Goldmann, Foley and Collester. The opinion of the court was delivered by Collester, J.A.D.
Defendant Oakwood Park Homes Corp. (Oakwood) appeals from a judgment of $475 entered in favor of plaintiffs Julia Callano and Frank Callano in the Monmouth County District Court.
The case was tried below on an agreed stipulation of facts. Oakwood, engaged in the construction of a housing development, in December 1961 contracted to sell a lot with a house to be erected thereon to Bruce Pendergast, who resided in Waltham, Massachusetts. In May 1962, prior to completion of the house, the Callanos, who operated a plant nursery, delivered and planted shrubbery pursuant to a contract with Pendergast. A representative of Oakwood had knowledge of the planting.
Pendergast never paid the Callanos the invoice price of $497.95. A short time after the shrubbery was planted Pendergast died. Thereafter, on July 10, 1962 Oakwood and Pendergast's estate cancelled the contract of sale. Oakwood had no knowledge of Pendergast's failure to pay the Callanos.
On July 16, 1962 Oakwood sold the Pendergast property, including the shrubbery located thereon, to Richard and Joan Grantges for an undisclosed amount.
The single issue is whether Oakwood is obligated to pay plaintiffs for the reasonable value of the shrubbery on the theory of quasi -contractual liability. Plaintiffs contend that defendant was unjustly enriched when the Pendergast contract to purchase the property was cancelled and that an agreement to pay for the shrubbery is implied in law. Defendant argues that the facts of the case do not support a recovery by plaintiffs on the theory of quasi -contract.
Contracts implied by law, more properly described as quasi or constructive contracts, are a class of obligations which are imposed or created by law without regard to the assent of the party bound, on the ground that they are dictated by reason and justice. They rest solely on a legal fiction and are not contract obligations at all in the true sense, for there is no agreement; but they are clothed with the semblance of contract for the purpose of the remedy, and the obligation arises not from consent, as in the case of true contracts, but from the law or natural equity. Courts employ the fiction of quasi or constructive contract with caution. 17 C.J.S. Contracts § 6, pp. 566-570 (1963).
In cases based on quasi -contract liability, the intention of the parties is entirely disregarded, while in cases of express contracts and contracts implied in fact the intention is of the essence of the transaction. In the case of actual contracts the agreement defines the duty, while in the case of quasi -contracts the duty defines the contract. Where a case shows that it is the duty of the defendant to pay, the law imparts to him a promise to fulfill that obligation. The duty which thus forms the foundation of a quasi -contractual obligation is frequently based on the doctrine of unjust enrichment. It rests on the equitable principle that a person shall not be allowed to enrich himself unjustly at the expense of another, and on the principle of whatsoever it is certain a man ought to do, that the law supposes him to have promised
to do. St. Paul Fire, etc., Co. v. Indemnity Ins. Co. of No. America, 32 N.J. 17, 22 (1960).
The key words are enrich and unjustly. To recover on the theory of quasi -contract the plaintiffs must prove that defendant was enriched, viz., received a benefit, and that retention of the benefit without payment therefor would be unjust.
It is conceded by the parties that the value of the property, following the termination of the Pendergast contract, was enhanced by the reasonable value of the shrubbery at the stipulated sum of $475. However, we are not persuaded that the retention of such benefit by defendant ...