By a document entitled Order of Dismissal after Sustaining of Demurrer without Leave to Amend and Order Permitting Limited Amendment, the dismissal of plaintiffs’ first six causes of action was ordered. (Code Civ. Proc., § 581, subd. 3.) Amendment of the complaint as to the seventh and eighth causes of action directed against defendant Warren Company, who is not a party to this appeal, was permitted. The appeal is being taken from the judgment of dismissal in favor of defendants.
The complaint as to which the demurrers were sustained and which is before us for consideration is captioned “Amendment to First Amended Complaint.” It restates the first five causes of action of the first amended complaint and adds thereto three additional causes of action. Since the apparent intent was to supersede entirely the first amended complaint, it properly should have been captioned “Second Amended Complaint. ’ ’
Facts Alleged
Sometime prior to 1960, defendant Longridge Estates (Longridge) owned hillside property in the Santa Monica Mountains, Los Angeles County, and developed it into a tract of residential lots. Defendants D. S. Hamner (Plamner) and Donald R. Warren Company (Warren) did the general engineering and soils engineering, respectively, for the tract. In 1960, plaintiffs’ predecessor in interest purchased a lot in the tract and built a house thereon. Plaintiffs purchased the house and lot on June 15,1960.
In February 1962, a portion of the rear slope of the lot *609 failed. Plaintiffs employed defendant Warren to investigate the cause of the failure and repair it. It is alleged that Warren found inadequate drainage and improper compaction of fill on the rear slope; that Warren concealed these facts from plaintiffs; and that Warren informed plaintiffs that the slope failure was due only to excessive rainfall and landscape watering. Warren supervised the repairs.
In November 1965, the rear slope of the lot failed in a different location from the 1962 failure. The damages resulting from this second slope failure are the subject of plaintiffs’ first, third and fifth causes of action on the theories of strict liability, negligence and building code violations, respectively.
Also, in November 1965, the lot pad settled, allegedly due to the decomposition of organic matter and insufficient compaction at the time of the lot preparation. The damages resulting from the settling of the pad are made the subject of the second, fourth and sixth causes of action, on the theories of strict liability, negligence and building code violations, respectively.
Plaintiffs filed their complaint against defendants on July 1, 1966. The first six causes of action are against defendant Longridge; the third through sixth against defendant Hamner; the seventh and eighth against defendant Warren. The demurrers to the first six causes of action were sustained without leave to amend on the ground that they were barred by the three-year period of limitations of section 338, subdivision 2, Code of Civil Procedure, and as to the first and second causes of action on the additional ground that “there is no doctrine of strict liability as to the manufacture of residential lots.” Plaintiffs appeal from the judgment of dismissal entered thereafter.
Strict Liability
Plaintiffs rely on
Kriegler
v.
Eichler Homes, Inc.
(1969)
“We think, in terms of today's society, there are no meaningful distinctions between Eichler’s mass production and sale of homes and the mass production and sale of automobiles and that the pertinent overriding policy considerations are the same. Law, as an instrument of justice, has infinite capacity for growth to meet changing needs and mores. Nowhere is this better illustrated than in the recent developments in the field of products liability. The law should be based on current concepts of what is right and just and the judiciary should be alert to the never-ending need for keeping legal principles abreast of the times. Ancient distinctions that make no sense in today’s society and that tend to discredit the law should be readily rejected as they were step by step in
Greenman
[v.
Yuba Power Products, Inc.,
The Court of Appeal relied on
Schipper
v.
Levitt & Sons, Inc.,
44 N. J. 70 [
“Buyers of mass produced development homes are not on an equal footing with the builder vendors and are no more able to protect themselves in the deed than are automobile purchasers in a position to protect themselves in the bill of sale.” (Pp. 325-326.)
As noted by the New Jersey Supreme Court in Schipper and our Court of Appeal in Kriegler, “ [T]he imposition of strict liability principles on builders and developers would not make them insurers of the safety of all who thereafter came on the premises. In determining whether the house was defective, the test would be one of reasonableness rather than perfection.” (Kriegler v. Eichler Homes, Inc., 228.)
The Court of Appeal concluded its opinion in Kriegler by stating on pages 228-229: “As it cannot be disputed that Kriegler here relied on the skill of Eichler in producing a home with a heating system that was reasonably fit for its intended purpose, the trial court properly concluded that Eichler was liable to Kriegler on the basis of strict liability, and the judgment in favor of Kriegler must be affirmed on that ground alone.”
In attempting to distinguish Kriegler from the instant case, defendants correctly point out that Kriegler related to defects in equipment installed in a house manufactured by defendant therein, that it did not concern alleged defects in the soil of real property sold by defendant, and argue that the comparison of the mass production of houses and the mass production of automobiles is sound but that no such comparison is possible with respect to the underlying soil. Defendants further state that although a land developer may grade property, cut from the soil and fill depressions, he does not alter the basic characteristics of the soil and must contend with the various natural and latent conditions which may be existent in the soil and its subsurface, and that neither the builder of houses nor the manufacturer of an automobile has such considerations.
