Wahlen: observed built density
Municipality in the canton of Basel-Landschaft · FSO no. 2792 · Parcel data as of July 2025
- Parcels
- 1’761
1 % of the canton
- Municipal zones
- 12
- Median utilization
- 7 %
Canton: 41 %
Switzerland: 10 %
- Median GFZ
- 0.07
Canton: 0.22
Switzerland: 0.09
- Median height
- 8.8 m
Canton: 9.6 m
Switzerland: 9.5 m
- Median floors
- 1.9
Canton: 2.1
Switzerland: 2.3
About Wahlen
Wahlen is a municipality in the canton of Basel-Landschaft. The parcel data lists 1’761 parcels in 12 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (969), 2-geschossige Wohnzone W2 (393) and Kernzone (103).
The median parcel is built to a volume utilization of 7 %; half of the parcels lie between 3 % and 48 %. The canton median is 41 %, so Wahlen sits below it.
The median building height is 8.8 m at 1.9 floors, and the median floor-area ratio (GFZ) is 0.07. Parcels built in the last 20 years reach a mean volume utilization of 107 % (110 parcels), higher than the 29 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszone | 969 | 0 % |
| 2-geschossige Wohnzone W2 | 393 | 79 % |
| Kernzone | 103 | 72 % |
| Waldareal | 90 | 0 % |
| 2-geschossige Wohn- / Geschäftszone WG2 | 63 | 72 % |
| Spezialzone Abbau und Deponie Müsch | 61 | 0 % |
| Strasse innerhalb ZPS | 33 | 0 % |
| Strasse ausserhalb ZPS | 23 | 0 % |
| Wohn- und Geschäftszonen | 13 | 81 % |
| Zone für öffentliche Werke und Anlagen OeWA | 10 | 29 % |
| Wahlenbach, offen | 2 | 0 % |
| Gewässer | 1 | 0 % |
Volume utilization (ratioV)
Of the 1’748 parcels with a value, half lie between 3 % and 48 %. The median is 7 % and the mean 27 %.
Share of parcels by range
- below 50 %75 %
- 50 % to below 100 %14 %
- 100 % to below 150 %8 %
- 150 % and above3 %
Floor-area ratio (GFZ)
Of the 1’748 parcels with a value, half lie between 0.03 and 0.22. The median is 0.07 and the mean 0.15.
Share of parcels by range
- below 0.5088 %
- 0.50 to below 1.0010 %
- 1.00 to below 1.502 %
- 1.50 and above1 %
Building height
Of the 486 parcels with a value, half lie between 7.4 m and 10.1 m. The median is 8.8 m and the mean 8.8 m.
Share of parcels by range
- below 8 m33 %
- 8 m to below 12 m60 %
- 12 m to below 20 m7 %
- 20 m and above0 %
Number of floors
Of the 454 parcels with a value, half lie between 1.3 and 2.4. The median is 1.9 and the mean 1.9.
Share of parcels by range
- below 231 %
- 2 to below 349 %
- 3 to below 520 %
- 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 | 1’761 | 29 % |
| Last 60 years | 392 | 98 % |
| Last 40 years | 286 | 103 % |
| Last 20 years | 110 | 107 % |
| Last 15 years | 90 | 108 % |
| Last 10 years | 55 | 113 % |
| Last 5 years | 19 | 113 % |
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).