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 center

The 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

Parcels by zone, the 12 largest zones first
ZoneParcelsAreaBuilt
BauG_Landwirtschaftszone52212.18 km²41.0%
BauG_Wohnzone WE2950.23 km²95.6%
Hinweis.Wald2862.88 km²5.6%
BauG_Wohn-Gewerbezone WG22170.20 km²88.0%
BauG_Wohnzone W21250.09 km²91.2%
BauG_Kernzone K2930.10 km²93.5%
Hinweis.Verkehrsflaeche aB660.17 km²1.5%
Hinweis.Verkehrsflaeche iB480.07 km²0.0%
BauG_Weilerzone280.04 km²85.7%
BauG_Zone für öffentliche Bauten und Anlagen200.11 km²75.0%
BauG_übriges Gemeindegebiet allg170.05 km²58.8%
BauG_Gewerbe-Industriezone GI A150.08 km²86.7%
Other zones (7 labels)360.18 km²38.9%

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

  • Residential872
  • Mixed use29
  • Non-residential698
  • Other81

Construction periods

Built parcels by construction period of their newest building

  • Before 1920106
  • 1920-194527
  • 1946-196038
  • 1961-1980138
  • 1981-2000323
  • 2001-2010140
  • 2011-2020146
  • 2021 and later43
  • Unknown year20

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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