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Wellness, fitness and leisure areas may count as principal usable floor area Federal Supreme Court judgment 1C_317/2025 and 1C_319/2025 of 11 August 2026 Decision at a glance In its judgment 1C_317/2025 and 1C_319/2025 of 11 August 2026, the Swiss Federal Supreme Court clarified a key issue in Swiss second-home law. Wellness, spa, pool, jacuzzi, sauna, fitness and games areas may qualify as principal usable floor area. This may materially restrict the expansion capacity that

In practice, it is not uncommon for a tenant (lessee) to be faced with a termination of their lease agreement that, at first glance, may appear “unlawful.” However, Swiss tenancy law provides various legal remedies for responding to a termination that does not comply with legal requirements. It is therefore important to distinguish between three different legal situations: null and void termination, invalid termination, and contestable termination. These are concepts that hav

The current partial revision of the Spatial Planning Act introduces significant changes for construction and housing in rural areas. At the heart of the reform is the explicit strengthening of agriculture: in the relevant zone, agricultural needs will in future be given an even clearer priority over other uses. This has direct implications for how immissions such as odours or noise are addressed. The new provisions affect both residential projects within the agricultural zone