Untersiggenthal: observed built density
Municipality in the canton of Aargau · FSO no. 4044 · Parcel data as of July 2025
- Parcels
- 2’873
1 % of the canton
- Municipal zones
- 28
- Median utilization
- 34 %
Canton: 35 %
Switzerland: 10 %
- Median GFZ
- 0.17
Canton: 0.13
Switzerland: 0.09
- Median height
- 9.2 m
Canton: 9.3 m
Switzerland: 9.5 m
- Median floors
- 2.3
Canton: 2.2
Switzerland: 2.3
About Untersiggenthal
Untersiggenthal is a municipality in the canton of Aargau. The parcel data lists 2’873 parcels in 28 municipal zone types. The zone types with the most parcels are Wohnzone 2 (995), Landwirtschaftszone (480) and Wald (382).
The median parcel is built to a volume utilization of 34 %; half of the parcels lie between 5 % and 95 %. The canton median is 35 %, close to the level of Untersiggenthal.
The median building height is 9.2 m at 2.3 floors, and the median floor-area ratio (GFZ) is 0.17. Parcels built in the last 20 years reach a mean volume utilization of 105 % (264 parcels), higher than the 58 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Wohnzone 2 | 995 | 81 % |
| Landwirtschaftszone | 480 | 0 % |
| Wald | 382 | 0 % |
| Dorfzone | 169 | 91 % |
| Einfamilienhauszone | 145 | 102 % |
| Wohnzone Steilhang | 140 | 76 % |
| Wohnzone 3 | 128 | 93 % |
| Wasserschlossdekret (kantonaler Nutzungsplan) | 110 | 0 % |
| Zentrumszone | 58 | 45 % |
| Magerwiese | 45 | 0 % |
| Feuchtstandort | 31 | 0 % |
| Arbeitszone I | 25 | 48 % |
| Other zones (16) | 165 | - |
Volume utilization (ratioV)
Of the 2’840 parcels with a value, half lie between 5 % and 95 %. The median is 34 % and the mean 54 %.
Share of parcels by range
- below 50 %53 %
- 50 % to below 100 %25 %
- 100 % to below 150 %14 %
- 150 % and above8 %
Floor-area ratio (GFZ)
Of the 2’840 parcels with a value, half lie between 0.05 and 0.58. The median is 0.17 and the mean 0.34.
Share of parcels by range
- below 0.5069 %
- 0.50 to below 1.0024 %
- 1.00 to below 1.505 %
- 1.50 and above2 %
Building height
Of the 1’400 parcels with a value, half lie between 7.7 m and 10.9 m. The median is 9.2 m and the mean 9.4 m.
Share of parcels by range
- below 8 m29 %
- 8 m to below 12 m60 %
- 12 m to below 20 m11 %
- 20 m and above1 %
Number of floors
Of the 1’190 parcels with a value, half lie between 1.8 and 2.9. The median is 2.3 and the mean 2.3.
Share of parcels by range
- below 29 %
- 2 to below 353 %
- 3 to below 537 %
- 5 and above1 %
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 | 2’873 | 58 % |
| Last 60 years | 1’083 | 110 % |
| Last 40 years | 723 | 116 % |
| Last 20 years | 264 | 105 % |
| Last 15 years | 175 | 108 % |
| Last 10 years | 112 | 110 % |
| Last 5 years | 58 | 110 % |
Open the map at Untersiggenthal
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).