Niederhelfenschwil
Municipality in the canton of St. Gallen · FSO no. 3423
Parcel data from Nov 2026, statistics computed on 29 Oct 2026.
Open map at the Niederhelfenschwil centerThe parcel data lists 1’768 parcels in Niederhelfenschwil, covering 16.4 km². 55.5% of them have at least one registered building. The median parcel measures 1’201 m².
Key figures
- Parcels
- 1’768
- 0.9% of the canton
- Total area
- 16.4 km²
- 0.8% of the canton
- Median area
- 1’201 m²
- Canton: 950 m²
- Switzerland: 881 m²
- Built share
- 55.5%
- Canton: 66.4%
- Switzerland: 51%
- Median year built
- 1993
- Canton: 1977
- Switzerland: 1975
About Niederhelfenschwil
Niederhelfenschwil ranks 49th of 75 municipalities in the canton of St. Gallen by number of parcels and holds 0.9% of the canton's parcels on 0.8% of its area. The median parcel in Niederhelfenschwil measures 1’201 m², larger than the canton median of 950 m². Niederhelfenschwil is less built-up than the canton as a whole: 55.5% of its parcels have a building, against 66.4% across the canton.
The zones with the most parcels are BauG Landwirtschaftszone (29.5%), BauG Wohnzone WE (16.7%) and Hinweis.Wald (16.2%). In total, Niederhelfenschwil uses 19 zone designations.
According to the building register, Niederhelfenschwil has 1’680 buildings with 1’381 dwellings, 0.8 dwellings per building on average. Most residential buildings are single-family houses (79.8%). Non-residential buildings account for 41.5% of all buildings.
Built parcels most often have their newest building from 1981 to 2000 (32.9% of them), and 33.5% have one from 2001 or later. The median year built, 1993, is more recent than in the canton as a whole (1977).
Built and unbuilt parcels
Built: 981 (55.5%)
Unbuilt: 787 (44.5%)
Parcels by zone
| Zone | Parcels | Area | Built |
|---|---|---|---|
| BauG_Landwirtschaftszone | 522 | 12.18 km² | 41.0% |
| BauG_Wohnzone WE | 295 | 0.23 km² | 95.6% |
| Hinweis.Wald | 286 | 2.88 km² | 5.6% |
| BauG_Wohn-Gewerbezone WG2 | 217 | 0.20 km² | 88.0% |
| BauG_Wohnzone W2 | 125 | 0.09 km² | 91.2% |
| BauG_Kernzone K2 | 93 | 0.10 km² | 93.5% |
| Hinweis.Verkehrsflaeche aB | 66 | 0.17 km² | 1.5% |
| Hinweis.Verkehrsflaeche iB | 48 | 0.07 km² | 0.0% |
| BauG_Weilerzone | 28 | 0.04 km² | 85.7% |
| BauG_Zone für öffentliche Bauten und Anlagen | 20 | 0.11 km² | 75.0% |
| BauG_übriges Gemeindegebiet allg | 17 | 0.05 km² | 58.8% |
| BauG_Gewerbe-Industriezone GI A | 15 | 0.08 km² | 86.7% |
| Other zones (7 labels) | 36 | 0.18 km² | 38.9% |
Zone names are the municipal designations. A canton lists each wording separately.
Building stock
The building register lists 1’680 buildings with 1’381 dwellings here; 696 of them are single-family houses.
- Buildings
- 1’680
- Dwellings
- 1’381
- Single-family houses
- 696
- Building volume
- 2.3 million m³
Buildings by category
Construction periods
Built parcels by construction period of their newest building
Maps and geodata for Niederhelfenschwil
geopool works as a GIS and geoportal for Niederhelfenschwil. Its parcel map shows the parcels of the official cadastral survey with their area, their zone from the municipal zoning plan and their buildings, on swisstopo maps. Building zones, the property map and the geodata of each parcel open on the geopool map. The ÖREB extract of a parcel (public-law restrictions on landownership) is in lookup.
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