PROPRIETARY ESTOPPEL
45 The real debate on the hearing of the appeal was not directed to the correctness of the Tribunal's decision. Counsel for Mr and Mrs Tsourounakis, quite properly, made no concerted effort to support the decision of the Tribunal. The real debate concerned the extent to which it would have been open to the Tribunal to conclude that the value of the interest of Mr and Mrs Tsourounakis in the Property should be treated as diminished by reason of the contribution made by Michael and Mary to the renovation and improvement of the Property. In essence, the question is whether Mr and Mrs Tsourounakis are free to dispose of the Property and to retain the whole of the proceeds of sale for their own benefit or whether, by reason of their conduct, their freedom to deal with the Property as their own has been severely constrained.
46 In essence, Mr and Mrs Tsourounakis contend that Michael has acquired an interest in the Property by the operation of the doctrine of proprietary estoppel, which finds its origin in the 19th Century (see Dillwyn v Llewelyn (1862) 45 ER 1285 and Ramsden v Dyson (1866) LR 1 E&IA 129). The attraction of that doctrine would require the establishment of the following matters (see Dinyarrak Investments Pty Ltd v Amoco Australia Ltd (1982) 45 ALR 214):
(a) an expectation or belief by Michael, created and encouraged by Mr Tsourounakis, that Mr and Mrs Tsourounakis will give the Property to him on the death of the survivor of them and will, in the meantime, permit him and his family to live there free of interest on the basis that he will bear all outgoings in respect of the Property and is otherwise free to do with the Property what he likes;
(b) knowledge by Mr and Mrs Tsourounakis of Michael's expectation or belief;
(c) expenditure of time, energy and money by Michael in reliance upon that expectation or belief;
(d) knowledge by Mr and Mrs Tsourounakis of Michael's expenditure of time, energy and money, coupled with a failure to assert any title to the Property, such that it would be fraudulent for them to rely on their legal ownership to defeat the expectation and belief encouraged by their conduct or the lack of conduct on their part.
47 Mr and Mrs Tsourounakis contend that the evidence supports a finding that it would be unconscionable to treat them as having any remaining beneficial interest in the Property. They say that Michael and Mary have contributed time, effort and money in renovating and improving the Property and treating it as their family home in reliance upon the assurances given by Mr and Mrs Tsourounakis that they should treat the Property as their own and that it would be given to Michael absolutely upon the death of the survivor of Mr and Mrs Tsourounakis.
48 Accordingly, Mr and Mrs Tsourounakis say, it would be unconscionable for them to assert their legal ownership of the Property to dispossess Michael and his family and that they would be restrained by a court of equity from doing so. Alternatively, Mr and Mrs Tsourounakis say that, even if they should not be treated as bare trustees of the Property, a court of equity would intervene to restrain them from dispossessing Michael and his family and selling the property unless they provided appropriate compensation to him for the expenditure that he has made in improving the Property. It may be that the evidence is capable of supporting such a conclusion. It may be that that is what the Tribunal had in mind in the conclusion that it reached. However, no findings were made by the Tribunal that would enable such a conclusion to be drawn.
49 The Commission contends that the evidence would not support such findings. While the evidence leaves something to be desired in terms of a suit in equity between Michael on the one hand and his parents on the other, there was material before the Tribunal that is capable of supporting a finding that Michael and Mary expended considerable time, energy and money in reliance upon the statements made by Mr Tsourounakis in 1992 that Michael could treat the Property as his own.
50 Thus, Michael said that he would not have spent the time and money that he did renovating and living in the Property if he did not consider it his own house. He said that it was incredible to suggest that he would have done such a thing if he did not consider the Property to be his. In all respects, he considered the Property to be his own and has acted accordingly for a 13 year period. He always understood that, should the Property be sold, the entire profit from the sale would be his to dispose of as he wished. Mary said that she and Michael spent a large amount of time, energy and money repairing and renovating the Property and that everything was done on the basis that the Property was theirs.
51 The Commission contended that there has been no attempt by Mr and Mrs Tsourounakis to resile from the assurances that they gave in 1991 and thereafter and that, accordingly, Michael has no cause of action that would result in his being recognised as having any equitable claim or interest in respect of the Property. That contention is somewhat facile. The question is not whether Mr and Mrs Tsourounakis are threatening to act in an unconscionable manner. The question is whether, if they did, Michael would be entitled in equity to restrain them from doing so. If he would, the value of the Property to Mr and Mrs Tsourounakis must be diminished to the extent that they would be required to compensate Michael as a term of avoiding any restraint by a court of equity. If a court of equity would treat Michael as the beneficial owner of the Property, the value of the interest of Mr and Mrs Tsourounakis must be regarded as nil.
