Comerford and Ors v RTA of NSW

The High Court of Australia considered an appeal by the Comerfords against the Roads and Traffic Authority of New South Wales (RTA). The dispute concerned the RTA's acquisition of land owned by the Comerfords for the purpose of constructing a new road. The Comerfords sought compensation for the compulsory acquisition of their property.

The central legal issue before the High Court was whether the compensation awarded to the Comerfords under the *Land Acquisition (Just Terms Compensation) Act 1991* (NSW) adequately reflected the "market value" of their land, particularly in light of the potential for future development that had been frustrated by the RTA's acquisition. Specifically, the court had to determine how to assess compensation when the highest and best use of the land was for a purpose that could not be realised due to the very acquisition for which compensation was being sought.

The High Court, in dismissing the appeal, affirmed the principles of compensation under the Act. Their Honours held that the market value of land for the purposes of compensation is to be assessed at the date of acquisition, and that this value should reflect what a willing but not anxious purchaser would pay for the land, having regard to its then-existing characteristics and potential uses. Crucially, the court found that the potential for development that was rendered impossible by the compulsory acquisition itself could not be taken into account in determining the market value. The reasoning was that the hypothetical purchaser would be aware of the proposed public work and would not pay a premium for a development that could not proceed. The court applied established principles of valuation in compulsory acquisition cases, emphasizing that compensation is for the loss of the land as it is, not for the loss of a speculative future use that is precluded by the acquisition.