Oberwil (BL): observed built density
Municipality in the canton of Basel-Landschaft · FSO no. 2771 · Parcel data as of July 2025
- Parcels
- 3’695
3 % of the canton
- Municipal zones
- 36
- Median utilization
- 54 %
Canton: 41 %
Switzerland: 10 %
- Median GFZ
- 0.43
Canton: 0.22
Switzerland: 0.09
- Median height
- 9.5 m
Canton: 9.6 m
Switzerland: 9.5 m
- Median floors
- 2.2
Canton: 2.1
Switzerland: 2.3
About Oberwil (BL)
Oberwil (BL) is a municipality in the canton of Basel-Landschaft. The parcel data lists 3’695 parcels in 36 municipal zone types. The zone types with the most parcels are Zweigeschossige Wohnzone W2b (2’012), Landwirtschaftszone (335) and Strasse innerhalb ZPS (193).
The median parcel is built to a volume utilization of 54 %; half of the parcels lie between 7 % and 84 %. The canton median is 41 %, so Oberwil (BL) sits above it.
The median building height is 9.5 m at 2.2 floors, and the median floor-area ratio (GFZ) is 0.43. Parcels built in the last 20 years reach a mean volume utilization of 93 % (361 parcels), higher than the 53 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Zweigeschossige Wohnzone W2b | 2’012 | 65 % |
| Landwirtschaftszone | 335 | 0 % |
| Strasse innerhalb ZPS | 193 | 0 % |
| Waldareal | 193 | 0 % |
| Zweigeschossige Wohnzone W2a | 187 | 54 % |
| W2 | 169 | 75 % |
| Dreigeschossige Wohnzone W3 | 100 | 87 % |
| Kernzone | 98 | 88 % |
| Strasse ausserhalb ZPS | 70 | 0 % |
| Zweigeschossige Wohn-Geschäftszone WG2a | 61 | 74 % |
| Zweigeschossige Wohn-Geschäftszone WG2b | 49 | 71 % |
| Zone für öffentliche Werke und Anlagen OeWA | 45 | 2 % |
| Other zones (24) | 183 | - |
Volume utilization (ratioV)
Of the 3’652 parcels with a value, half lie between 7 % and 84 %. The median is 54 % and the mean 52 %.
Share of parcels by range
- below 50 %46 %
- 50 % to below 100 %37 %
- 100 % to below 150 %15 %
- 150 % and above2 %
Floor-area ratio (GFZ)
Of the 3’652 parcels with a value, half lie between 0.07 and 0.69. The median is 0.43 and the mean 0.44.
Share of parcels by range
- below 0.5057 %
- 0.50 to below 1.0034 %
- 1.00 to below 1.508 %
- 1.50 and above1 %
Building height
Of the 2’392 parcels with a value, half lie between 8.0 m and 11.1 m. The median is 9.5 m and the mean 9.5 m.
Share of parcels by range
- below 8 m25 %
- 8 m to below 12 m63 %
- 12 m to below 20 m12 %
- 20 m and above< 1 %
Number of floors
Of the 2’291 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 344 %
- 3 to below 534 %
- 5 and above1 %
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 | 3’695 | 53 % |
| Last 60 years | 1’916 | 78 % |
| Last 40 years | 961 | 87 % |
| Last 20 years | 361 | 93 % |
| Last 15 years | 240 | 95 % |
| Last 10 years | 135 | 98 % |
| Last 5 years | 87 | 102 % |
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).