The Court allowed the appeal and held that proprietary estoppel can bind a promisor who lacked ownership at the time of the promise if the promisor later acquires a sufficient interest in the property.
The majority upheld findings that the appellant reasonably relied to his detriment on his sister’s promise regarding her eventual one-third interest in the family home.
The Court ordered relief tailored to the equity by permitting purchase of the sister’s one-third share at fair market value as of when the appellant would reasonably have expected to buy it.
