Lachen: observed built density
Municipality in the canton of Schwyz · FSO no. 1344 · Parcel data as of July 2025
- Parcels
- 1’425
3 % of the canton
- Municipal zones
- 19
- Median utilization
- 67 %
Canton: 62 %
Switzerland: 10 %
- Median GFZ
- 0.63
Canton: 0.37
Switzerland: 0.09
- Median height
- 10.8 m
Canton: 10.2 m
Switzerland: 9.5 m
- Median floors
- 3.0
Canton: 2.6
Switzerland: 2.3
About Lachen
Lachen is a municipality in the canton of Schwyz. The parcel data lists 1’425 parcels in 19 municipal zone types. The zone types with the most parcels are Wohnzone 2 (412), Wohnzone 3 (336) and Wohngewerbezone 3 (201).
The median parcel is built to a volume utilization of 67 %; half of the parcels lie between 29 % and 99 %. The canton median is 62 %, close to the level of Lachen.
The median building height is 10.8 m at 3.0 floors, and the median floor-area ratio (GFZ) is 0.63. Parcels built in the last 20 years reach a mean volume utilization of 103 % (227 parcels), higher than the 77 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Wohnzone 2 | 412 | 71 % |
| Wohnzone 3 | 336 | 76 % |
| Wohngewerbezone 3 | 201 | 57 % |
| Kernzone 1 | 173 | 92 % |
| Kernrandzone | 79 | 57 % |
| Verkehrsflächen innerhalb Bauzone | 51 | 0 % |
| Kernzone 2 | 46 | 53 % |
| Gewerbezone I | 34 | 84 % |
| Wohngewerbezone 2 | 34 | 64 % |
| Industriezone | 17 | 55 % |
| Öffentliche Zone | 12 | 72 % |
| Landwirtschftszone | 11 | 100 % |
| Other zones (7) | 19 | - |
Volume utilization (ratioV)
Of the 1’407 parcels with a value, half lie between 29 % and 99 %. The median is 67 % and the mean 72 %.
Share of parcels by range
- below 50 %35 %
- 50 % to below 100 %41 %
- 100 % to below 150 %18 %
- 150 % and above7 %
Floor-area ratio (GFZ)
Of the 1’407 parcels with a value, half lie between 0.30 and 1.11. The median is 0.63 and the mean 0.80.
Share of parcels by range
- below 0.5039 %
- 0.50 to below 1.0032 %
- 1.00 to below 1.5015 %
- 1.50 and above14 %
Building height
Of the 1’098 parcels with a value, half lie between 8.8 m and 13.3 m. The median is 10.8 m and the mean 11.1 m.
Share of parcels by range
- below 8 m14 %
- 8 m to below 12 m51 %
- 12 m to below 20 m35 %
- 20 m and above1 %
Number of floors
Of the 935 parcels with a value, half lie between 2.3 and 3.9. The median is 3.0 and the mean 3.1.
Share of parcels by range
- below 23 %
- 2 to below 329 %
- 3 to below 557 %
- 5 and above11 %
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 | 1’425 | 77 % |
| Last 60 years | 773 | 104 % |
| Last 40 years | 531 | 104 % |
| Last 20 years | 227 | 103 % |
| Last 15 years | 147 | 105 % |
| Last 10 years | 93 | 108 % |
| Last 5 years | 36 | 105 % |
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).