The only meaningful criticisms of the current legal position in trusts of the family home lie in the failure of the judges to take non-monetary contributions into account when determining the availability or nature of an interest. These concerns are increasingly being met by the intervention and growth of estoppel claims, which bring a welcome flexibility to the law, albeit at the expense of clarity.' Critically analyse the role of proprietary estoppel in the acquisition of an interest by the non-legal owner of the family home in the light of the above statement