Allschwil: observed built density
Municipality in the canton of Basel-Landschaft · FSO no. 2762 · Parcel data as of July 2025
- Parcels
- 5’096
4 % of the canton
- Municipal zones
- 48
- Median utilization
- 60 %
Canton: 41 %
Switzerland: 10 %
- Median GFZ
- 0.46
Canton: 0.22
Switzerland: 0.09
- Median height
- 10.7 m
Canton: 9.6 m
Switzerland: 9.5 m
- Median floors
- 2.5
Canton: 2.1
Switzerland: 2.3
About Allschwil
Allschwil is a municipality in the canton of Basel-Landschaft. The parcel data lists 5’096 parcels in 48 municipal zone types. The zone types with the most parcels are W3 Wohnzone 3-geschossig (1’179), Landwirtschaftszone (876) and W2 Wohnzone 2-geschossig (869).
The median parcel is built to a volume utilization of 60 %; half of the parcels lie between 6 % and 101 %. The canton median is 41 %, so Allschwil sits above it.
The median building height is 10.7 m at 2.5 floors, and the median floor-area ratio (GFZ) is 0.46. Parcels built in the last 20 years reach a mean volume utilization of 95 % (407 parcels), higher than the 61 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| W3 Wohnzone 3-geschossig | 1’179 | 84 % |
| Landwirtschaftszone | 876 | 0 % |
| W2 Wohnzone 2-geschossig | 869 | 89 % |
| W2a Wohnzone 2-geschossig | 422 | 86 % |
| Strasse innerhalb ZPS | 264 | 0 % |
| K | 259 | 110 % |
| WG4 Wohn-/Geschäftszone 4-geschossig | 173 | 79 % |
| W3 | 167 | 70 % |
| Wald | 140 | 0 % |
| Strasse ausserhalb ZPS | 121 | 0 % |
| W2 | 73 | 75 % |
| G20a Gewerbezone Gebäudehöhe 20.0m (Binningerstrasse) | 61 | 150 % |
| Other zones (36) | 492 | - |
Volume utilization (ratioV)
Of the 5’024 parcels with a value, half lie between 6 % and 101 %. The median is 60 % and the mean 59 %.
Share of parcels by range
- below 50 %46 %
- 50 % to below 100 %29 %
- 100 % to below 150 %20 %
- 150 % and above6 %
Floor-area ratio (GFZ)
Of the 5’024 parcels with a value, half lie between 0.06 and 0.88. The median is 0.46 and the mean 0.53.
Share of parcels by range
- below 0.5052 %
- 0.50 to below 1.0029 %
- 1.00 to below 1.5013 %
- 1.50 and above6 %
Building height
Of the 3’061 parcels with a value, half lie between 9.0 m and 12.3 m. The median is 10.7 m and the mean 10.9 m.
Share of parcels by range
- below 8 m14 %
- 8 m to below 12 m58 %
- 12 m to below 20 m27 %
- 20 m and above1 %
Number of floors
Of the 2’933 parcels with a value, half lie between 1.7 and 3.2. The median is 2.5 and the mean 2.5.
Share of parcels by range
- below 218 %
- 2 to below 333 %
- 3 to below 546 %
- 5 and above3 %
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 | 5’096 | 61 % |
| Last 60 years | 1’684 | 94 % |
| Last 40 years | 925 | 97 % |
| Last 20 years | 407 | 95 % |
| Last 15 years | 304 | 98 % |
| Last 10 years | 175 | 100 % |
| Last 5 years | 83 | 105 % |
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).