below 150 %13 %
  • 150 % and above8 %

Floor-area ratio (GFZ)

Of the 1’374 parcels with a value, half lie between 0.05 and 0.71. The median is 0.29 and the mean 0.42.

0.003.00+

Share of parcels by range

  • below 0.5062 %
  • 0.50 to below 1.0025 %
  • 1.00 to below 1.509 %
  • 1.50 and above4 %

Building height

Of the 836 parcels with a value, half lie between 8.6 m and 12.8 m. The median is 10.5 m and the mean 10.7 m.

0 m60 m+

Share of parcels by range

  • below 8 m17 %
  • 8 m to below 12 m50 %
  • 12 m to below 20 m32 %
  • 20 m and above< 1 %

Number of floors

Of the 670 parcels with a value, half lie between 2.1 and 3.4. The median is 2.8 and the mean 2.8.

016+

Share of parcels by range

  • below 24 %
  • 2 to below 333 %
  • 3 to below 558 %
  • 5 and above4 %

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 years1’396151 %
Last 60 years687233 %
Last 40 years391278 %
Last 20 years153144 %
Last 15 years113118 %
Last 10 years72129 %
Last 5 years3188 %

Open the map at Walchwil

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).