Boningen: observed built density
Municipality in the canton of Solothurn · FSO no. 2571 · Parcel data as of July 2025
- Parcels
- 464
< 1 % of the canton
- Municipal zones
- 13
- Median utilization
- 9 %
Canton: 29 %
Switzerland: 10 %
- Median GFZ
- 0.09
Canton: 0.10
Switzerland: 0.09
- Median height
- 9.1 m
Canton: 9.2 m
Switzerland: 9.5 m
- Median floors
- 2.1
Canton: 2.2
Switzerland: 2.3
About Boningen
Boningen is a municipality in the canton of Solothurn. The parcel data lists 464 parcels in 13 municipal zone types. The zone types with the most parcels are 2-geschossige Wohnzone (135), Landwirtschaftszone (134) and Wald (71).
The median parcel is built to a volume utilization of 9 %; half of the parcels lie between 5 % and 93 %. The canton median is 29 %, so Boningen sits below it.
The median building height is 9.1 m at 2.1 floors, and the median floor-area ratio (GFZ) is 0.09. Parcels built in the last 20 years reach a mean volume utilization of 107 % (53 parcels), higher than the 81 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| 2-geschossige Wohnzone | 135 | 93 % |
| Landwirtschaftszone | 134 | 0 % |
| Wald | 71 | 0 % |
| 2-geschossige Wohnzone, Verdichtung | 40 | 67 % |
| Kernzone, Erhaltung 2-geschossig | 25 | 99 % |
| Verkehrszone Strasse | 22 | 0 % |
| Verkehrsfläche Strasse | 11 | 0 % |
| Zone für öffentliche Bauten und Anlagen | 9 | 45 % |
| kommunale Uferschutzzone | 6 | 0 % |
| 3-geschossige Wohnzone | 3 | 62 % |
| Gewerbezone ohne Wohnen | 3 | 64 % |
| Gewässer | 3 | 0 % |
| Other zones (1) | 2 | - |
Volume utilization (ratioV)
Of the 449 parcels with a value, half lie between 5 % and 93 %. The median is 9 % and the mean 74 %.
Share of parcels by range
- below 50 %57 %
- 50 % to below 100 %21 %
- 100 % to below 150 %12 %
- 150 % and above10 %
Floor-area ratio (GFZ)
Of the 449 parcels with a value, half lie between 0.05 and 0.37. The median is 0.09 and the mean 0.19.
Share of parcels by range
- below 0.5088 %
- 0.50 to below 1.0012 %
- 1.00 to below 1.50< 1 %
- 1.50 and above0 %
Building height
Of the 202 parcels with a value, half lie between 7.9 m and 10.5 m. The median is 9.1 m and the mean 9.4 m.
Share of parcels by range
- below 8 m26 %
- 8 m to below 12 m67 %
- 12 m to below 20 m6 %
- 20 m and above< 1 %
Number of floors
Of the 154 parcels with a value, half lie between 1.8 and 2.5. The median is 2.1 and the mean 2.2.
Share of parcels by range
- below 26 %
- 2 to below 370 %
- 3 to below 523 %
- 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 in | Parcels | Mean utilization |
|---|---|---|
| All years | 464 | 81 % |
| Last 60 years | 157 | 126 % |
| Last 40 years | 123 | 127 % |
| Last 20 years | 53 | 107 % |
| Last 15 years | 36 | 104 % |
| Last 10 years | 17 | 100 % |
| Last 5 years | 2 | 97 % |
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).