Spreitenbach: observed built density
Municipality in the canton of Aargau · FSO no. 4040 · Parcel data as of July 2025
- Parcels
- 2’035
1 % of the canton
- Municipal zones
- 32
- Median utilization
- 9 %
Canton: 35 %
Switzerland: 10 %
- Median GFZ
- 0.09
Canton: 0.13
Switzerland: 0.09
- Median height
- 9.8 m
Canton: 9.3 m
Switzerland: 9.5 m
- Median floors
- 2.6
Canton: 2.2
Switzerland: 2.3
About Spreitenbach
Spreitenbach is a municipality in the canton of Aargau. The parcel data lists 2’035 parcels in 32 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (446), Wohnzone 2 (273) and Wald (260).
The median parcel is built to a volume utilization of 9 %; half of the parcels lie between 5 % and 80 %. The canton median is 35 %, so Spreitenbach sits below it.
The median building height is 9.8 m at 2.6 floors, and the median floor-area ratio (GFZ) is 0.09. Parcels built in the last 20 years reach a mean volume utilization of 105 % (155 parcels), higher than the 44 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszone | 446 | 0 % |
| Wohnzone 2 | 273 | 94 % |
| Wald | 260 | 0 % |
| Einfamilienhauszone | 242 | 80 % |
| Dorfkernzone | 167 | 66 % |
| Arbeitsplatzzone 1 | 122 | 54 % |
| Wohnzone 3 | 116 | 66 % |
| Wohnzone Bestand | 97 | 31 % |
| Zone für öffentliche Bauten und Anlagen | 76 | 0 % |
| Wohn- und Gewerbezone 3 | 57 | 59 % |
| Wohnzone 5 | 28 | 68 % |
| Grünzone | 18 | 0 % |
| Other zones (20) | 133 | - |
Volume utilization (ratioV)
Of the 2’001 parcels with a value, half lie between 5 % and 80 %. The median is 9 % and the mean 41 %.
Share of parcels by range
- below 50 %63 %
- 50 % to below 100 %21 %
- 100 % to below 150 %12 %
- 150 % and above4 %
Floor-area ratio (GFZ)
Of the 2’000 parcels with a value, half lie between 0.05 and 0.65. The median is 0.09 and the mean 0.38.
Share of parcels by range
- below 0.5067 %
- 0.50 to below 1.0021 %
- 1.00 to below 1.508 %
- 1.50 and above4 %
Building height
Of the 915 parcels with a value, half lie between 8.4 m and 12.6 m. The median is 9.8 m and the mean 11.6 m.
Share of parcels by range
- below 8 m18 %
- 8 m to below 12 m54 %
- 12 m to below 20 m22 %
- 20 m and above6 %
Number of floors
Of the 682 parcels with a value, half lie between 2.0 and 3.3. The median is 2.6 and the mean 3.0.
Share of parcels by range
- below 26 %
- 2 to below 338 %
- 3 to below 549 %
- 5 and above7 %
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 | 2’035 | 44 % |
| Last 60 years | 747 | 94 % |
| Last 40 years | 526 | 99 % |
| Last 20 years | 155 | 105 % |
| Last 15 years | 85 | 110 % |
| Last 10 years | 48 | 113 % |
| Last 5 years | 14 | 103 % |
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).