Could a Declaration help me?

Yes. A declaration is a judgment by the Administrative Court which clarifies the respective rights and obligations of the parties to the proceedings, without actually making any order. Unlike the remedies of quashing, prohibiting and mandatory order the court is not telling the parties to do anything in a declaratory judgment. For example, if the court declared that a proposed rule by a local authority was unlawful, a declaration would resolve the legal position of the parties in the proceedings. Subsequently, if the authority were to proceed ignoring the declaration, the applicant who obtained the declaration would not have to comply with the unlawful rule and the quashing, prohibiting and mandatory orders would be available.