Thürnen: observed built density
Municipality in the canton of Basel-Landschaft · FSO no. 2864 · Parcel data as of July 2025
- Parcels
- 743
1 % of the canton
- Municipal zones
- 24
- Median utilization
- 10 %
Canton: 41 %
Switzerland: 10 %
- Median GFZ
- 0.09
Canton: 0.22
Switzerland: 0.09
- Median height
- 10.3 m
Canton: 9.6 m
Switzerland: 9.5 m
- Median floors
- 2.2
Canton: 2.1
Switzerland: 2.3
About Thürnen
Thürnen is a municipality in the canton of Basel-Landschaft. The parcel data lists 743 parcels in 24 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (198), Wohnzone, 1-geschossig, W1 (152) and Wohnzone, 2-geschossig, W2 (100).
The median parcel is built to a volume utilization of 10 %; half of the parcels lie between 5 % and 90 %. The canton median is 41 %, so Thürnen sits below it.
The median building height is 10.3 m at 2.2 floors, and the median floor-area ratio (GFZ) is 0.09. Parcels built in the last 20 years reach a mean volume utilization of 105 % (66 parcels), higher than the 55 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszone | 198 | 0 % |
| Wohnzone, 1-geschossig, W1 | 152 | 96 % |
| Wohnzone, 2-geschossig, W2 | 100 | 71 % |
| Kernzone, 2-geschossig, K2 | 46 | 84 % |
| Wohnzone, 3-geschossig, W3 | 46 | 72 % |
| Wohn-/Geschäftszone, 2-geschossig, WG2 | 41 | 78 % |
| Strasse innerhalb ZPS | 39 | 0 % |
| Wald | 28 | 0 % |
| Strasse ausserhalb ZPS | 20 | 0 % |
| Freihaltezone Ortskern | 11 | 0 % |
| Naturschutzzone | 10 | 0 % |
| Uferschutzzone | 10 | 0 % |
| Other zones (12) | 42 | - |
Volume utilization (ratioV)
Of the 725 parcels with a value, half lie between 5 % and 90 %. The median is 10 % and the mean 50 %.
Share of parcels by range
- below 50 %54 %
- 50 % to below 100 %26 %
- 100 % to below 150 %15 %
- 150 % and above5 %
Floor-area ratio (GFZ)
Of the 725 parcels with a value, half lie between 0.05 and 0.59. The median is 0.09 and the mean 0.31.
Share of parcels by range
- below 0.5068 %
- 0.50 to below 1.0026 %
- 1.00 to below 1.505 %
- 1.50 and above1 %
Building height
Of the 344 parcels with a value, half lie between 8.6 m and 11.6 m. The median is 10.3 m and the mean 10.2 m.
Share of parcels by range
- below 8 m16 %
- 8 m to below 12 m66 %
- 12 m to below 20 m18 %
- 20 m and above0 %
Number of floors
Of the 332 parcels with a value, half lie between 1.6 and 2.9. The median is 2.2 and the mean 2.2.
Share of parcels by range
- below 221 %
- 2 to below 343 %
- 3 to below 536 %
- 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 | 743 | 55 % |
| Last 60 years | 295 | 99 % |
| Last 40 years | 192 | 108 % |
| Last 20 years | 66 | 105 % |
| Last 15 years | 35 | 101 % |
| Last 10 years | 18 | 100 % |
| Last 5 years | 10 | 109 % |
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).