Nelson v Walker

The case of *Nelson v. Walker* involved an appeal to the High Court of Australia from the Supreme Court of Victoria. The dispute concerned the obstruction of rainwater flow between two adjoining allotments of land, owned by the appellant (Mary Nelson) and the respondent (George James Walker). The respondent sought an injunction to compel the appellant to remove a dam she had erected on her land, which he claimed wrongfully obstructed the natural flow of surface water from his land onto hers, causing accumulation and damage.

The central legal issue before the High Court was whether the owner of lower-lying land was legally bound to accept the natural flow of surface rainwater from an adjoining higher-lying property, particularly when the land's surface had been altered by human intervention. This question involved considering whether a principle akin to a "natural servitude" from Roman civil law, as previously interpreted in Victorian cases, formed part of the common law of England and Australia, and if so, its applicability to altered surfaces and urban land. A secondary issue concerned whether a grant of such a right could be implied from the circumstances of the land's severance and transfer.

The High Court, in a majority decision, held that no such implied grant of a right to the continuance of the flow of surface water could be inferred from the conveyance of the land. The Court considered the principle that an owner of land is bound to receive rainwater naturally flowing from higher land. However, a majority of the judges, including Griffith C.J. and O'Connor J., expressed doubt as to whether this principle was part of the common law, and if it were, they stated it applied only to country lands, not town lands. They also indicated that the principle did not apply when the land's surface had been artificially altered. Isaacs and Higgins JJ. dissented on various grounds.

Ultimately, the High Court reversed the decision of the Supreme Court. It was held that the respondent was not entitled to a mandatory order directing the appellant to remove the dam. The Court found that no grant of a right to allow water to flow through the appellant's land could be implied, and that the appellant was not bound to accept the flow of surface water from the respondent's land.