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Feldbrunnen-St. Niklaus: observed built density

Municipality in the canton of Solothurn · FSO no. 2544 · Parcel data as of July 2025

Parcels
363

< 1 % of the canton

Municipal zones
14
Median utilization
56 %

Canton: 29 %

Switzerland: 10 %

Median GFZ
0.31

Canton: 0.10

Switzerland: 0.09

Median height
9.1 m

Canton: 9.2 m

Switzerland: 9.5 m

Median floors
2.4

Canton: 2.2

Switzerland: 2.3

About Feldbrunnen-St. Niklaus

Feldbrunnen-St. Niklaus is a municipality in the canton of Solothurn. The parcel data lists 363 parcels in 14 municipal zone types. The zone types with the most parcels are 2-geschossige Wohnzone, ES II (174), Landwirtschaftszone (62) and 3-geschossige Wohnzone, ES II (48).

The median parcel is built to a volume utilization of 56 %; half of the parcels lie between 7 % and 98 %. The canton median is 29 %, so Feldbrunnen-St. Niklaus sits above it.

The median building height is 9.1 m at 2.4 floors, and the median floor-area ratio (GFZ) is 0.31. Parcels built in the last 20 years reach a mean volume utilization of 101 % (55 parcels), higher than the 68 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
2-geschossige Wohnzone, ES II17471 %
Landwirtschaftszone620 %
3-geschossige Wohnzone, ES II48108 %
Verkehrszone Strasse360 %
Kernzone, ES II1157 %
Verkehrsfläche Strasse70 %
3-geschossige Wohn- und Arbeitszone, ES III595 %
Gewässer50 %
Wald40 %
Zone für öffentliche Bauten und Anlagen, ES III4177 %
Schutzzone ausserhalb der Bauzone, ES III30 %
Schutzzone Schloss Waldegg, Villa Serdang, Villa Lueg, ES II262 %
Other zones (2)2-

Volume utilization (ratioV)

Of the 352 parcels with a value, half lie between 7 % and 98 %. The median is 56 % and the mean 63 %.

0 %300 %+

Share of parcels by range

  • below 50 %45 %
  • 50 % to below 100 %31 %
  • 100 % to below 150 %16 %
  • 150 % and above8 %

Floor-area ratio (GFZ)

Of the 352 parcels with a value, half lie between 0.06 and 0.54. The median is 0.31 and the mean 0.32.

0.003.00+

Share of parcels by range

  • below 0.5072 %
  • 0.50 to below 1.0026 %
  • 1.00 to below 1.503 %
  • 1.50 and above0 %

Building height

Of the 215 parcels with a value, half lie between 7.8 m and 10.6 m. The median is 9.1 m and the mean 9.2 m.

0 m60 m+

Share of parcels by range

  • below 8 m28 %
  • 8 m to below 12 m60 %
  • 12 m to below 20 m12 %
  • 20 m and above0 %

Number of floors

Of the 188 parcels with a value, half lie between 1.8 and 3.0. The median is 2.4 and the mean 2.4.

016+

Share of parcels by range

  • below 210 %
  • 2 to below 345 %
  • 3 to below 545 %
  • 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 years36368 %
Last 60 years16795 %
Last 40 years122104 %
Last 20 years55101 %
Last 15 years39111 %
Last 10 years19103 %
Last 5 years10111 %

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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).