On 11 August 2026, the Swiss Federal Supreme Court handed down a decision in cases 1C_317/2025 and 1C_319/2025, ruling for the first time that wellness and leisure facilities – including fitness rooms, saunas, indoor pools with Jacuzzis, and game rooms – qualify as main usable surfaces (MUS) under Art. 11 para. 2 of the Swiss Second Homes Act (SHA; "Lex Weber").