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Starrkirch-Wil: observed built density

Municipality in the canton of Solothurn · FSO no. 2584 · Parcel data as of July 2025

Parcels
613

1 % of the canton

Municipal zones
17
Median utilization
85 %

Canton: 29 %

Switzerland: 10 %

Median GFZ
0.39

Canton: 0.10

Switzerland: 0.09

Median height
9.1 m

Canton: 9.2 m

Switzerland: 9.5 m

Median floors
2.2

Canton: 2.2

Switzerland: 2.3

About Starrkirch-Wil

Starrkirch-Wil is a municipality in the canton of Solothurn. The parcel data lists 613 parcels in 17 municipal zone types. The zone types with the most parcels are Wohnzone, 2 geschossig (263), Wohnzone, 1-2 geschossig (70) and Wohnzone, 1-2 geschossig+ (52).

The median parcel is built to a volume utilization of 85 %; half of the parcels lie between 9 % and 113 %. The canton median is 29 %, so Starrkirch-Wil sits above it.

The median building height is 9.1 m at 2.2 floors, and the median floor-area ratio (GFZ) is 0.39. Parcels built in the last 20 years reach a mean volume utilization of 101 % (72 parcels), higher than the 79 % across all building years.

Parcels by municipal zone

Municipal zone types with their parcel count and median volume utilization
ZoneParcelsMedian utilization
Wohnzone, 2 geschossig263102 %
Wohnzone, 1-2 geschossig7084 %
Wohnzone, 1-2 geschossig+5283 %
Landwirtschaftszone510 %
Verkehrszone Strasse490 %
Wohnzone, 3 geschossig ohne Attika38101 %
Wald220 %
Wohnzone, 3 geschossig2186 %
Kernzone20113 %
Gewerbezone mit Wohnnutzung7102 %
Zone für öffentliche Bauten und Anlagen631 %
Verkehrsfläche Strasse50 %
Other zones (5)9-

Volume utilization (ratioV)

Of the 597 parcels with a value, half lie between 9 % and 113 %. The median is 85 % and the mean 77 %.

0 %300 %+

Share of parcels by range

  • below 50 %31 %
  • 50 % to below 100 %32 %
  • 100 % to below 150 %28 %
  • 150 % and above8 %

Floor-area ratio (GFZ)

Of the 597 parcels with a value, half lie between 0.09 and 0.56. The median is 0.39 and the mean 0.38.

0.003.00+

Share of parcels by range

  • below 0.5068 %
  • 0.50 to below 1.0030 %
  • 1.00 to below 1.503 %
  • 1.50 and above0 %

Building height

Of the 434 parcels with a value, half lie between 7.6 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 m29 %
  • 8 m to below 12 m62 %
  • 12 m to below 20 m8 %
  • 20 m and above0 %

Number of floors

Of the 387 parcels with a value, half lie between 1.8 and 2.7. The median is 2.2 and the mean 2.2.

016+

Share of parcels by range

  • below 28 %
  • 2 to below 362 %
  • 3 to below 530 %
  • 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 years61379 %
Last 60 years295104 %
Last 40 years209112 %
Last 20 years72101 %
Last 15 years4796 %
Last 10 years24102 %
Last 5 years14107 %

Open the map at Starrkirch-Wil

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).