CIRCUMSTANCES
8 In 1989, the Zenith Centre, an office development comprising two towers at 821 Pacific Highway, Chatswood, was owned by two companies, SAS (70%) and Pritpro Pty. Limited (30%). A decision was made to join the two towers by means of a glazed pavilion. Carver won the design competition for the work.
9 The project manager, Colin Ging & Partners Pty. Limited (Ging) confirmed Carver's appointment as architects on 19 January 1990, subject to execution of the Architect's Contract. Although this contract was not signed until September 1990, and not delivered by Carver to Ging until 22 March 1991, all terms had been agreed by February 1990 and (according to the Referee's report) the contract was probably on foot at this time. Carver's role in the design phase was to provide schematic design, detailed design and specifications for the contract. Nubra was the construction manager.
10 Site establishment for the construction commenced in July 1990. Carver provided "limited but still significant" services in the construction phase, although after 30 September 1991, Pritpro took over the role of quality control. Practical completion was achieved on about 21 November 1991. The total project expenditure was about $9.9 million.
11 The waterproofing claims were founded on water penetration of the pavilion due to a combination of factors. Carver had specified a membrane to prevent water penetration between glass panels of the pavilion structure and the hob on which they were placed. Part of that membrane had been cut away by mistake before installation of the glass; but the glass contractor, namely O'Brien Glass Industries Limited and O'Brien Glass Holdings Pty. Limited (collectively O'Brien), had gone ahead and installed the glass on the defective membrane. Carver devised remedial measures, but these were not adequately carried out by Rightway under Nubra's supervision.
12 The paving claims were founded on defects in the external paving. Ace was the paving contractor. Its contract was originally to include works associated with a concrete sub-bed; but these works were omitted before the contract was entered into, and they were performed by another contractor. After practical completion, on about 2 September 1992, a Deed of Guarantee was entered into between SAS and Ace, containing inter alia a promise by Ace to rectify defects notified to it during a ten-year period from the date of the deed.
13 On 4 July 1996, Pritpro transferred its 30% interest in the Zenith Centre to SAS, including any rights against any person engaged in the development of the centre.
14 On 13 June 1997, SAS commenced proceedings against Carver, Nubra, Rightway, Ace and other defendants including O'Brien.
15 In October 1998, SAS sold the Zenith Centre to a trust of which Perpetual Trustee Co. Limited was the trustee. This was not an arm's length sale, and SAS held a 50% interest in the trust which acquired the property. It was in fact part of a sale by SAS of six major properties, with a combined value in excess of $1 billion. The purchaser obtained a valuation of the property at $170 million, and this was the sale price. However, the parties agreed to certain deductions from the price, including $2,352,752.00 for rectification of the pavilion. No funds were expended by SAS on rectification before or after the sale, and there was no obligation under the contract of sale for SAS to undertake any rectification works.
16 SAS's claims were heard by a Referee, Mr. Geoffrey Markham, over thirteen days in April and May 2002. The claim against O'Brien was settled during the hearing, and Carver was a party to the agreement by which that claim was settled.
17 The Referee's report was filed on 3 April 2003.
18 In relation to the waterproofing claims, the Referee found Nubra and Rightway each liable for $375,442.00; and he would have found Carver also liable in respect of these claims but for a limitation clause in the Architect's Contract, which the Referee found protected Carver from these proceedings. However, the Referee also found that the terms of settlement with O'Brien meant that Carver would have been entitled to a 25% reduction in its liability in respect of the waterproofing claim. The Referee made findings as to the proportions which each should contribute: 70% and 30% as between Rightway and Nubra and, if Carver was also liable, Carver's proportion to be 20% less 25% due to the O'Brien settlement.
19 In relation to the paving claims, the Referee found there were defective works performed by Ace totalling $53,608.00, for which Nubra was also liable; but he found SAS was estopped from pursing its claims against Ace by reason of the Deed of Guarantee, because it did not give any notice requiring Ace to rectify the defects. The Referee found the appropriate proportions which Nubra and Ace should contribute if Ace were liable, to be 30% Nubra and 70% Ace.
20 The Referee dealt with a general submission that SAS should recover no damages, because it had not performed any rectification, because the defects did not result in any diminution in value of the property, and because SAS had sold the property.
21 He noted that the sale price was based on an October 1998 valuation prepared for the purchaser by JLW Advisory Services Pty. Limited (JLW). He went on to make the following comments and findings:
413. In preparing the valuation, JLW was not apprised of the defects in and around the pavilion, which I found to be surprising. It was, however, invited to inspect a schedule of proposed capital expenditure. The valuation report included the statements:
"The property is presently in a good state of repair, having regard to its present age and its utilisation as a multi-tenanted commercial office complex.