31 In Metricon Qld Pty Ltd v Tweed Shire Council [2008] NSWLEC 283 Sheahan J conveniently set out the legal principles to be applied in an application of this nature (at [23]-[24]). For the sake of efficiency his Honour's work is repeated here:
23 In Bongiorno Hawkins Frassetto & Associates Pty Ltd v Griffith City Council [2007] NSLWEC 205 ("Bongiorno"), Jagot J dealt with a joinder application in "shopping centre" circumstances different from those in the present case but, as usual, her Honour concisely summarised the relevant principles to be applied (at [5], [6] and [9]):
5 Under s 39A of the Land and Environment Court Act , the Court may only exercise the power to join a person as a party to these proceedings if it forms an opinion either that the person is able to raise an issue that should be considered in relation to the appeal but would not be likely to be sufficiently addressed if the person were not joined as a party or that it is in the interests of justice or the public interest that the person be joined as a party to the appeal. While s 38(2) is not similarly constrained, the types of consideration that are set out in s 39A no doubt are also relevant to the exercise of discretion to make any form of Double Bay Marina order.
6 I should also say, consistent with the observation of Lloyd J in Pro-Vision Developments Pty Limited v Ku-Ring-Gai Municipal Council [2003] NSWLEC 226, the mere fact that the Court forms an opinion within the meaning of s 39A is not sufficient. The Court retains a discretion as to whether or not an order for joinder should be made and would take into account such matters as the delay in the application, the likely strength of the issues sought to be raised and any other issue of potential prejudice in the proceedings….
9 I accept that there are concerns about a multiplicity of parties being involved in proceedings. It is not the case that s 39A or indeed s 38(2) of the Land and Environment Court Act were intended to encourage a multiplicity of parties in circumstances where the Court could be satisfied that the relevant issues would otherwise be appropriately and sufficiently ventilated in proceedings between the applicant for consent and the relevant consent authority. Accordingly, it is necessary to weigh up this consideration about multiple parties, although it seems to me that this concern is more relevant in the second step under s 39A, namely the exercise of discretion (rather than the first step, at least insofar as subs (a) is concerned, about whether the person can raise an issue that should be considered but would not be likely to be sufficiently addressed).
24 Her Honour formed the opinion envisaged by s 39A(a), and then turned her attention to discretionary considerations, which she listed (in [11]) as:
· the context in which the application is brought by Ritchies Stores to which I have already referred;
· the limited nature of the issue on which Ritchies Stores seeks to call evidence and be heard;
· the capacity through case management to ensure that there is not inappropriate duplication between Ritchies Stores' evidence and that of the Council insofar as the Council's evidence goes; and
· the fact that the application has been brought in a timely manner to enable those case management procedures to be effectively implemented.