Birmenstorf (AG): building age and utilization
Canton of Aargau · 1'520 parcels in municipal zones · Parcel data of September 2026
- Parcels in zones
- 1'520
- Municipal zones
- 23
- Median utilization (ratioV)
- 31%
- Newest building from 2006 or later
- 10%
- Median building height
- 9.2 m
- Median floors
- 0.9
Overview
Birmenstorf (AG): the parcel data lists 1'520 parcels in 23 municipal zones.
The median volume utilization (ratioV, as built today) is 31%, the average 54%. For comparison: canton of Aargau, median 35%.
10% of the parcels have a newest building from 2006 or later. Their average utilization is 113%, against 57% for all parcels.
The median building height is 9.2 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 | 12 | 0.8% |
| 2016-2020 | 14 | 0.9% |
| 2011-2015 | 49 | 3% |
| 2006-2010 | 78 | 5% |
| 1986-2005 | 257 | 17% |
| 1966-1985 | 187 | 12% |
| 1965 or earlier, or no year | 923 | 61% |
Utilization by construction window
| Newest building | Parcels | Average utilization |
|---|---|---|
| Built 2021 or later | 12 | 116% |
| Built 2016 or later | 26 | 101% |
| Built 2011 or later | 75 | 113% |
| Built 2006 or later | 153 | 113% |
| Built 1986 or later | 410 | 103% |
| Built 1966 or later | 597 | 96% |
| All parcels | 1'520 | 57% |
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% | 721 | 48% |
| 10-50% | 86 | 6% |
| 50-100% | 393 | 26% |
| 100-150% | 182 | 12% |
| 150-200% | 68 | 5% |
| 200% or more | 53 | 4% |
Median: 31% · Average: 54% · Based on 1'503 parcels with a value.
Building height
Building height in meters, for parcels with a height value.
| Building height | Parcels | Share |
|---|---|---|
| Under 6 m | 88 | 12% |
| 6-10 m | 409 | 54% |
| 10-16 m | 261 | 34% |
| 16-30 m | 6 | 0.8% |
| 30 m or more | 0 | 0% |
Median: 9.2 m · Average: 9.2 m · Based on 764 parcels with a value.
Floors
Number of floors, for parcels with a floor count.
| Floors | Parcels | Share |
|---|---|---|
| 1 | 727 | 58% |
| 2 | 283 | 23% |
| 3 | 216 | 17% |
| 4 | 23 | 2% |
| 5-6 | 5 | 0.4% |
| 7 or more | 1 | 0.1% |
Median: 0.9 · Average: 1.1 · Based on 1'255 parcels with a value.
Other municipalities in the canton
| Place | Parcels | Median utilization | Median floors |
|---|---|---|---|
| Niederlenz | 1'610 | 79% | 2.3 |
| Safenwil | 1'606 | 71% | 2.2 |
| Reitnau | 1'604 | 7% | 0.7 |
| Böttstein | 1'602 | 10% | 0.8 |
| Boswil | 1'538 | 18% | 0.9 |
| Döttingen | 1'535 | 43% | 1.4 |
| Mellingen | 1'520 | 59% | 2.3 |
| Rudolfstetten-Friedlisberg | 1'511 | 63% | 2.1 |
| Sarmenstorf | 1'495 | 62% | 2 |
| Wittnau | 1'476 | 7% | 0.7 |
| Lupfig | 1'452 | 10% | 0.9 |
| Remigen | 1'451 | 7% | 0.6 |
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.