Sirnach: observed built density
Municipality in the canton of Thurgau · FSO no. 4761 · Parcel data as of July 2025
- Parcels
- 2’779
2 % of the canton
- Municipal zones
- 29
- Median utilization
- 67 %
Canton: 24 %
Switzerland: 10 %
- Median GFZ
- 0.37
Canton: 0.10
Switzerland: 0.09
- Median height
- 9.6 m
Canton: 9.7 m
Switzerland: 9.5 m
- Median floors
- 2.3
Canton: 2.3
Switzerland: 2.3
About Sirnach
Sirnach is a municipality in the canton of Thurgau. The parcel data lists 2’779 parcels in 29 municipal zone types. The zone types with the most parcels are Wohnzone W2 (895), Wohn- und Arbeitszone WA3 (382) and Landwirtschaftszone Lw (218).
The median parcel is built to a volume utilization of 67 %; half of the parcels lie between 7 % and 103 %. The canton median is 24 %, so Sirnach sits above it.
The median building height is 9.6 m at 2.3 floors, and the median floor-area ratio (GFZ) is 0.37. Parcels built in the last 20 years reach a mean volume utilization of 105 % (396 parcels), higher than the 67 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Wohnzone W2 | 895 | 90 % |
| Wohn- und Arbeitszone WA3 | 382 | 91 % |
| Landwirtschaftszone Lw | 218 | 0 % |
| Strasse innerhalb Bauzone SiB | 193 | 0 % |
| Wald | 181 | 0 % |
| Strasse ausserhalb Bauzone SaB | 164 | 0 % |
| Landschaftsschutzzone Ls | 107 | 0 % |
| Wohnzone W3 | 91 | 83 % |
| Dorfzone D2 | 88 | 101 % |
| Wohn- und Arbeitszone WA2 | 70 | 100 % |
| Dorfzone D4 | 67 | 79 % |
| Dorfzone D3 | 57 | 74 % |
| Other zones (17) | 266 | - |
Volume utilization (ratioV)
Of the 2’749 parcels with a value, half lie between 7 % and 103 %. The median is 67 % and the mean 64 %.
Share of parcels by range
- below 50 %42 %
- 50 % to below 100 %31 %
- 100 % to below 150 %19 %
- 150 % and above8 %
Floor-area ratio (GFZ)
Of the 2’747 parcels with a value, half lie between 0.07 and 0.60. The median is 0.37 and the mean 0.39.
Share of parcels by range
- below 0.5066 %
- 0.50 to below 1.0027 %
- 1.00 to below 1.506 %
- 1.50 and above1 %
Building height
Of the 1’739 parcels with a value, half lie between 8.2 m and 11.4 m. The median is 9.6 m and the mean 9.9 m.
Share of parcels by range
- below 8 m21 %
- 8 m to below 12 m63 %
- 12 m to below 20 m17 %
- 20 m and above0 %
Number of floors
Of the 1’458 parcels with a value, half lie between 1.8 and 3.0. The median is 2.3 and the mean 2.4.
Share of parcels by range
- below 27 %
- 2 to below 352 %
- 3 to below 538 %
- 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 | 2’779 | 67 % |
| Last 60 years | 1’270 | 102 % |
| Last 40 years | 896 | 106 % |
| Last 20 years | 396 | 105 % |
| Last 15 years | 261 | 109 % |
| Last 10 years | 143 | 115 % |
| Last 5 years | 75 | 114 % |
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).