Erlen: observed built density
Municipality in the canton of Thurgau · FSO no. 4476 · Parcel data as of July 2025
- Parcels
- 2’427
2 % of the canton
- Municipal zones
- 24
- Median utilization
- 9 %
Canton: 24 %
Switzerland: 10 %
- Median GFZ
- 0.09
Canton: 0.10
Switzerland: 0.09
- Median height
- 9.3 m
Canton: 9.7 m
Switzerland: 9.5 m
- Median floors
- 2.1
Canton: 2.3
Switzerland: 2.3
About Erlen
Erlen is a municipality in the canton of Thurgau. The parcel data lists 2’427 parcels in 24 municipal zone types. The zone types with the most parcels are Landwirtschaftszone (469), Dorfzone 2 (375) and Landschaftsschutzzone (289).
The median parcel is built to a volume utilization of 9 %; half of the parcels lie between 5 % and 91 %. The canton median is 24 %, so Erlen sits below it.
The median building height is 9.3 m at 2.1 floors, and the median floor-area ratio (GFZ) is 0.09. Parcels built in the last 20 years reach a mean volume utilization of 109 % (321 parcels), higher than the 55 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Landwirtschaftszone | 469 | 0 % |
| Dorfzone 2 | 375 | 98 % |
| Landschaftsschutzzone | 289 | 0 % |
| Wohnzone W2a | 271 | 87 % |
| Wald | 269 | 0 % |
| Wohnzone W2b | 192 | 93 % |
| Strassenflächen innerhalb von Bauzonen | 139 | 0 % |
| Strassenflächen ausserhalb von Bauzonen | 123 | 0 % |
| Wohn- und Arbeitszone 2 | 93 | 93 % |
| Wohn- und Arbeitszone 3 | 70 | 96 % |
| Arbeitszone Industrie | 39 | 0 % |
| Wohnzone W3 | 28 | 72 % |
| Other zones (12) | 70 | - |
Volume utilization (ratioV)
Of the 2’397 parcels with a value, half lie between 5 % and 91 %. The median is 9 % and the mean 52 %.
Share of parcels by range
- below 50 %60 %
- 50 % to below 100 %19 %
- 100 % to below 150 %15 %
- 150 % and above7 %
Floor-area ratio (GFZ)
Of the 2’396 parcels with a value, half lie between 0.04 and 0.43. The median is 0.09 and the mean 0.22.
Share of parcels by range
- below 0.5081 %
- 0.50 to below 1.0016 %
- 1.00 to below 1.503 %
- 1.50 and above< 1 %
Building height
Of the 1’044 parcels with a value, half lie between 7.7 m and 11.0 m. The median is 9.3 m and the mean 9.4 m.
Share of parcels by range
- below 8 m28 %
- 8 m to below 12 m59 %
- 12 m to below 20 m12 %
- 20 m and above< 1 %
Number of floors
Of the 811 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 214 %
- 2 to below 359 %
- 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 | 2’427 | 55 % |
| Last 60 years | 812 | 109 % |
| Last 40 years | 604 | 109 % |
| Last 20 years | 321 | 109 % |
| Last 15 years | 246 | 113 % |
| Last 10 years | 131 | 129 % |
| Last 5 years | 60 | 165 % |
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).