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Hochwald: observed built density

Municipality in the canton of Solothurn · FSO no. 2475 · Parcel data as of July 2025

Parcels
4’017

3 % of the canton

Municipal zones
18
Median utilization
6 %

Canton: 29 %

Switzerland: 10 %

Median GFZ
0.06

Canton: 0.10

Switzerland: 0.09

Median height
8.6 m

Canton: 9.2 m

Switzerland: 9.5 m

Median floors
2.0

Canton: 2.2

Switzerland: 2.3

About Hochwald

Hochwald is a municipality in the canton of Solothurn. The parcel data lists 4’017 parcels in 18 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (2’060), Wald (1’139) and Wohnzone ein- bis zweigeschossig (335).

The median parcel is built to a volume utilization of 6 %; half of the parcels lie between 3 % and 9 %. The canton median is 29 %, so Hochwald sits below it.

The median building height is 8.6 m at 2.0 floors, and the median floor-area ratio (GFZ) is 0.06. Parcels built in the last 20 years reach a mean volume utilization of 101 % (117 parcels), higher than the 14 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
Landwirtschaftszone2’0600 %
Wald1’1390 %
Wohnzone ein- bis zweigeschossig33590 %
Kernzone104108 %
Wohnzone eingeschossig9479 %
Reservezone Wohnzone, Mischzone, Kernzone und Zentrumszone620 %
Verkehrsfläche Strasse620 %
Verkehrszone Strasse620 %
Hofstattzone37100 %
Wohnzone zweigeschossig2688 %
Sondernutzungszone Gartenanlage90 %
Zone für öffentliche Bauten und Anlagen90 %
Other zones (6)18-

Volume utilization (ratioV)

Of the 3’986 parcels with a value, half lie between 3 % and 9 %. The median is 6 % and the mean 13 %.

0 %300 %+

Share of parcels by range

  • below 50 %88 %
  • 50 % to below 100 %5 %
  • 100 % to below 150 %5 %
  • 150 % and above2 %

Floor-area ratio (GFZ)

Of the 3’986 parcels with a value, half lie between 0.03 and 0.09. The median is 0.06 and the mean 0.06.

0.003.00+

Share of parcels by range

  • below 0.5096 %
  • 0.50 to below 1.003 %
  • 1.00 to below 1.501 %
  • 1.50 and above< 1 %

Building height

Of the 532 parcels with a value, half lie between 7.1 m and 9.9 m. The median is 8.6 m and the mean 8.7 m.

0 m60 m+

Share of parcels by range

  • below 8 m37 %
  • 8 m to below 12 m56 %
  • 12 m to below 20 m7 %
  • 20 m and above0 %

Number of floors

Of the 425 parcels with a value, half lie between 1.7 and 2.4. The median is 2.0 and the mean 2.1.

016+

Share of parcels by range

  • below 214 %
  • 2 to below 367 %
  • 3 to below 520 %
  • 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 years4’01714 %
Last 60 years422100 %
Last 40 years287105 %
Last 20 years117101 %
Last 15 years6999 %
Last 10 years4392 %
Last 5 years1073 %

Open the map at Hochwald

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).