This action was brought against defendant Adams, as lessee, and defendants Rose and Klaff, as assignees, for rent and for damages for the alleged breach of a covenant in a written lease. The first cause of action of the complaint alleged the violation of a covenant for construction by the lessee of “a building or buildings” on the leased premises. The second cause of action was for unpaid rent in the amount of $375. A nonsuit was entered in favor of Klaff on both counts; judgment went for plaintiffs Ellis against Adams and Rose on the cause of action for unpaid rent, and for defendants on the cause of action for breach of covenant to construct. Subsequently on motion of plaintiffs the court granted a new trial on all the issues as to all of the defendants “on the grounds that the evidence is insufficient to justify the decision of the Court and that it is against the law.” Defendants Rose and Klaff have appealed from this order; defendant Adams has not appealed.
In their opening brief appellants state that they are rais *473 ing no question as to the propriety of the order as against defendant Adams nor as to its propriety insofar as it relates to the cause of action for unpaid rent. It is said “ [t]he only matter about which complaint is made is that the order for new trial should have been limited, as permitted by Code of Civil Procedure, section 657, so as to exclude any new trial on the first cause of action against appellants.”
In the summer of 1946; Adams was appointed sales agent for Kaiser-Praser Automobiles for Ventura, California. Needing a location for conducting sales he executed the lease involved in the present action for a term of five years with an option to renew for an equal period, at a monthly rental of $125. The lease contained the following provisions:
“The lessee agrees to improve said premises by the construction of a building or buildings as soon as building conditions rеasonably shall permit. It is understood that this obligation of the lessee is one of the elements of the consideration to be given by the lessee to the lessors for the execution of this lease. In connection with the construction and maintenance of any such improvements the lessee agrees to hold the lessors harmless from any liability whatsoever due to injury and/or damage to persons or property. Any building or structure constructed by the lessee shall comply strictly with the Building Code of the city of Buenaventura.
“Lessee agrees to carry adequate fire and earthquake insurance on structures erected by him on said property. Lessee also agrees to pay any increase in the City and County taxes on said property due to improvements placed or erected on said property by the lessee.
“It is understood that all buildings placed on or erected on the leased premises shall become a part of the real property and shall remain and shall inure to the benefit of the lessors at the termination of this lease. ’ ’
Parol evidence was admitted, some of it over the оbjection of appellants, in an attempt to prove an agreement on the part of Adams to construct either a brick or concrete-block building with glass front and service garage, suitable for an automobile salesroom and repair shop, and costing approximately $12,000. Shortly after the execution of the lease in July, 1946, Adams caused an architeсt to prepare plans and specifications for such a building and he filed an application with the Civilian Priorities Administration for a construction permit. The permit was finally granted in January, 1947. *474 at which time building conditions were such as to permit construction to proceed. Meanwhile Adams had placed on the leased premises a construction shed approximаtely 8' x 10' containing a telephone, desk, and other office equipment from which he conducted his business. In December, 1946, Adams sold all of his assets, including the Kaiser-Fraser franchise, to defendant Rose and assigned the lease to him. The written assignment, which was signed by Rose, stated in part: “I, Donald L. Rose, do hereby accept the foregoing assignment and do hereby agree to be bound by the terms, conditions and obligations in said lease contained and agree to save and hold W. B. Adams harmless from any further liability or obligations under the terms of said original lease.” Rose, who conducted the automobile agency as Buena Motors, Inc., or his sublessee, paid rent under the lease through September, 1947. He moved the shed off the lot, and never physically ocсupied the property or used it in his business. Prior to the execution of the assignment he had leased other premises in Ventura upon which he conducted the Kaiser-Fraser agency; and he testified that he paid the rent on the leased premises for the sole purpose of retaining it for possible future use as a used car lot.
Defendant Klaff became associated with Rose for the first time in either January or February, 1947, as a stockholder in Buena Motors. He became vice-president or secretary of the corporation. There was no evidence that Klaff became at any time a party to the assignment, or that he entered into an agreement with plaintiffs or Adams to assume the obligations of the lease other than tеstimony by Mr. Ellis that Klaff had stated to him that “somewhere in their dealings for the Kaiser-Fraser agency they assumed a lease”-; that Klaff asked Ellis to give his consent to a sublease in May, 1947; and also requested that the lease be cancelled in September, 1947. The present action was brought after the refusal of defendants in November, 1947, to comply with plaintiffs’ written demand that they construсt a building and pay the rent due.
Since the lease agreement was for a term of more than one year, its essential provisions were required by the statute of frauds (Civ. Code, § 1624(4)) to be in writing. Appellants contend that the construction clause of the lease, as written, is unenforceable due to uncertainty, and that the statute forbids its deficiencies to be supplied by parol еvidence. It does not appear from the record that the applicability of the statute of frauds was urged in the trial court. Although appel
*475
Tanta’ general denial may have been sufficient to raise the point
(Howard
v.
Adams,
The evidentiary consequences of the statute of frauds
*476
(Civ. Code, § 1624) are in many respects similar to those of the parol evidence rule (Code Civ. Proe., § 1856). Both require exclusion of extrinsic evidence which would vary, contradict, or add to the terms of the written agreement under consideration
(Craig
v.
Zelian,
The parol evidence rule is a principle of substantive law, premised upon the hypothesis that when the parties have voluntarily expressed their agreement in written form, the writing represents a complete integration of their understanding. (Wigmore on Evidence, vol. 9, § 2425, p. 76.) It is not calculated to, nor does it in practice, exert any compulsion upon the parties to put their entire understanding in writing.
(Lande
v.
