Buchs (AG): observed built density
Municipality in the canton of Aargau · FSO no. 4003 · Parcel data as of July 2025
- Parcels
- 1’893
1 % of the canton
- Municipal zones
- 26
- Median utilization
- 84 %
Canton: 35 %
Switzerland: 10 %
- Median GFZ
- 0.41
Canton: 0.13
Switzerland: 0.09
- Median height
- 8.9 m
Canton: 9.3 m
Switzerland: 9.5 m
- Median floors
- 2.1
Canton: 2.2
Switzerland: 2.3
About Buchs (AG)
Buchs (AG) is a municipality in the canton of Aargau. The parcel data lists 1’893 parcels in 26 municipal zone types. The zone types with the most parcels are Wohnzone a (797), Gartenstadtzone (443) and Wohn- und Arbeitszone (135).
The median parcel is built to a volume utilization of 84 %; half of the parcels lie between 38 % and 112 %. The canton median is 35 %, so Buchs (AG) sits above it.
The median building height is 8.9 m at 2.1 floors, and the median floor-area ratio (GFZ) is 0.41. Parcels built in the last 20 years reach a mean volume utilization of 111 % (208 parcels), higher than the 82 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Wohnzone a | 797 | 88 % |
| Gartenstadtzone | 443 | 91 % |
| Wohn- und Arbeitszone | 135 | 87 % |
| Wohnzone b | 129 | 71 % |
| Zentrumszone Aarauerstrasse | 75 | 82 % |
| Arbeitszone II | 60 | 64 % |
| Zentrumszone Mitteldorf | 56 | 40 % |
| Landwirtschaftszone | 44 | 0 % |
| Wald | 27 | 0 % |
| Zone für öffentliche Bauten und Anlagen | 25 | 12 % |
| Kantons- und Nationalstrasse innerhalb | 19 | 0 % |
| Grünzone | 16 | 0 % |
| Other zones (14) | 67 | - |
Volume utilization (ratioV)
Of the 1’867 parcels with a value, half lie between 38 % and 112 %. The median is 84 % and the mean 80 %.
Share of parcels by range
- below 50 %27 %
- 50 % to below 100 %39 %
- 100 % to below 150 %24 %
- 150 % and above10 %
Floor-area ratio (GFZ)
Of the 1’864 parcels with a value, half lie between 0.20 and 0.58. The median is 0.41 and the mean 0.42.
Share of parcels by range
- below 0.5066 %
- 0.50 to below 1.0030 %
- 1.00 to below 1.503 %
- 1.50 and above1 %
Building height
Of the 1’413 parcels with a value, half lie between 7.3 m and 10.6 m. The median is 8.9 m and the mean 9.0 m.
Share of parcels by range
- below 8 m34 %
- 8 m to below 12 m56 %
- 12 m to below 20 m9 %
- 20 m and above1 %
Number of floors
Of the 1’003 parcels with a value, half lie between 1.7 and 2.6. The median is 2.1 and the mean 2.2.
Share of parcels by range
- below 210 %
- 2 to below 363 %
- 3 to below 527 %
- 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 | 1’893 | 82 % |
| Last 60 years | 807 | 107 % |
| Last 40 years | 495 | 108 % |
| Last 20 years | 208 | 111 % |
| Last 15 years | 142 | 114 % |
| Last 10 years | 89 | 122 % |
| Last 5 years | 33 | 137 % |
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).