Subject to this Part the costs of any application or other step in any proceedings shall, unless the Court otherwise orders, be paid and otherwise dealt with in accordance with the provisions of this Part or the provisions of any order relating to the general costs of the proceedings.
10 The usual rule, that costs follow the event, is set out in Part 52A rule 11.
11 As the defendants have observed, New South Wales Bar Association v Stevens [2005] NSWCA 351 Spigelman CJ at [17] (with whom Mason P and Handley JA agreed) is authority for the proposition that an order reserving the costs of an interlocutory hearing is an 'otherwise order' for the purpose of Part 52A, r 16, and that therefore the award of costs in an interlocutory hearing where costs have been reserved is in the discretion of the Court.
The further threshold issue
12 The parties are then at issue as to whether or not the proper exercise of the Court's discretion must follow a separate determination of the respective merits concerning the proper costs order in terms of each of the occasions where costs have been reserved.
13 In my view this approach is presently inappropriate. In that regard it is important to look to the principles relevant to the exercise of the Court's discretion.
The principles relevant to the exercise of the Court's discretion under Part 52A
14 I accept as of substance the proposition put by the defendants that the following principles underpin the exercise of the Court's discretion: