Auw: observed built density
Municipality in the canton of Aargau · FSO no. 4223 · Parcel data as of July 2025
- Parcels
- 874
< 1 % of the canton
- Municipal zones
- 17
- Median utilization
- 62 %
Canton: 35 %
Switzerland: 10 %
- Median GFZ
- 0.29
Canton: 0.13
Switzerland: 0.09
- Median height
- 9.4 m
Canton: 9.3 m
Switzerland: 9.5 m
- Median floors
- 2.3
Canton: 2.2
Switzerland: 2.3
About Auw
Auw is a municipality in the canton of Aargau. The parcel data lists 874 parcels in 17 municipal zone types. The zone types with the most parcels are Landwirtschaftszone I (298), Wohnzone am Hang (181) and Wohnzone 2 (139).
The median parcel is built to a volume utilization of 62 %; half of the parcels lie between 6 % and 104 %. The canton median is 35 %, so Auw sits above it.
The median building height is 9.4 m at 2.3 floors, and the median floor-area ratio (GFZ) is 0.29. Parcels built in the last 20 years reach a mean volume utilization of 136 % (187 parcels), higher than the 80 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszone I | 298 | 0 % |
| Wohnzone am Hang | 181 | 92 % |
| Wohnzone 2 | 139 | 96 % |
| Dorfzone | 104 | 82 % |
| Wald | 32 | 0 % |
| Wohnzone 3 | 32 | 94 % |
| Gewerbezone | 24 | 62 % |
| Kantonsstrasse | 16 | 0 % |
| Wohn- und Gewerbezone 3 | 16 | 71 % |
| Zone für öffentliche Bauten und Anlagen | 12 | 57 % |
| Landwirtschaftszone II | 7 | 90 % |
| Gewässer | 6 | 0 % |
| Other zones (5) | 7 | - |
Volume utilization (ratioV)
Of the 859 parcels with a value, half lie between 6 % and 104 %. The median is 62 % and the mean 75 %.
Share of parcels by range
- below 50 %46 %
- 50 % to below 100 %27 %
- 100 % to below 150 %19 %
- 150 % and above8 %
Floor-area ratio (GFZ)
Of the 859 parcels with a value, half lie between 0.06 and 0.53. The median is 0.29 and the mean 0.32.
Share of parcels by range
- below 0.5072 %
- 0.50 to below 1.0022 %
- 1.00 to below 1.505 %
- 1.50 and above1 %
Building height
Of the 487 parcels with a value, half lie between 8.1 m and 11.4 m. The median is 9.4 m and the mean 9.7 m.
Share of parcels by range
- below 8 m24 %
- 8 m to below 12 m57 %
- 12 m to below 20 m18 %
- 20 m and above0 %
Number of floors
Of the 362 parcels with a value, half lie between 1.9 and 3.0. The median is 2.3 and the mean 2.4.
Share of parcels by range
- below 25 %
- 2 to below 354 %
- 3 to below 540 %
- 5 and above< 1 %
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 | 874 | 80 % |
| Last 60 years | 434 | 124 % |
| Last 40 years | 367 | 128 % |
| Last 20 years | 187 | 136 % |
| Last 15 years | 136 | 143 % |
| Last 10 years | 60 | 164 % |
| Last 5 years | 22 | 147 % |
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).