Endorsements made by the Registrar of Deeds pursuant to statutory authority (such as s 108(4) of the Postal and Telecommunications Act) are legally effective to transfer ownership of immovable property without requiring State consent or formal deed of transfer. Land granted to Government subject to specific purpose conditions (such as 'for communication purposes only' in a Deed of Grant) must be used for that purpose, and successors to that purpose (such as the telecommunications corporation and its successor companies) are entitled to the land. The Registrar of Deeds has authority to make endorsements reflecting changes in ownership where statutes so provide, and such endorsements do not require separate State consent beyond the statutory authorization. Where land is granted subject to conditions, those conditions must be respected and the President/Government cannot unilaterally reallocate such land for different purposes. For declaratory relief under s 14 of the High Court Act, the applicant must show a direct and substantial interest in the right to be determined. For a final interdict, the applicant must establish: (1) a clear right, (2) an injury actually committed or reasonably apprehended, and (3) the absence of similar protection by any other remedy.