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Lax: observed built density

Municipality in the canton of Valais · FSO no. 6061 · Parcel data as of July 2025

The parcel data covers only part of the land in the canton of Valais, so figures here may be incomplete.

Parcels
1’014

< 1 % of the canton

Municipal zones
19
Median utilization
7 %

Canton: 7 %

Switzerland: 10 %

Median GFZ
0.07

Canton: 0.07

Switzerland: 0.09

Median height
8.7 m

Canton: 8.4 m

Switzerland: 9.5 m

Median floors
2.7

Canton: 2.3

Switzerland: 2.3

About Lax

Lax is a municipality in the canton of Valais. The parcel data lists 1’014 parcels in 19 municipal zone types. The zone types with the most parcels are Landwirtschaftszonen / Weidwald (247), Landwirtschaftszone (213) and Dorfzone (132).

The median parcel is built to a volume utilization of 7 %; half of the parcels lie between 4 % and 48 %. The canton median is 7 %, close to the level of Lax.

The median building height is 8.7 m at 2.7 floors, and the median floor-area ratio (GFZ) is 0.07. Parcels built in the last 20 years reach a mean volume utilization of 231 % (60 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
Landwirtschaftszonen / Weidwald2470 %
Landwirtschaftszone2130 %
Dorfzone13247 %
Ferienhauszone1140 %
Verkehrsanlagen590 %
Wohnzone 3590 %
Dorferweiterungszone5255 %
Zone für Touristische Bauten280 %
Ferienhauszone Zillwald2777 %
Wald250 %
Industrie- und Gewerbezone190 %
Wohn- und Geschäftszone WG41573 %
Other zones (7)24-

Volume utilization (ratioV)

Of the 997 parcels with a value, half lie between 4 % and 48 %. The median is 7 % and the mean 48 %.

0 %300 %+

Share of parcels by range

  • below 50 %75 %
  • 50 % to below 100 %9 %
  • 100 % to below 150 %8 %
  • 150 % and above7 %

Floor-area ratio (GFZ)

Of the 997 parcels with a value, half lie between 0.03 and 0.26. The median is 0.07 and the mean 0.25.

0.003.00+

Share of parcels by range

  • below 0.5081 %
  • 0.50 to below 1.0011 %
  • 1.00 to below 1.504 %
  • 1.50 and above4 %

Building height

Of the 281 parcels with a value, half lie between 7.1 m and 10.5 m. The median is 8.7 m and the mean 9.0 m.

0 m60 m+

Share of parcels by range

  • below 8 m38 %
  • 8 m to below 12 m52 %
  • 12 m to below 20 m10 %
  • 20 m and above0 %

Number of floors

Of the 177 parcels with a value, half lie between 2.0 and 3.2. The median is 2.7 and the mean 2.6.

016+

Share of parcels by range

  • below 25 %
  • 2 to below 337 %
  • 3 to below 558 %
  • 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 years1’01485 %
Last 60 years264277 %
Last 40 years100188 %
Last 20 years60231 %
Last 15 years49256 %
Last 10 years883 %
Last 5 years271 %

Open the map at Lax

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).