The Supreme Court (TS) has partially upheld the appeal of the Valencian Government against RD 1312/2024, which regulates the procedure for the Single rental registry and creates the Single digital window for rentals to collect and exchange data on short-term rentals (such as tourist rentals).

The key point was whether the State had "competence title" competence title registration management arrangement of records essential registration number to be able to advertise the rental on online platforms online platforms The TS also does not accept the argument of

basic equality basic equality minimum conditions minimum conditions , but rather regulates in great detail a national registry designed to provide information to the Administrations. And also rules out that it is a simple basic measure or economic coordination (Const art. 149.1.13), as it overlaps with existing regional registries with comprehensive regulation. It does not even justify it as a state statistic (Const art. 149.1.31), because the registry procedure is not directly related to that purpose.

However, the Supreme Court does admit that the State can regulate the single window digitally, the coordination between windows, and the data transmission obligations of online platforms, including statistical purposes, based on Const arts. 149.1.13 and 149.1.31.