52 The object of the remedy that might be ordered by a court of equity in a case of proprietary estoppel is not necessarily to make good the belief and expectation encouraged by the conduct of the owner, but to recompense the claimant for the expenditure or other detriment suffered as a consequence of reliance on the belief and expectation so encouraged. In many cases where the requirements summarised above are satisfied, it will be possible for the owner of property to fulfil the equitable obligation owed only by conveyance or transfer of the interest, the expectation of which was encouraged by the owner's conduct. However, in other cases, it will be appropriate for lesser relief to be awarded. For example, where the expenditure or detriment is slight in comparison to the value of the property in question, it would be inappropriate to penalise the owner by depriving the owner of full ownership of the property.
53 The task of the Tribunal on reconsideration of the matter according to law would be to examine the extent to which a court of equity would require Mr and Mrs Tsourounakis to compensate Michael as a term of being permitted to dispossess him and his family and to sell the Property. That is to say, it would be necessary to enquire whether the assurances that were given by Mr Tsourounakis in 1992 and the conduct of Mr and Mrs Tsourounakis since that time have given rise to an estoppel against their assertion of full beneficial ownership in the Property. At one end of the spectrum, a court of equity may impose a constructive trust, if that is the only way in which equity can be done as between Mr and Mrs Tsourounakis on the one hand and Michael on the other. However, a court must first decide whether there is an appropriate equitable remedy that falls short of the imposition of a trust: see Giumelli v Giumelli (1999) 196 CLR 101 at [10].
54 It is clear that there is no legally binding promise involved in the arrangements between Mr and Mrs Tsourounakis on the one hand and Michael on the other. If there were, resort could be had to the law of contract in order to enforce the promise. The function of equity is to supplement the law, not to replace it. What creates the equity in such a situation as this is not a promise or assurance of itself but the expectation that any such promise or assurance created and the inequity that would result from the legal owner resiling from that promise or assurance. The equitable principle, of course, would have no application where the transaction remained wholly executory. It is not the existence of an unperformed promise or assurance that invites the intervention of equity but the conduct of a claimant in acting upon the expectation to which the promise or assurance gives rise: Giumelli v Giumelli (supra) at [35].
55 Cases of proprietary estoppel involve a situation where departure from an assumed state of affairs would be contrary to the requirements of conscience. Whether departure is to be permitted, and the extent to which it is to be permitted depends upon all of the circumstances of the case. In some cases a court may require the party estopped to make good the assumption: see Commonwealth v Verwayen (1990) 170 CLR 304. Alternatively, the court may, in an appropriate case, impose terms upon departure from the assumption, determining that some lesser relief is appropriate. The court may require that a sum of money be paid to compensate a claimant as a consequence of the departure from the assumption.
56 Those questions would need to be investigated by the Tribunal on the evidence before it. Issues of some complexity could arise in that regard. For example, consideration may need to be given to the following matters:
- the value of the Property at the time at which expenditure was incurred and the relationship between the amount of the expenditure and any increase in the value of the Property as a consequence of the expenditure;
- the extent to which Michael and Mary have lost the use of funds that were expended in carrying out renovations of or improvements to the Property;
- the value to Mary and Michael of their occupation of the Property on the basis that they bear rates and other outgoings;
- whether any compensation for occupation of the Property free of rent should be made, having regard to the extent of the expenditure on improvements, on maintenance of the Property, and on outgoings; and if so, what compensation;
- the extent to which dispossession of Michael and his family would be unconscionable having regard to any emotional investment that they have put into the Property in reliance upon the assurances of Mr and Mrs Tsourounakis.
There may also be other factors that need to be taken into account.
57 In circumstances where Michael and his family have treated the Property as their home for more than 13 years and have incurred expenditure that has increased its value to a very significant degree, it may be that the only appropriate order is to treat Michael as having an entitlement to remain in possession of the Property for the lifetime of the survivor of his parents and to be given the property by testamentary devise by the survivor. Such a conclusion may mean that the value of the interest of Mr and Mrs Tsourounakis in the Property would be very close to nil. On the other hand, it may be significant that, in his letter to the Commission of 15 November 2002, Michael asserted that his parents still had a net equity in the Property of $200,000. The appropriate diminution in the value of the interest of Mr and Mrs Tsourounakis would be a matter for the Tribunal.