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Buchegg: observed built density

Municipality in the canton of Solothurn · FSO no. 2465 · Parcel data as of July 2025

Parcels
2’851

2 % of the canton

Municipal zones
24
Median utilization
7 %

Canton: 29 %

Switzerland: 10 %

Median GFZ
0.07

Canton: 0.10

Switzerland: 0.09

Median height
9.6 m

Canton: 9.2 m

Switzerland: 9.5 m

Median floors
2.1

Canton: 2.2

Switzerland: 2.3

About Buchegg

Buchegg is a municipality in the canton of Solothurn. The parcel data lists 2’851 parcels in 24 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (883), Verkehrsfläche Strasse (565) and Wohnzone zweigeschossig (434).

The median parcel is built to a volume utilization of 7 %; half of the parcels lie between 4 % and 69 %. The canton median is 29 %, so Buchegg sits below it.

The median building height is 9.6 m at 2.1 floors, and the median floor-area ratio (GFZ) is 0.07. Parcels built in the last 20 years reach a mean volume utilization of 110 % (153 parcels), higher than the 40 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
Landwirtschaftszone8830 %
Verkehrsfläche Strasse5650 %
Wohnzone zweigeschossig43497 %
Wald3250 %
Kernzone31797 %
Verkehrszone Strasse1440 %
Wohnzone zweigeschossig für freistehende EFH3384 %
Erhaltungszone32108 %
Gewässer220 %
Reservezone Wohnzone, Mischzone, Kernzone und Zentrumszone170 %
Zone für öffentliche Anlagen140 %
Gewerbezone mit Wohnen11209 %
Other zones (12)54-

Volume utilization (ratioV)

Of the 2’817 parcels with a value, half lie between 4 % and 69 %. The median is 7 % and the mean 37 %.

0 %300 %+

Share of parcels by range

  • below 50 %71 %
  • 50 % to below 100 %12 %
  • 100 % to below 150 %10 %
  • 150 % and above6 %

Floor-area ratio (GFZ)

Of the 2’817 parcels with a value, half lie between 0.04 and 0.24. The median is 0.07 and the mean 0.13.

0.003.00+

Share of parcels by range

  • below 0.5092 %
  • 0.50 to below 1.008 %
  • 1.00 to below 1.501 %
  • 1.50 and above0 %

Building height

Of the 933 parcels with a value, half lie between 8.1 m and 11.6 m. The median is 9.6 m and the mean 9.8 m.

0 m60 m+

Share of parcels by range

  • below 8 m24 %
  • 8 m to below 12 m55 %
  • 12 m to below 20 m21 %
  • 20 m and above0 %

Number of floors

Of the 648 parcels with a value, half lie between 1.7 and 2.4. The median is 2.1 and the mean 2.1.

016+

Share of parcels by range

  • below 211 %
  • 2 to below 371 %
  • 3 to below 519 %
  • 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 years2’85140 %
Last 60 years581105 %
Last 40 years436109 %
Last 20 years153110 %
Last 15 years100108 %
Last 10 years62112 %
Last 5 years29116 %

Open the map at Buchegg

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).