A father gave his son land to build a house on, signing a memorandum. The son spent £14,000 building a residence with the father's approval. The Lord Chancellor held the son was entitled to the fee simple, not merely a life estate, establishing proprietary estoppel principles.
Facts
The testator, Llewelyn W. Dillwyn, by his will dated 21 June 1847, devised his real estates in Glamorgan and Caermarthen to trustees, ultimately for his wife for life, with remainder to the Plaintiff (his second son) for life, with remainder to the Plaintiff’s sons.
In 1853, wishing that the Plaintiff should reside near him, the testator offered the Plaintiff a farm called Hendrefoilan so that the Plaintiff might build a dwelling-house upon it. A memorandum was signed by the testator and his eldest son on 10 February 1853 stating:
Hendrefoilan, together with my other freehold estates, are left in my will to my dearly beloved wife, but it is her wish, and I hereby join her in presenting the same to our son Lewis Llewelyn Dillwyn, for the purpose of furnishing himself with a dwelling-house.
The Plaintiff took possession, purchased the tenant’s growing crops and manure, and built a residence at a cost of £14,000, including laying out and planting the grounds. This was done with the testator’s knowledge and approbation. No conveyance of the legal estate was executed. The testator died in August 1855 without altering his will.
The Master of the Rolls decreed that the Plaintiff was entitled to an equitable life interest only, and ordered conveyance accordingly. The Plaintiff appealed, contending he was entitled to the fee simple.
Issues
The central issue was what estate the Plaintiff had acquired in the Hendrefoilan land: whether his expenditure with the testator’s approbation, following the memorandum of gift, entitled him to a conveyance of the fee simple, or only of a life estate as determined by the Master of the Rolls.
Arguments
For the Appellant (Plaintiff), Mr Selwyn and Mr Hobhouse contended that the intention must have been to give the whole fee simple.
For the Respondent, Mr Lloyd and Mr Surrage contended that the bill ought to have been dismissed, as equity would not aid an incomplete gift, and that, at most, the memorandum could only confer an equitable estate for life.
Judgment
The Lord Chancellor, Lord Westbury, varied the decree of the Master of the Rolls and declared the Plaintiff entitled to a conveyance of the fee simple.
His Lordship acknowledged the established rule that a voluntary agreement will not be completed or assisted by a Court of Equity in cases of mere gift; a donee cannot claim more than he has received if anything is wanting to complete title. However, subsequent acts of the donor may give the donee a right or ground of claim not acquired from the original gift. He illustrated this with the example of a donor putting the donee into possession of land with the words that he gives it for the donee to build a house upon, where the donee then expends a large sum of money on building with the donor’s knowledge. The Lord Chancellor analogised this to the doctrine of part performance of verbal agreements, citing Foxcroft v Lester (2 Vern. 456).
As to the extent of the estate, the Lord Chancellor disagreed with the Master of the Rolls that the Plaintiff’s interest was limited to a life estate. He held that the equity of the donee and the estate claimable by virtue of it depend on the transaction – on the acts done – and not on the language of the memorandum, except as showing the purpose and intent of the gift. The estate was given as the site of a dwelling-house to be erected by the son, and the ownership of the house and of the estate must be considered co-extensive and co-equal. No one builds a house for his life only, and it would be absurd to suppose the house, on the son’s death, should become the father’s property.
The subsequent expenditure by the son with the father’s approbation supplied a valuable consideration originally wanting. The memorandum was thereafter to be regarded as an agreement for the soil extending to the fee simple, and in any event, on the construction of the memorandum itself, the plain intention was to vest absolute ownership in the son. The Plaintiff was therefore entitled to a conveyance of all estate and interest in Hendrefoilan under the testator’s will.
Implications
The decision illustrates the principle that although equity will not perfect an imperfect gift, where a donor induces the donee to act to his detriment in reliance on a promise or gift (here, by expending £14,000 building a residence on land given for that purpose with the donor’s knowledge and approbation), equity will intervene to compel the donor (or those claiming through him) to perfect the gift. The detrimental expenditure supplies the valuable consideration that was originally absent.
The case is significant as a foundational authority in the development of what is now known as proprietary estoppel. It demonstrates that the extent of the equitable interest acquired is measured by the nature of the transaction and the purpose of the expenditure, not rigidly by the wording of any informal memorandum. Where land is given for the construction of a permanent dwelling, the estate conveyed in equity is the fee simple, since the ownership of the house and the land must be co-extensive.
The decision matters to beneficiaries of informal gifts of land, to donors who acquiesce in detrimental expenditure, and to successors in title under a donor’s will, who may find themselves bound to perfect dispositions not effected during the donor’s lifetime. The case is closely tied to its particular facts – an express invitation to build, substantial expenditure, and the donor’s knowledge and approbation – and should not be read as establishing a broader rule that any reliance on a promise perfects an imperfect gift.
Verdict: Appeal allowed. The decree of the Master of the Rolls was varied. The Plaintiff was declared entitled, by virtue of the original gift and the subsequent expenditure with the testator’s approbation, to a conveyance of the fee simple in Hendrefoilan from the trustees and other parties interested under the testator’s will.
Source: Dillwyn v Llewelyn (1862) 4 De G F & J 517
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To cite this resource, please use the following reference:
National Case Law Archive, 'Dillwyn v Llewelyn (1862) 4 De G F & J 517' (LawCases.net, April 2026) <https://www.lawcases.net/cases/dillwyn-v-llewelyn-1862-4-de-g-f-j-517/> accessed 24 April 2026

