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Troinex

Municipality in the canton of Geneva · FSO no. 6641

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

Open map at the Troinex center

The parcel data lists 999 parcels in Troinex, covering 3.4 km². 65.8% of them have at least one registered building. The median parcel measures 916 m².

Key figures

Parcels
999
1.4% of the canton
Total area
3.4 km²

1.2% of the canton

Median area
916 m²

Canton: 895 m²

Switzerland: 870 m²

Built share
65.8%

Canton: 57.6%

Switzerland: 52%

Median year built
1989

Canton: 1983

Switzerland: 1976

About Troinex

Troinex ranks 29th of 45 municipalities in the canton of Geneva by number of parcels and holds 1.4% of the canton's parcels on 1.2% of its area. The median parcel in Troinex measures 916 m², about the same as the canton median of 895 m². Troinex is more built-up than the canton as a whole: 65.8% of its parcels have a building, against 57.6% across the canton.

The zones with the most parcels are Zone de développement 5 (57.8%), Zone agricole (31.6%) and Zone de développement 4B protégée (5.9%). In total, Troinex uses 6 zone designations.

According to the building register, Troinex has 1’304 buildings with 1’414 dwellings, 1.1 dwellings per building on average. Most residential buildings are single-family houses (79.1%). Non-residential buildings account for 46.5% of all buildings.

Built parcels most often have their newest building from 1981 to 2000 (27.5% of them), and 36.8% have one from 2001 or later. The median year built, 1989, is more recent than in the canton as a whole (1983).

Built and unbuilt parcels

Built: 657 (65.8%)Unbuilt: 342 (34.2%)

Parcels by zone

Parcels by zone, the 6 largest zones first
ZoneParcels
Zone de développement 55770.56 km²84.4%
Zone agricole3162.70 km²33.2%
Zone de développement 4B protégée590.07 km²76.3%
Zone de développement 3250.06 km²68.0%
Zone des bois et forêts160.02 km²6.3%
Zone sportive60.01 km²33.3%

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

Building stock

The building register lists 1’304 buildings with 1’414 dwellings here; 541 of them are single-family houses.

Buildings
1’304
Dwellings
1’414
Single-family houses
541
Building volume
1.7 million m³

Buildings by category

  • Residential684
  • Mixed use13
  • Non-residential607
  • Other0

Construction periods

Built parcels by construction period of their newest building
  • Before 192052
  • 1920-194532
  • 1946-196019
  • 1961-1980125
  • 1981-2000181
  • 2001-201056
  • 2011-2020105
  • 2021 and later81
  • Unknown year6

Maps and geodata for Troinex

geopool works as a GIS and geoportal for Troinex. 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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