When assessing compensation under s 56(1)(a) of the Land Acquisition (Just Terms Compensation) Act 1991, the court must disregard the decrease in value caused by the proposal, which means potentialities that would exist but for the proposal are to be valued as still available — not as 'lost opportunities' giving rise to separate compensation. However, what conditions would have existed but for the proposal is a question of fact requiring specific findings, and the court cannot simply assume as a matter of law that the land is in a developable condition. The court may assume that area improvements (such as drainage works) would have occurred to the extent they would have but for the proposal, following Woollams v The Minister.
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