Expertly building evidence: Lessons learned from White Constructions

Case note: White Constructions Pty Ltd v PBS Holdings Pty Ltd [2019] NSWSC 1166

In White Constructions, Hammerschlag J considered the issue of delay damages. White Constructions was the property developer of a site in Kiama NSW. The development involved the development and subdivision of 100 lots and required design and installation of sewer infrastructure. These works required a s 73 Certificate issued by Sydney Water before subdivision could occur. White Constructions appointed the Defendants to assist with the design and approval works needed as part of the development and resulting subdivision. A substantial part of the judgment was devoted to the preparing and designing of the sewer designs and the approval of Sydney Water, including the different types of sewage systems, Sydney Water’s preference in relation to these systems, preparation of option reports and correspondence between the Superintendent, the Defendants and Sydney Water.

The discussions between Sydney Water, the Superintendent and the Defendants took considerable time. As a result, White Constructions alleged that the delay in coming to the approved sewage design caused White Constructions to be liable to their building contractor for delay damages. In arguing the substance of the dispute, the parties tendered complex expert evidence. As a result, the Court appointed an expert to assist in interpreting and assessing the expert evidence presented.

With the expert’s assistance, Hammerschlag J criticised the experts’ approach to determining the delays attributable to the sewage works. Both experts used methods derived from the United Kingdom Society of Construction Law, the Delay and Disruption Protocol (the Protocol) in analysing the delay. The Protocol identifies six different methods of delay analysis, but Hammerschlag J held that the inclusion of a delay analysis method in the Protocol does not necessarily mean it should be used. While the Protocol methods have been endorsed in other cases, the analysis of delay must pay close attention to the actual evidence of what was happening on the ground of the project. The delay analysis must show and prove that, on the balance of probabilities, the delay:
• played a role in delaying the project;
• how it delayed the project; and
• how much it delayed the project.

This approach is in line with the common law common-sense approach to causation which the High Court referred to in March v E&MH Stramare Pty Ltd (1991) 171 CLR 506.

A lot of value in White Constructions comes from Hammerschlag J’s analysis of what evidence is needed in cases where delay is alleged in construction matters. Firstly, the Court stated that close attention must be paid to the facts of the matter, rather than the opinion of experts. This evidence should not be general in nature, but specific in that it is able to precisely identify delays in the project. This evidence should be a contemporaneous record of the project. A classic example of this kind of evidence is a site diary which records the day to day of the project, as well as specific cause and effect of each delay.
• what works were undertaken/completed;
• the instructions received from the client;
• the delays/any complaints of delays and how they have affected other activities;
• which personnel were onsite; and
• any other relevant details

The Court found that it was important that the contemporaneous record identified which activities were adversely affected by the delays. For example, if the works of one contractor were delayed and, as a result, caused delay for another contractor, the site diary should record these details. Failing to record these details means that it is harder, if not near impossible, for parties to establish that there was in fact a causal link and adverse effect.

How does White Constructions impact a project?

White Constructions shows the importance of proper project documentation. Most importantly, the site diary, or similar contemporaneous document, should be the primary record of the specific of what is happening on site and how specific events affect different contractors. Proper record keeping, while it may be administratively burdensome, allows the Court to analyse and determine the proper entitlements of the parties if the project ever comes into dispute. While other evidence can be adduced in pursuit of proving delay, it runs the risk of being generalist in nature and not enough to prove the causal link of the delays.

The lessons learned in White Constructions may also have some application in respect of other delay related mechanisms under construction contracts. For example, a comprehensive site diary would also be useful in determining any claim for an EOT claim. However, it is important to note that these types of claims are largely determined by the contract and its processes for determining what is in fact an EOT. Nevertheless, contemporaneous records of what has happened and how this has affected the project is useful in establishing a claim by a party as to their entitlements.
Another important point that comes from White Constructions is ensuring experts are given the proper lay evidence to ensure that they can properly opine on the project. While it does not displace the role of lay evidence such as site diaries, it can assist in assisting the Court in considering and making appropriate decisions on what the parties are entitled to.

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