Niederrohrdorf: observed built density
Municipality in the canton of Aargau · FSO no. 4035 · Parcel data as of July 2025
- Parcels
- 1’202
< 1 % of the canton
- Municipal zones
- 18
- Median utilization
- 64 %
Canton: 35 %
Switzerland: 10 %
- Median GFZ
- 0.36
Canton: 0.13
Switzerland: 0.09
- Median height
- 9.0 m
Canton: 9.3 m
Switzerland: 9.5 m
- Median floors
- 2.3
Canton: 2.2
Switzerland: 2.3
About Niederrohrdorf
Niederrohrdorf is a municipality in the canton of Aargau. The parcel data lists 1’202 parcels in 18 municipal zone types. The zone types with the most parcels are Wohnzone 2 (546), Wohnzone 3 (209) and Landwirtschaftszone (192).
The median parcel is built to a volume utilization of 64 %; half of the parcels lie between 7 % and 101 %. The canton median is 35 %, so Niederrohrdorf sits above it.
The median building height is 9.0 m at 2.3 floors, and the median floor-area ratio (GFZ) is 0.36. Parcels built in the last 20 years reach a mean volume utilization of 125 % (186 parcels), higher than the 79 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Wohnzone 2 | 546 | 82 % |
| Wohnzone 3 | 209 | 78 % |
| Landwirtschaftszone | 192 | 0 % |
| Wald | 101 | 0 % |
| Kernzone | 73 | 50 % |
| Wohn- und Gewerbezone 3 | 17 | 65 % |
| Zone für öffentliche Bauten und Anlagen | 14 | 58 % |
| Kantonsstrasse ausserhalb Bauzonen | 11 | 0 % |
| Arbeitszone | 8 | 100 % |
| Extensive Weide | 7 | 0 % |
| Fromentalwiese | 7 | 0 % |
| Kantonsstrasse innerhalb Bauzonen | 5 | 0 % |
| Other zones (6) | 12 | - |
Volume utilization (ratioV)
Of the 1’188 parcels with a value, half lie between 7 % and 101 %. The median is 64 % and the mean 74 %.
Share of parcels by range
- below 50 %42 %
- 50 % to below 100 %32 %
- 100 % to below 150 %15 %
- 150 % and above10 %
Floor-area ratio (GFZ)
Of the 1’187 parcels with a value, half lie between 0.07 and 0.66. The median is 0.36 and the mean 0.42.
Share of parcels by range
- below 0.5064 %
- 0.50 to below 1.0025 %
- 1.00 to below 1.508 %
- 1.50 and above2 %
Building height
Of the 725 parcels with a value, half lie between 7.2 m and 11.0 m. The median is 9.0 m and the mean 9.2 m.
Share of parcels by range
- below 8 m34 %
- 8 m to below 12 m50 %
- 12 m to below 20 m16 %
- 20 m and above0 %
Number of floors
Of the 611 parcels with a value, half lie between 1.8 and 3.1. The median is 2.3 and the mean 2.5.
Share of parcels by range
- below 212 %
- 2 to below 346 %
- 3 to below 540 %
- 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 | 1’202 | 79 % |
| Last 60 years | 585 | 113 % |
| Last 40 years | 359 | 119 % |
| Last 20 years | 186 | 125 % |
| Last 15 years | 110 | 127 % |
| Last 10 years | 79 | 131 % |
| Last 5 years | 34 | 137 % |
Open the map at Niederrohrdorf
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).