Illnau-Effretikon
Municipality in the canton of Zurich · FSO no. 296
Parcel data from Nov 2026, statistics computed on 29 Oct 2026.
Open map at the Illnau-Effretikon centerThe parcel data lists 5’623 parcels in Illnau-Effretikon, covering 32.9 km². 51.4% of them have at least one registered building. The median parcel measures 907 m².
Key figures
- Parcels
- 5’623
- 1.4% of the canton
- Total area
- 32.9 km²
- 1.9% of the canton
- Median area
- 907 m²
- Canton: 815 m²
- Switzerland: 881 m²
- Built share
- 51.4%
- Canton: 56.7%
- Switzerland: 51%
- Median year built
- 1976
- Canton: 1977
- Switzerland: 1975
About Illnau-Effretikon
Illnau-Effretikon ranks 6th of 160 municipalities in the canton of Zurich by number of parcels and holds 1.4% of the canton's parcels on 1.9% of its area. The median parcel in Illnau-Effretikon measures 907 m², about the same as the canton median of 815 m². Illnau-Effretikon is less built-up than the canton as a whole: 51.4% of its parcels have a building, against 56.7% across the canton.
The zones with the most parcels are Kantonale Landwirtschaftszone (27.8%), Wohnzone 1.7 (13.2%) and Wald (11.8%). In total, Illnau-Effretikon uses 30 zone designations.
According to the building register, Illnau-Effretikon has 4’661 buildings with 8’873 dwellings, 1.9 dwellings per building on average. Most residential buildings are single-family houses (63.9%). Non-residential buildings account for 35.1% of all buildings.
Built parcels most often have their newest building from 1961 to 1980 (31.3% of them), and 18.9% have one from 2001 or later. The median year built, 1976, is close to that of the canton as a whole (1977).
Built and unbuilt parcels
Built: 2’888 (51.4%)
Unbuilt: 2’735 (48.6%)
Parcels by zone
| Zone | Parcels | Area | Built |
|---|---|---|---|
| Kantonale Landwirtschaftszone | 1’565 | 16.95 km² | 21.3% |
| Wohnzone 1.7 | 744 | 0.52 km² | 86.6% |
| Wald | 663 | 11.50 km² | 5.0% |
| Kernzone II | 524 | 0.33 km² | 84.0% |
| Kernzone I | 399 | 0.27 km² | 73.4% |
| Wohnzone 1.3 | 382 | 0.27 km² | 84.6% |
| Wohnzone 2.2 | 243 | 0.26 km² | 74.1% |
| Wohnzone 2.6 | 223 | 0.36 km² | 77.6% |
| Wohnzone 3.0 | 85 | 0.08 km² | 77.6% |
| Wohnzone G 3.2 | 81 | 0.08 km² | 80.2% |
| Zentrumszone 4.0 | 78 | 0.11 km² | 70.5% |
| Freihaltezone | 76 | 0.28 km² | 13.2% |
| Other zones (18 labels) | 560 | 1.91 km² | 48.6% |
Zone names are the municipal designations. A canton lists each wording separately.
Building stock
The building register lists 4’661 buildings with 8’873 dwellings here; 1’776 of them are single-family houses.
- Buildings
- 4’661
- Dwellings
- 8’873
- Single-family houses
- 1’776
- Building volume
- 7.3 million m³
Buildings by category
Construction periods
Built parcels by construction period of their newest building
Maps and geodata for Illnau-Effretikon
geopool works as a GIS and geoportal for Illnau-Effretikon. 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.