Joined Cases C-724/18 and C-727/18: Judgment of the Court (Grand Chamber) of 22 September 2020 (requests for a preliminary ruling from the Cour de cassation — France) — Cali Apartments SCI (C-724/18) and HX (C-727/18) v Procureur général près la cour d’appel de Paris and Ville de Paris (References for a preliminary ruling — Directive 2006/123/EC — Scope — Repeated short-term letting of furnished premises to a transient clientele which does not take up residence there — National legislation imposing a prior authorisation scheme for certain specific municipalities and making those municipalities responsible for defining the conditions for granting the authorisations provided for by that scheme — Article 4(6) — Concept of ‘authorisation scheme’ — Article 9 — Justification — Insufficient supply of affordable long-term rental housing — Proportionality — Article 10 — Requirements relating to the conditions for granting authorisations)