Dürrenäsch: observed built density
Municipality in the canton of Aargau · FSO no. 4134 · Parcel data as of July 2025
- Parcels
- 1’093
< 1 % of the canton
- Municipal zones
- 17
- Median utilization
- 9 %
Canton: 35 %
Switzerland: 10 %
- Median GFZ
- 0.08
Canton: 0.13
Switzerland: 0.09
- Median height
- 9.3 m
Canton: 9.3 m
Switzerland: 9.5 m
- Median floors
- 2.2
Canton: 2.2
Switzerland: 2.3
About Dürrenäsch
Dürrenäsch is a municipality in the canton of Aargau. The parcel data lists 1’093 parcels in 17 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (415), Wohnzone 2 Geschosse (323) and Wald (191).
The median parcel is built to a volume utilization of 9 %; half of the parcels lie between 4 % and 80 %. The canton median is 35 %, so Dürrenäsch sits below it.
The median building height is 9.3 m at 2.2 floors, and the median floor-area ratio (GFZ) is 0.08. Parcels built in the last 20 years reach a mean volume utilization of 103 % (116 parcels), higher than the 44 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszone | 415 | 0 % |
| Wohnzone 2 Geschosse | 323 | 78 % |
| Wald | 191 | 0 % |
| Wohn- und Gewerbezone 2 Geschosse | 59 | 92 % |
| Dorfkernzone | 31 | 48 % |
| Beschränkte Bauzone | 26 | 100 % |
| Arbeitszone | 11 | 0 % |
| Zone für öffentliche Bauten und Anlagen | 11 | 87 % |
| Wohn- und Gewerbezone 3 Geschosse | 6 | 100 % |
| Wohnzone 3 Geschosse | 5 | 75 % |
| Kantons- und Nationalstrassen ausserhalb Baugebiet | 4 | 0 % |
| Speziallandwirtschaftszone Baumschule | 3 | 0 % |
| Other zones (5) | 8 | - |
Volume utilization (ratioV)
Of the 1’079 parcels with a value, half lie between 4 % and 80 %. The median is 9 % and the mean 41 %.
Share of parcels by range
- below 50 %65 %
- 50 % to below 100 %19 %
- 100 % to below 150 %11 %
- 150 % and above5 %
Floor-area ratio (GFZ)
Of the 1’078 parcels with a value, half lie between 0.04 and 0.36. The median is 0.08 and the mean 0.18.
Share of parcels by range
- below 0.5087 %
- 0.50 to below 1.0012 %
- 1.00 to below 1.501 %
- 1.50 and above0 %
Building height
Of the 427 parcels with a value, half lie between 8.0 m and 10.8 m. The median is 9.3 m and the mean 9.5 m.
Share of parcels by range
- below 8 m25 %
- 8 m to below 12 m67 %
- 12 m to below 20 m8 %
- 20 m and above< 1 %
Number of floors
Of the 350 parcels with a value, half lie between 1.8 and 2.8. The median is 2.2 and the mean 2.2.
Share of parcels by range
- below 211 %
- 2 to below 355 %
- 3 to below 534 %
- 5 and above0 %
Building age cohorts
Mean volume utilization of the parcels built inside each window, from all years on record down to the last five. The windows overlap: the last 20 years include the last 5.
| Built in | Parcels | Mean utilization |
|---|---|---|
| All years | 1’093 | 44 % |
| Last 60 years | 329 | 94 % |
| Last 40 years | 229 | 96 % |
| Last 20 years | 116 | 103 % |
| Last 15 years | 78 | 104 % |
| Last 10 years | 52 | 110 % |
| Last 5 years | 13 | 120 % |
How to read this page
room shows observed built density: what has been built on the parcels, not what the zoning permits. Volume utilization (ratioV) compares the built volume of a parcel with the reference volume of its municipal zone type. The floor-area ratio (GFZ) is floor area divided by parcel area; building height and number of floors are taken from the buildings on a parcel. Figures pool all municipal zones of the area. Medians and quartiles are read from bins 10 points (ratioV), 0.1 (GFZ), 2 m (height) and 1 floor wide, so they are exact to within one bin; means are exact. A parcel counts in a distribution only when the parcel data has a value for it. The floors distribution leaves out parcels without a building (0 floors).