Boniswil: building age and utilization
Canton of Aargau · 1'109 parcels in municipal zones · Parcel data of September 2026
- Parcels in zones
- 1'109
- Municipal zones
- 18
- Median utilization (ratioV)
- 9%
- Newest building from 2006 or later
- 10%
- Median building height
- 8.6 m
- Median floors
- 0.9
Overview
Boniswil: the parcel data lists 1'109 parcels in 18 municipal zones.
The median volume utilization (ratioV, as built today) is 9%, the average 41%. For comparison: canton of Aargau, median 35%.
10% of the parcels have a newest building from 2006 or later. Their average utilization is 108%, against 43% for all parcels.
The median building height is 8.6 m and the median number of floors is 0.9.
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 | 28 | 3% |
| 2016-2020 | 24 | 2% |
| 2011-2015 | 27 | 2% |
| 2006-2010 | 33 | 3% |
| 1986-2005 | 170 | 15% |
| 1966-1985 | 111 | 10% |
| 1965 or earlier, or no year | 716 | 65% |
Utilization by construction window
| Newest building | Parcels | Average utilization |
|---|---|---|
| Built 2021 or later | 28 | 142% |
| Built 2016 or later | 52 | 120% |
| Built 2011 or later | 79 | 117% |
| Built 2006 or later | 112 | 108% |
| Built 1986 or later | 282 | 94% |
| Built 1966 or later | 393 | 89% |
| All parcels | 1'109 | 43% |
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% | 583 | 53% |
| 10-50% | 74 | 7% |
| 50-100% | 268 | 25% |
| 100-150% | 133 | 12% |
| 150-200% | 25 | 2% |
| 200% or more | 8 | 0.7% |
Median: 9% · Average: 41% · Based on 1'091 parcels with a value.
Building height
Building height in meters, for parcels with a height value.
| Building height | Parcels | Share |
|---|---|---|
| Under 6 m | 26 | 5% |
| 6-10 m | 314 | 66% |
| 10-16 m | 137 | 29% |
| 16-30 m | 1 | 0.2% |
| 30 m or more | 0 | 0% |
Median: 8.6 m · Average: 8.9 m · Based on 478 parcels with a value.
Floors
Number of floors, for parcels with a floor count.
| Floors | Parcels | Share |
|---|---|---|
| 1 | 624 | 64% |
| 2 | 247 | 26% |
| 3 | 85 | 9% |
| 4 | 8 | 0.8% |
| 5-6 | 4 | 0.4% |
| 7 or more | 0 | 0% |
Median: 0.9 · Average: 0.9 · Based on 968 parcels with a value.
Other municipalities in the canton
| Place | Parcels | Median utilization | Median floors |
|---|---|---|---|
| Wallbach | 1'202 | 63% | 1.9 |
| Oberwil-Lieli | 1'194 | 45% | 1.4 |
| Hunzenschwil | 1'163 | 77% | 2.2 |
| Densbüren | 1'149 | 7% | 0.7 |
| Birr | 1'146 | 78% | 2.2 |
| Schupfart | 1'113 | 7% | 0.6 |
| Dürrenäsch | 1'093 | 9% | 0.8 |
| Egliswil | 1'084 | 9% | 0.8 |
| Vordemwald | 1'082 | 54% | 1.1 |
| Tegerfelden | 1'079 | 8% | 0.7 |
| Schneisingen | 1'075 | 9% | 0.8 |
| Widen | 1'063 | 60% | 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.