Southern Cal. Freight Lines,
The statute of frauds, on the other hand, is designed to prevent fraud and perjury by requiring certain contracts tо be evidenced exclusively in writing. In order to effectuate that purpose, it demands that every material term of an agreement within its provisions be reduced to written form, whether the parties desire to do so or not. To be sufficient, the required writing must be one “which states
with reasonable certainty,
(a) each party to the contract . . . and (b) the
*477
land, goods or other subject-matter to which the contract relates, and (c)
the terms and conditions of all the promises
constituting the contract and by whom and to whom the promises are made.” (Restatement, Contracts, § 207. Emphasis added.) Unless the writing, considered alone, expresses the essential terms with sufficient certainty to constitute an enforceable contract, it fails to meet the demands of the statute.
(Breckinridge
v.
Crocker,
The distinction noted has apparently been overlooked upon occasion (see
Blahnik
v.
Small Farms Improvement Co., 181
Cal. 379 [
The lease expressly provided that the lessee’s obligation to build was one of the elements of consideration. It was clearly an essential term of the agreement, and, as such, was required by the statute of frauds to be expressed in the writing with sufficient certainty to evidence an enforceable contract. The construction clause in the lease, as written, however, is too vague and uncertain to give rise to a contractual duty. Aside from the requirement that the “building or buildings” comply with the city building code, and the implication that it (or they) be sufficiently substantial to be a valuable asset after expiration of the term, the lease is manifestly incomplete in failing to specify whether the lessee was to construct one or more buildings and is wholly silent as to the size, type, materials, location, cost, appearance, or any other details of construction. The language of the construction clause thus shows that, at the time of the execution of the lease, the parties expected to supplement it by a future agreement with respect to the improvement of the property. Although the terms of a contract need not be stated in the minutest detail, it is requisite tо enforceability that it must evidence a meeting of the minds upon the essential features of the agreement, and that the scope of the duty and limits of acceptable performance be at least sufficiently defined to provide a rational basis for the assessment of damages. (12 Am.Jur., § 64, p. 554.) Tested by these settled rules, the construction clause in the present lease upon its face is manifestly unenforceable.
(Alderson
v.
Republican-Courier Co.,
Any subsequent agreement which the parties may have reaсhed with respect to the obligation to construct, was also required to be reduced to writing. (Civ. Code, § 1698;
Boyd
v.
Big Three Ranch Co.,
Under these principles the extrinsic evidence relied upon by plaintiffs to cure the deficiencies of the construction clause was inadmissible, since its purpose and effect were to add material terms to the lease as written, and thereby prove by parol that a contract existed which could be proven solely by a writing as required by the statute of frauds.
Plaintiffs seek to justify receipt of the parol evidence upon the ground that it was merely explanatory of an ambiguity in the writing. ' Cases are cited in which the receipt of parol evidence was approved for this purpose. It is unnecessary to analyze these eases, since they do not discuss the admission of extrinsic evidence with relation to the statute of frauds and are otherwise inapplicable. The provision in the lease for construction of “a building or buildings,” clearly indicates that the number оf structures required, whether one or more, was to be left to future arrangement. There is, of course, ambiguity and uncertainty in the writing in this respect but it arises from the absence of any expressed agreement as to the very essence of the obligation to improve the property. The parol evidence was introduced to prove not only that a single building was to be erected, which was not expressed in the writing, but also, as we have pointed out, *480 that the lessee was obligated to construct either a brick or concrete block building of a certain type which would cost approximately $12,000. This was an attempt, not to resolve an ambiguity, but to supply essentials of a complete agreement which were lacking in the writing. It is clear that the receipt of parol evidence for the purpose of adding substantial terms to an otherwise unenforceable writing would be contrary to the requirements of the statute of frauds and destructive of its purpose. The case is governed by Friedman v. Bergin, supra, 22 Cal.2d 535, wherein it was held that under the statute of frauds parol evidence could not supply the unwritten details of an arrangement bеtween the parties as to the method of operation of certain race-track concessions, where the written contract merely named the concessions for which plaintiff had contracted.
The order should be reversed insofar as it grants plaintiffs a new trial as to Rose and Klaff on the first cause of action.
As to the second cause of aсtion the situation is the following: Plaintiffs had judgment against Rose and Adams for the full amount of rent demanded in the complaint, and judgment of nonsuit was rendered in favor of Klaff. Neither Adams, Rose nor Klaff made a motion for a new trial and Adams, as we say, has not appealed. As between plaintiffs and Rose the order granting a new trial as to the second cause of action is void. New triаl procedure is 'jurisdictional.
(Del Barrio
v.
Sherman,
As between plaintiffs and Klaff, plaintiffs were aggrieved by the judgment of nonsuit in favor of Klaff, and their motion for a new trial was proper. Oddly enough, Klaff does not seek a reversal of the order granting a new trial as to the second cause of action, and plaintiffs argue that the ordеr should be affirmed in this particular. Under these circumstances this portion of the order will not be disturbed. The affirmance, however, is not to be regarded as a holding that *481 the evidence in the record would be sufficient to support a judgment against Klaff for rent.
The order is final as to Adams, and since he is not before the court, no opinion is expressed as to any question of his liability upon either the first or second cause of action.
The order granting a new trial as to the first cause of action is reversed as to defendants Rose and Klaff; it is also reversed insofar as it purports to grant a new trial as between plaintiffs and Rose on the second cause of action; and it is affirmed as between plaintiffs and Klaff as to the second cause of action. Appellants are awarded costs on appeal.
Wood, J., and Vallée, J., concurred.