We question the soundness of the preceding assertion. It is common knowledge that with modern grading and trucking equipment, earth is moved considerable distances for filling purposes, that it is not improbable for the imported soil to *612 have entirely different characteristics from those of the native soil. It is also common knowledge that geologists and soils engineers are able to determine with a reasonable degree of certainty the stability of soil from tests of the surface and subsurface, and that if adequate and proper tests are made, it is highly improbable that any condition affecting stability will remain unknown and latent.
Defendants rely on
Beck
v.
Bel Air Properties, Inc.
(1955)
1 ‘ Should earth moving operations incident to subdividing and grading hills and slopes into building sites be grouped with escaping gas, oil drilling and dynamiting? Or, is it an activity that ordinarily can be safely carried on, if reasonable care is used?
‘1 This court is inclined to the latter view. ( i
“ [T]he creation, construction and maintenance of hillside fills is a matter of common usage. Cutting, leveling and filling are the inevitable, constant and ordinary methods pursued in the development of hillside areas.
“It follows that the instant activity is not so obviously and plainly ultrahazardous as to impose liability regardless of the care used. ’ ’
In
Conolley
v.
Bull, supra
(1968)
In closing, the court in
Conolley
v.
Bull, supra
(1968)
It is significant that in
Conolley
recovery in negligence was affirmed; its discussion of strict liability was dictum. In
Sabella v. Wisler,
*614
Defendant Longridge submits as an additional reason for refusal to extend the doctrine of strict liability of the manufacturer of chattels to the developer of real property, the historical limitations upon the responsibility of a vendor of realty. Section 1113, Civil Code, provides that certain implied warranties or covenants, and no others, result from a grant of real property, that those listed do not include warranties or covenants respecting the condition of the soil. In
Gustafson
v.
Dunman, Inc.
(1962)
We note, however, that in neither ease was the doctrine of strict liability in tort pleaded or discussed. The argument is answered by our Supreme Court in
Greenman
v.
Yuba Power Products, Inc.
(1963)
The question of the liability of a manufacturer of a lot to the ultimate occupier thereof for damages suffered by the latter as the result of latent defects in the manufacturing process appears to be one of first impression. Although factually the question could have been presented in
Beck
v.
Bel Air Properties, Inc., supra,
(1955)
The doctrine of strict liability was developed after
Beck.
(See history of its evolvement,
Greenman
v.
Yuba Power Products, Inc., supra,
(1963)
Statute of Limitations
Plaintiffs do not seek any relief in this action in connection with the 1962 slope failure. They concede an action based thereon would be barred by the three-year period of limitations. (Code Civ. Proc., § 338, subd. 2.) They allege that the causes of action that arose from the 1965 incidents were separate and distinct from those which accrued in 1962; that they could not have been anticipated prior to November 1965, by a reasonable person in the exercise of due diligence, and that since they filed their complaint on July 1, 1966, they are within the three-year period of limitations. Defendants contend that the pleadings affirmatively admit that plaintiffs had knowledge of the alleged defects in 1962; that all causes of action accrued in 1962, and that the three-year period of limitations is a bar to their action filed in 1966.
*616
As a general rule a cause of action arises when the wrongful act was committed and not at the time of the discovery; the statute commences to run even though a plaintiff is ignorant that he has a cause of action. (See 1 Witkin, Cal. Procedure (1954), Actions, pp. 614-615; extent of damages from fraud not fully
known—Rubino
v.
Utah Canning Co.,
Recently our court had before it for consideration the case of
Oakes
v.
McCarthy Co.,
We hold that the allegations of plaintiffs’ complaint bring the plaintiffs within the exception noted; that if plaintiffs can prove there were two new causes of action arising in 1965, their action is not barred by section 338, subdivision 2, Code of Civil Procedure; that if only a single cause existed, the one arising in 1962, as contended by defendants, then the action is barred. It is a question of fact for determination at trial, not on demurrer.
Defendants contend that plaintiffs had imputed knowledge from their agent, defendant Warren, that the entire lot and slope were defective in 1962. Prom the facts pleaded it would appear that Warren was an independent contractor. However, the existence of an agency is a question of fact, and one to be determined at trial.
(Brokaw
v.
Black-Foxe Military Institute,
On appeal defendant Hamner contends that the action against him is one for negligence in the performance of personal services, similar to that of attorney malpractice; that the action accrued at the date of the alleged malpractice, not when the damage was discovered
(Shelly
v.
Hansen,
In concluding our comments we emphasize that we have liberally construed the allegations of the complaint in the light most favorable to plaintiffs. In stating the facts herein, we have stated facts which have not yet been proved and may never be. Demurrer rulings “are untrustworthy source materials for fact finders.’’
(Garlock
v.
Cole,
Judgment of dismissal is reversed; the trial court is instructed to overrule the general demurrers to the first six causes of action and to grant defendants a reasonable time within which to plead to the amended complaint.
Ford, P. J., and Cobey, J., concurred.
A petition for a rehearing was denied May 26, 1969, and the petition of respondent Longridge Estates for a hearing by the Supreme Court was denied July 2, 1969.
