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Gossau (SG)

Municipality in the canton of St. Gallen · FSO no. 3443

Parcel data from Jul 2025, statistics computed on 26 Sept 2026.

Open map at the Gossau (SG) center

The parcel data lists 4’448 parcels in Gossau (SG), covering 27.5 km². 65.1% of them have at least one registered building. The median parcel measures 1’035 m².

Key figures

Parcels
4’448
2.3% of the canton
Total area
27.5 km²

1.4% of the canton

Median area
1’035 m²

Canton: 938 m²

Switzerland: 870 m²

Built share
65.1%

Canton: 66.6%

Switzerland: 52%

Median year built
1980

Canton: 1977

Switzerland: 1976

About Gossau (SG)

Gossau (SG) is a municipality in the canton of St. Gallen and holds 2.3% of the canton's parcels in the data, on 1.4% of their area. The median parcel in Gossau (SG) measures 1’035 m², about the same as the canton median of 938 m². Gossau (SG) is about as built-up as the canton as a whole: 65.1% of its parcels have a building, against 66.6% across the canton.

The zones with the most parcels are BauG Wohnzone WE (20.1%), BauG Landwirtschaftszone (15.8%) and BauG Wohn-Gewerbezone WG3 (13.2%). In total, Gossau (SG) uses 26 zone designations.

According to the building register, Gossau (SG) has 4’825 buildings with 9’233 dwellings, 1.9 dwellings per building on average. Residential buildings mix single-family houses and buildings with several dwellings: single-family houses make up 56.4% of them. Non-residential buildings account for 33.8% of all buildings.

Built parcels most often have their newest building from 1981 to 2000 (27.6% of them), and 19.5% have one from 2001 or later. The median year built, 1980, is close to that of the canton as a whole (1977).

Built and unbuilt parcels

Built: 2’895 (65.1%)Unbuilt: 1’553 (34.9%)

Parcels by zone

Parcels by zone, the 12 largest zones first
ZoneParcels
BauG_Wohnzone WE8940.72 km²92.2%
BauG_Landwirtschaftszone70115.39 km²45.5%
BauG_Wohn-Gewerbezone WG35860.70 km²91.6%
BauG_Wohnzone W24480.35 km²94.4%
Hinweis.Wald3564.48 km²5.3%
Hinweis.Verkehrsflaeche iB3100.67 km²4.2%
Hinweis.Verkehrsflaeche aB1730.72 km²1.7%
BauG_Kernzone K31500.14 km²91.3%
BauG_Wohnzone W31400.25 km²92.1%
BauG_Gewerbe-Industriezone GI A1220.65 km²81.1%
BauG_übriges Gemeindegebiet allg940.61 km²68.1%
BauG_Dorfkernzone DK2910.09 km²81.3%
Other zones (14 labels)3832.74 km²66.3%

Zone names are the municipal designations. A canton lists each wording separately.

Building stock

The building register lists 4’825 buildings with 9’233 dwellings here; 1’485 of them are single-family houses.

Buildings
4’825
Dwellings
9’233
Single-family houses
1’485
Building volume
12.5 million m³

Buildings by category

  • Residential2’635
  • Mixed use166
  • Non-residential1’631
  • Other393

Construction periods

Built parcels by construction period of their newest building
  • Before 1920513
  • 1920-194556
  • 1946-1960256
  • 1961-1980651
  • 1981-2000798
  • 2001-2010287
  • 2011-2020204
  • 2021 and later73
  • Unknown year57

Maps and geodata for Gossau (SG)

geopool works as a GIS and geoportal for Gossau (SG). 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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