In the Republic of Ireland there are currently no operative supervised injection facilities, or safe consumption spaces (SCS), almost 6 years after initial government approval of the Misuse of Drugs (Amendment) Bill 2015 and 4 years after the official enactment of the Misuse of Drugs (Supervised Injection Facilities) Act 2017. A pilot scheme, consisting of a single facility to be managed by Merchant’s Quay Ireland, now faces potentially significant delays and setbacks as its planning permission was deemed invalid following judicial review proceedings in the High Court. This article will detail the limited repercussions of this decision for similar prospective facilities and argue that the potential introduction of mobile facilities is within the scope of the 2017 Act.