Trimbach: observed built density
Municipality in the canton of Solothurn · FSO no. 2500 · Parcel data as of July 2025
- Parcels
- 1’761
1 % of the canton
- Municipal zones
- 26
- Median utilization
- 86 %
Canton: 29 %
Switzerland: 10 %
- Median GFZ
- 0.44
Canton: 0.10
Switzerland: 0.09
- Median height
- 10.1 m
Canton: 9.2 m
Switzerland: 9.5 m
- Median floors
- 2.3
Canton: 2.2
Switzerland: 2.3
About Trimbach
Trimbach is a municipality in the canton of Solothurn. The parcel data lists 1’761 parcels in 26 municipal zone types. The zone types with the most parcels are 2-geschossige Wohnzone c (482), 2-geschossige Wohnzone b (355) and 3-geschossige Wohnzone (133).
The median parcel is built to a volume utilization of 86 %; half of the parcels lie between 10 % and 128 %. The canton median is 29 %, so Trimbach sits above it.
The median building height is 10.1 m at 2.3 floors, and the median floor-area ratio (GFZ) is 0.44. Parcels built in the last 20 years reach a mean volume utilization of 101 % (175 parcels), higher than the 95 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| 2-geschossige Wohnzone c | 482 | 119 % |
| 2-geschossige Wohnzone b | 355 | 78 % |
| 3-geschossige Wohnzone | 133 | 106 % |
| Verkehrszone Strasse | 106 | 0 % |
| Landwirtschaftszone | 103 | 0 % |
| Zone für Volumenerhaltung | 94 | 102 % |
| 3-geschossige Gewerbezone mit Wohnanteil | 78 | 82 % |
| Wald | 63 | 0 % |
| 4-geschossige Kernzone | 51 | 60 % |
| 4-geschossige Wohnzone | 45 | 157 % |
| Zone für öffentliche Bauten und Anlagen | 44 | 1 % |
| Gewerbezone | 38 | 133 % |
| Other zones (14) | 169 | - |
Volume utilization (ratioV)
Of the 1’731 parcels with a value, half lie between 10 % and 128 %. The median is 86 % and the mean 92 %.
Share of parcels by range
- below 50 %33 %
- 50 % to below 100 %27 %
- 100 % to below 150 %24 %
- 150 % and above17 %
Floor-area ratio (GFZ)
Of the 1’731 parcels with a value, half lie between 0.09 and 0.74. The median is 0.44 and the mean 0.51.
Share of parcels by range
- below 0.5056 %
- 0.50 to below 1.0031 %
- 1.00 to below 1.5010 %
- 1.50 and above4 %
Building height
Of the 1’271 parcels with a value, half lie between 8.6 m and 11.9 m. The median is 10.1 m and the mean 10.5 m.
Share of parcels by range
- below 8 m15 %
- 8 m to below 12 m60 %
- 12 m to below 20 m23 %
- 20 m and above1 %
Number of floors
Of the 1’045 parcels with a value, half lie between 1.9 and 3.0. The median is 2.3 and the mean 2.5.
Share of parcels by range
- below 26 %
- 2 to below 352 %
- 3 to below 538 %
- 5 and above4 %
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 | 1’761 | 95 % |
| Last 60 years | 501 | 118 % |
| Last 40 years | 338 | 118 % |
| Last 20 years | 175 | 101 % |
| Last 15 years | 127 | 101 % |
| Last 10 years | 83 | 105 % |
| Last 5 years | 38 | 106 % |
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).