Abbey National Building Society v Cann [1990] UKHL 3 is an English land law case concerning the right of a person with an equitable interest in a home to remain in actual occupation, if a bank has a charge and is seeking repossession. A controversial decision, it held that "actual occupation" entails some degree of permanence, and that if someone buys a property with a mortgage, the bank's charge is to be treated as having priority over any equitable interest.