Ziefen: building age and utilization
Canton of Basel-Landschaft · 2'075 parcels in municipal zones · Parcel data of September 2026
- Parcels in zones
- 2'075
- Municipal zones
- 17
- Median utilization (ratioV)
- 7%
- Newest building from 2006 or later
- 6%
- Median building height
- 10.1 m
- Median floors
- 0.7
Overview
Ziefen: the parcel data lists 2'075 parcels in 17 municipal zones.
The median volume utilization (ratioV, as built today) is 7%, the average 31%. For comparison: canton of Basel-Landschaft, median 41%.
6% of the parcels have a newest building from 2006 or later. Their average utilization is 108%, against 33% for all parcels.
The median building height is 10.1 m and the median number of floors is 0.7.
Building age
Each parcel is counted by the construction year of its newest building. The oldest band also holds parcels without a building year, such as unbuilt land.
| Newest building | Parcels | Share |
|---|---|---|
| 2021 or later | 34 | 2% |
| 2016-2020 | 34 | 2% |
| 2011-2015 | 19 | 0.9% |
| 2006-2010 | 38 | 2% |
| 1986-2005 | 185 | 9% |
| 1966-1985 | 98 | 5% |
| 1965 or earlier, or no year | 1'667 | 80% |
Utilization by construction window
| Newest building | Parcels | Average utilization |
|---|---|---|
| Built 2021 or later | 34 | 89% |
| Built 2016 or later | 68 | 107% |
| Built 2011 or later | 87 | 110% |
| Built 2006 or later | 125 | 108% |
| Built 1986 or later | 310 | 108% |
| Built 1966 or later | 408 | 100% |
| All parcels | 2'075 | 33% |
Utilization (ratioV)
ratioV is the volume utilization of a parcel in percent, as built today; values above 100% occur on densely built parcels. The lowest bucket is mostly land with little or no building volume.
| Utilization (ratioV) | Parcels | Share |
|---|---|---|
| Under 10% | 1'477 | 72% |
| 10-50% | 68 | 3% |
| 50-100% | 220 | 11% |
| 100-150% | 172 | 8% |
| 150-200% | 77 | 4% |
| 200% or more | 43 | 2% |
Median: 7% · Average: 31% · Based on 2'057 parcels with a value.
Building height
Building height in meters, for parcels with a height value.
| Building height | Parcels | Share |
|---|---|---|
| Under 6 m | 37 | 6% |
| 6-10 m | 244 | 43% |
| 10-16 m | 290 | 51% |
| 16-30 m | 2 | 0.3% |
| 30 m or more | 0 | 0% |
Median: 10.1 m · Average: 9.9 m · Based on 573 parcels with a value.
Floors
Number of floors, for parcels with a floor count.
| Floors | Parcels | Share |
|---|---|---|
| 1 | 1'589 | 80% |
| 2 | 229 | 12% |
| 3 | 146 | 7% |
| 4 | 26 | 1% |
| 5-6 | 0 | 0% |
| 7 or more | 0 | 0% |
Median: 0.7 · Average: 0.6 · Based on 1'990 parcels with a value.
Other municipalities in the canton
| Place | Parcels | Median utilization | Median floors |
|---|---|---|---|
| Arlesheim | 2'450 | 68% | 2.3 |
| Liesberg | 2'438 | 6% | 0.6 |
| Bottmingen | 2'322 | 64% | 2.2 |
| Sissach | 2'303 | 61% | 1.9 |
| Biel-Benken | 2'214 | 42% | 1.3 |
| Bubendorf | 2'191 | 64% | 1.8 |
| Lausen | 2'059 | 54% | 2 |
| Rothenfluh | 1'969 | 6% | 0.6 |
| Wahlen | 1'761 | 7% | 0.7 |
| Röschenz | 1'749 | 8% | 0.8 |
| Ormalingen | 1'748 | 8% | 0.8 |
| Frenkendorf | 1'745 | 67% | 2.2 |
Explore
Method and data
The figures come from the Swiss parcel data (zone statistics of the RES service, pulled in September 2026). Each municipal zone is summarized on its own; a municipality is the sum of its zones, a canton the sum of its municipalities and Switzerland the sum of the cantons. Parcels outside a municipal zone are not counted.
Age uses the construction year of the newest building on a parcel. The distributions leave out the most extreme values, so the parcels with a value can be fewer than all parcels. Percentages are shares of the counts shown; medians are read from the buckets and are exact to within one bucket.
The pages describe what has been built and measured. They are not a forecast, a valuation or a statement of what may be built.