Zumikon is introducing new planning legislation at the turn of the year 2026–2027. The municipal assembly had set 10 June 2025 as the date for the partial revision of the building and zoning regulations, but the cantonal building authority only partially approved it on 1 April 2026. It is precisely this split that now allows the uncontested remainder to come into force.
From 1 January 2027, the harmonised building definitions and measurement methods in accordance with the IVHB, as well as further amendments adopted as part of the partial revision, will apply in the municipality. The provisions of Article 29(3) and (4), which were not approved at cantonal level and are to be deleted, are not part of this initial implementation.
Legal dispute separates regulatory framework from rezoning
The plot with cadastral number 4610 in Huebrüti remains particularly contentious. Whilst the municipal assembly had approved its rezoning, the Building Department did not. An appeal against this decision is pending before the Zurich Building Appeals Court. At the municipality’s request, the suspensive effect was limited to this specific point. Consequently, the remainder of the revision can come into force, whilst the rezoning remains the subject of separate proceedings.
For property owners, planners and developers, this is more than just a formal clarification. With the cut-off date of 1 January 2027, it is now clear according to which criteria areas and dimensions will be assessed in future. Particularly in the case of project planning, preliminary assessments and pending building proposals, the fixed transition date provides greater legal certainty than a phased or further delayed entry into force.
What changes for building applications
The Building Regulations of 6 March 2018 remain applicable, albeit in the version amended by the partial revision. The substantive change therefore does not constitute a complete overhaul, but rather a targeted update of the municipal regulations. Crucially, in practical terms, the ongoing dispute over the Huebrüti will no longer hold up the remaining building rights.
This leaves only one politically and spatially sensitive issue unresolved. Should the legal proceedings regarding the rezoning of plot no. 4610 later reach a different outcome, this point would be addressed separately. The timetable is now in place for all other changes.
