Horriwil: observed built density
Municipality in the canton of Solothurn · FSO no. 2523 · Parcel data as of July 2025
- Parcels
- 492
< 1 % of the canton
- Municipal zones
- 16
- Median utilization
- 78 %
Canton: 29 %
Switzerland: 10 %
- Median GFZ
- 0.26
Canton: 0.10
Switzerland: 0.09
- Median height
- 8.6 m
Canton: 9.2 m
Switzerland: 9.5 m
- Median floors
- 2.1
Canton: 2.2
Switzerland: 2.3
About Horriwil
Horriwil is a municipality in the canton of Solothurn. The parcel data lists 492 parcels in 16 municipal zone types. The zone types with the most parcels are Wohnzone 2-geschossig c (141), Landwirtschaftszone (75) and Kernzone (60).
The median parcel is built to a volume utilization of 78 %; half of the parcels lie between 7 % and 109 %. The canton median is 29 %, so Horriwil sits above it.
The median building height is 8.6 m at 2.1 floors, and the median floor-area ratio (GFZ) is 0.26. Parcels built in the last 20 years reach a mean volume utilization of 107 % (56 parcels), higher than the 79 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Wohnzone 2-geschossig c | 141 | 94 % |
| Landwirtschaftszone | 75 | 0 % |
| Kernzone | 60 | 129 % |
| Wohnzone 1-geschossig | 54 | 100 % |
| Verkehrsfläche Strasse | 45 | 0 % |
| Wohnzone 2-geschossig a | 36 | 102 % |
| Verkehrszone Strasse | 23 | 0 % |
| Wald | 21 | 0 % |
| Gewerbezone | 9 | 44 % |
| Wohnzone 2-geschossig b | 9 | 100 % |
| Weilerzone Wil | 6 | 74 % |
| Freihaltezone | 5 | 0 % |
| Other zones (4) | 8 | - |
Volume utilization (ratioV)
Of the 479 parcels with a value, half lie between 7 % and 109 %. The median is 78 % and the mean 73 %.
Share of parcels by range
- below 50 %41 %
- 50 % to below 100 %26 %
- 100 % to below 150 %23 %
- 150 % and above10 %
Floor-area ratio (GFZ)
Of the 479 parcels with a value, half lie between 0.06 and 0.39. The median is 0.26 and the mean 0.25.
Share of parcels by range
- below 0.5088 %
- 0.50 to below 1.0011 %
- 1.00 to below 1.501 %
- 1.50 and above0 %
Building height
Of the 294 parcels with a value, half lie between 7.3 m and 9.9 m. The median is 8.6 m and the mean 8.7 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 242 parcels with a value, half lie between 1.7 and 2.5. The median is 2.1 and the mean 2.1.
Share of parcels by range
- below 214 %
- 2 to below 364 %
- 3 to below 522 %
- 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 | 492 | 79 % |
| Last 60 years | 239 | 119 % |
| Last 40 years | 146 | 120 % |
| Last 20 years | 56 | 107 % |
| Last 15 years | 40 | 110 % |
| Last 10 years | 18 | 132 % |
| Last 5 years | 9 | 162 % |
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).