Kaiseraugst: observed built density
Municipality in the canton of Aargau · FSO no. 4252 · Parcel data as of July 2025
- Parcels
- 1’059
< 1 % of the canton
- Municipal zones
- 31
- Median utilization
- 76 %
Canton: 35 %
Switzerland: 10 %
- Median GFZ
- 0.52
Canton: 0.13
Switzerland: 0.09
- Median height
- 9.2 m
Canton: 9.3 m
Switzerland: 9.5 m
- Median floors
- 2.5
Canton: 2.2
Switzerland: 2.3
About Kaiseraugst
Kaiseraugst is a municipality in the canton of Aargau. The parcel data lists 1’059 parcels in 31 municipal zone types. The zone types with the most parcels are Wohnzone 3 (353), Wohnzone 2 (249) and Ortskernzone (99).
The median parcel is built to a volume utilization of 76 %; half of the parcels lie between 8 % and 108 %. The canton median is 35 %, so Kaiseraugst sits above it.
The median building height is 9.2 m at 2.5 floors, and the median floor-area ratio (GFZ) is 0.52. Parcels built in the last 20 years reach a mean volume utilization of 98 % (113 parcels), higher than the 82 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Wohnzone 3 | 353 | 97 % |
| Wohnzone 2 | 249 | 74 % |
| Ortskernzone | 99 | 97 % |
| Landwirtschaftszone | 69 | 0 % |
| Arbeitszone | 52 | 59 % |
| Zentrumszone | 50 | 87 % |
| Waldareal | 33 | 0 % |
| Wohnzone 4 | 28 | 106 % |
| Wohn- und Arbeitszone | 20 | 50 % |
| Zone für öffentliche Bauten und Anlagen | 13 | 5 % |
| Wohnzone 2+ | 12 | 68 % |
| Arbeitszone mit Schutz Umfeld Wohnzonen gemäss BNO § 20 Abs. 2 | 10 | 23 % |
| Other zones (19) | 71 | - |
Volume utilization (ratioV)
Of the 1’028 parcels with a value, half lie between 8 % and 108 %. The median is 76 % and the mean 76 %.
Share of parcels by range
- below 50 %36 %
- 50 % to below 100 %31 %
- 100 % to below 150 %24 %
- 150 % and above9 %
Floor-area ratio (GFZ)
Of the 1’028 parcels with a value, half lie between 0.08 and 0.81. The median is 0.52 and the mean 0.54.
Share of parcels by range
- below 0.5048 %
- 0.50 to below 1.0037 %
- 1.00 to below 1.5011 %
- 1.50 and above4 %
Building height
Of the 714 parcels with a value, half lie between 8.1 m and 10.8 m. The median is 9.2 m and the mean 9.8 m.
Share of parcels by range
- below 8 m23 %
- 8 m to below 12 m65 %
- 12 m to below 20 m10 %
- 20 m and above2 %
Number of floors
Of the 580 parcels with a value, half lie between 1.9 and 3.1. The median is 2.5 and the mean 2.5.
Share of parcels by range
- below 26 %
- 2 to below 344 %
- 3 to below 548 %
- 5 and above2 %
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 | 1’059 | 82 % |
| Last 60 years | 614 | 114 % |
| Last 40 years | 540 | 107 % |
| Last 20 years | 113 | 98 % |
| Last 15 years | 63 | 98 % |
| Last 10 years | 35 | 100 % |
| Last 5 years | 22 | 115 % |
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).