Birrwil: building age and utilization
Canton of Aargau · 1'282 parcels in municipal zones · Parcel data of September 2026
- Parcels in zones
- 1'282
- Municipal zones
- 20
- Median utilization (ratioV)
- 7%
- Newest building from 2006 or later
- 7%
- Median building height
- 9.9 m
- Median floors
- 0.7
Overview
Birrwil: the parcel data lists 1'282 parcels in 20 municipal zones.
The median volume utilization (ratioV, as built today) is 7%, the average 35%. For comparison: canton of Aargau, median 35%.
7% of the parcels have a newest building from 2006 or later. Their average utilization is 122%, against 40% for all parcels.
The median building height is 9.9 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 | 13 | 1% |
| 2016-2020 | 17 | 1% |
| 2011-2015 | 39 | 3% |
| 2006-2010 | 19 | 1% |
| 1986-2005 | 69 | 5% |
| 1966-1985 | 94 | 7% |
| 1965 or earlier, or no year | 1'031 | 80% |
Utilization by construction window
| Newest building | Parcels | Average utilization |
|---|---|---|
| Built 2021 or later | 13 | 133% |
| Built 2016 or later | 30 | 119% |
| Built 2011 or later | 69 | 128% |
| Built 2006 or later | 88 | 122% |
| Built 1986 or later | 157 | 118% |
| Built 1966 or later | 251 | 116% |
| All parcels | 1'282 | 40% |
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% | 884 | 70% |
| 10-50% | 68 | 5% |
| 50-100% | 126 | 10% |
| 100-150% | 106 | 8% |
| 150-200% | 36 | 3% |
| 200% or more | 46 | 4% |
Median: 7% · Average: 35% · Based on 1'266 parcels with a value.
Building height
Building height in meters, for parcels with a height value.
| Building height | Parcels | Share |
|---|---|---|
| Under 6 m | 30 | 8% |
| 6-10 m | 167 | 44% |
| 10-16 m | 182 | 48% |
| 16-30 m | 4 | 1% |
| 30 m or more | 0 | 0% |
Median: 9.9 m · Average: 9.9 m · Based on 383 parcels with a value.
Floors
Number of floors, for parcels with a floor count.
| Floors | Parcels | Share |
|---|---|---|
| 1 | 878 | 77% |
| 2 | 150 | 13% |
| 3 | 99 | 9% |
| 4 | 9 | 0.8% |
| 5-6 | 5 | 0.4% |
| 7 or more | 0 | 0% |
Median: 0.7 · Average: 0.6 · Based on 1'141 parcels with a value.
Other municipalities in the canton
| Place | Parcels | Median utilization | Median floors |
|---|---|---|---|
| Neuenhof | 1'319 | 54% | 2 |
| Oberrohrdorf | 1'318 | 61% | 2.3 |
| Fahrwangen | 1'314 | 22% | 0.9 |
| Othmarsingen | 1'314 | 54% | 1.5 |
| Niederwil (AG) | 1'298 | 63% | 1.9 |
| Waltenschwil | 1'292 | 67% | 2 |
| Hausen (AG) | 1'253 | 53% | 1.5 |
| Obermumpf | 1'230 | 7% | 0.7 |
| Zuzgen | 1'215 | 7% | 0.6 |
| Ennetbaden | 1'211 | 56% | 2.3 |
| Unterentfelden | 1'209 | 76% | 2.4 |
| Dottikon | 1'207 | 63% | 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.