Therwil: building age and utilization
Canton of Basel-Landschaft · 4'030 parcels in municipal zones · Parcel data of September 2026
- Parcels in zones
- 4'030
- Municipal zones
- 40
- Median utilization (ratioV)
- 57%
- Newest building from 2006 or later
- 6%
- Median building height
- 8.8 m
- Median floors
- 1.9
Overview
Therwil: the parcel data lists 4'030 parcels in 40 municipal zones.
The median volume utilization (ratioV, as built today) is 57%, the average 53%. For comparison: canton of Basel-Landschaft, median 41%.
6% of the parcels have a newest building from 2006 or later. Their average utilization is 104%, against 55% for all parcels.
The median building height is 8.8 m and the median number of floors is 1.9.
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 | 32 | 0.8% |
| 2016-2020 | 49 | 1% |
| 2011-2015 | 76 | 2% |
| 2006-2010 | 99 | 2% |
| 1986-2005 | 791 | 20% |
| 1966-1985 | 880 | 22% |
| 1965 or earlier, or no year | 2'103 | 52% |
Utilization by construction window
| Newest building | Parcels | Average utilization |
|---|---|---|
| Built 2021 or later | 32 | 110% |
| Built 2016 or later | 81 | 103% |
| Built 2011 or later | 157 | 106% |
| Built 2006 or later | 256 | 104% |
| Built 1986 or later | 1'047 | 91% |
| Built 1966 or later | 1'927 | 86% |
| All parcels | 4'030 | 55% |
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% | 1'464 | 37% |
| 10-50% | 352 | 9% |
| 50-100% | 1'463 | 37% |
| 100-150% | 600 | 15% |
| 150-200% | 81 | 2% |
| 200% or more | 19 | 0.5% |
Median: 57% · Average: 53% · Based on 3'979 parcels with a value.
Building height
Building height in meters, for parcels with a height value.
| Building height | Parcels | Share |
|---|---|---|
| Under 6 m | 374 | 15% |
| 6-10 m | 1'351 | 55% |
| 10-16 m | 702 | 29% |
| 16-30 m | 24 | 1% |
| 30 m or more | 0 | 0% |
Median: 8.8 m · Average: 8.5 m · Based on 2'451 parcels with a value.
Floors
Number of floors, for parcels with a floor count.
| Floors | Parcels | Share |
|---|---|---|
| 1 | 1'967 | 52% |
| 2 | 993 | 26% |
| 3 | 692 | 18% |
| 4 | 122 | 3% |
| 5-6 | 16 | 0.4% |
| 7 or more | 5 | 0.1% |
Median: 1.9 · Average: 1.4 · Based on 3'795 parcels with a value.
Other municipalities in the canton
| Place | Parcels | Median utilization | Median floors |
|---|---|---|---|
| Reinach (BL) | 5'931 | 72% | 2.1 |
| Allschwil | 5'096 | 60% | 2 |
| Muttenz | 4'953 | 64% | 2.3 |
| Pratteln | 4'002 | 62% | 1.9 |
| Liestal | 3'981 | 63% | 2.2 |
| Oberwil (BL) | 3'695 | 54% | 2.1 |
| Münchenstein | 3'502 | 86% | 2.3 |
| Binningen | 3'436 | 66% | 2.4 |
| Aesch (BL) | 3'374 | 68% | 1.9 |
| Gelterkinden | 3'054 | 42% | 1.3 |
| Ettingen | 2'615 | 10% | 1 |
| Laufen | 2'587 | 10% | 1 |
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.