This action presents one claim in a complex suit involving the Woodvale Condominium Project in Southfield, Michigan. John Casey Development Company (Casey), the general contractor, sought to foreclose on its mechanics’ lien. *580Continental Mortgage Investors (C.M.I.) opposed foreclosure on the ground that Casey’s lien was unenforceable for failure to comply with the residential builders’ act,1 or, in the alternative, that C.M.I. had a prior mortgage which superseded the lien. The matter was heard on cross-motions for summary judgment, and the trial court granted summary judgment for C.M.I.
The matter was appealed to this Court, where a majority held (Chief Judge Danhof dissenting) that Casey’s substantial compliance with the provisions of the residential builders’ act was sufficient to allow maintenance of an action to foreclose the lien. On the priority issue, the majority held that because engineering services were performed prior to the giving or recording of the mortgage, the lien took preference under MCL 570.9; MSA 26.289, MCL 570.1; MSA 26.281, as construed in Williams & Works, Inc v Springfíeld Corp, 81 Mich App 355, 362-363; 265 NW2d 328 (1978). Michigan Roofing & Sheet Metal, Inc v Dufty Road Properties, 90 Mich App 732; 282 NW2d 809 (1979).
C.M.I. sought leave to appeal to the Supreme Court, which ordered the application held in abeyance pending decision by that Court in the Williams & Works case. Williams & Works was recently decided by the Supreme Court, 408 Mich 732; 293 NW2d 304 (1980), and the instant case has since been remanded for reconsideration in light of that case.
Williams & Works was concerned with:
"[T]he sole question whether off-site engineering services rendered before the beginning of actual, on-site construction qualify, pursuant to § 9(3) of the Michigan mechanics’ lien law, as 'the commencement of said *581building or buildings, erection, structure or improvement’ so as to give priority to mechanics’ liens over a mortgage recorded after the provision of such services but prior to the beginning of any visible, on-site construction”. Id., 734-735, (footnotes omitted).
It thus appears that the Supreme Court’s remand affects only our holding on the priority issue, and we expressly reaffirm our prior holding on the issue of the sufficiency of Casey’s compliance with the residential builders’ act.
In Williams & Works the Supreme Court held, after extensive review of the mechanics’ lien act and prior case law, that regardless of when a lienable act was actually performed the lien does not take priority over a mortgage unless visible, on-site construction which could be said to signal the "commencement” of the building, erection, structure, or improvement has taken place. See MCL 570.9 (third); MSA 26.289 (third). The purpose of the visible commencement requirement is to place potential lenders or purchasers on constructive notice that mechanics’ liens may exist. The Supreme Court was of the opinion that this purpose would be defeated if mechanics’ liens were granted priority as of the date of lienable but off-site services such as the rendering of engineering plans.
"We also believe that our decision, in continuing to key ’commencement’ into the concept of constructive notice, is based on sound public policy. Were we to adopt appellees’ position and rule that the 'commencement’ of a building, erection, structure or improvement could be triggered by the rendering of off-site, non-visible engineering plans, mechanics’ liens could relate back to a long time before any visible signs of construe*582tion existed to inform prospective lenders inspecting the premises that liens had attached. Under such circumstances, construction financing would become exceedingly difficult.” Williams & Works, Inc, supra, 751.
One Michigan commentator has reconstructed the policy considerations behind selection of the date of visible "commencement” as the date for fixing priorities in the following manner:
"But what date? That is a critical question for outsiders, — for example, the bank which lent money on mortgage of this land prior to the completion of the building. Here our lawmakers have split. Most of them have given all contractors, laborers and materialmen liens which relate back to the time the job was begun by visible operations on the land. The rationale is found in certain policy factors. A lien having priority as of a later date would give no assurance to one who was asked to furnish labor or materials at the beginning of the job. Do we want to impose that risk upon them, or repair the 'owner’s’ credit facilities to the extent that they refuse to assume that risk? On the other hand, a lien as of an earlier date would be a wallop for anyone who had dealt with the 'owner’ on the faith of his title, as yet unencumbered but later subjected to the antedated lien. To give the lien priority as of the date when visible operations began is stiff, but we can at least say that it was possible for anyone dealing with the 'owner’ to see the operations, and so to understand what was likely to ensue, assuming knowledge of the law. It should be added that prudence requires inspection of the land in any case, by reason of the doctrine of notice from possession. So, by a process of elimination, we come to the date of visible operations. Other statutes, however, have ignored the notice point, and date the liens from the execution of the 'owner’s’ contract, without requiring the contract to be recorded. Apparently there is no way to guard one’s self against the hazard *583created by that type of statute.” Durfee, Priorities, 57 Mich L Rev 459, 476-477 (1959).2
The question that remains is just what sort of activity is sufficient to signal commencement. Although the Supreme Court declined to intimate a specific view on this point, Williams & Works, supra, 754, fn 13, guidelines were offered:
" 'Commencement’, then, as defined by early case law and commentary, required an act of such a character that it was notice to all of the existence of mechanics’ liens.” Id., 742.
"In short, visible, on-site construction, such that it is obvious from the work done on the premises that a building, erection, structure or improvement is in progress, is still required in order to signal 'commencement’.” Id., 749. (Footnote omitted.)
Resolution of the instant case depends on whether sufficient visible on-site construction had taken place prior to the mortgage so that the mechanics’ lien would take priority. If not, the mortgage would supersede the lien and the trial court would have been correct in granting summary judgment to C.M.I.
The record in the instant case reveals that C.M.I.’s mortgage was granted on May 2,1972, and recorded on May 26, 1972. Prior to this time, at *584least by March 17, 1972, labor and construction materials were furnished to the construction site. Although there appears to be a split of opinion in this country over whether such acts are sufficient to signal commencement, Anno: What constitutes '*commencement of building or improvement” for purposes of determining accrual of mechanics’ lien, 1 ALR3d 822, 835-836, Michigan case law holds that the furnishing of construction materials to the jobsite is sufficient to constitute a commencement.3 Williams & Works, Inc v Springfield Corp, 76 Mich App 541, 550; 257 NW2d 160 (1977), lv den 402 Mich 908 (1978). See Wallich Lumber Co v Golds, 375 Mich 323; 134 NW2d 722 (1965). This position has been adopted by other states as well. A unanimous California Supreme Court stated the general rule as follows:
" 'Thus the general rule is that such a lien does not attach unless and until construction has been undertaken by the doing of actual visible work on the land or the delivery of construction materials thereto.’ ” Walker v Lytton Savings & Loan Ass’n of Northern California, 2 Cal 3d 152, 156-157; 84 Cal Rptr 521; 465 P2d 497 (1970) (emphasis in original), quoted in Williams & Works, Inc v Springñeld Corp, 408 Mich 750-752.
*585We also believe that the delivery of construction materials to the jobsite satisfies the guidelines of the Supreme Court’s decision in Williams & Works. When construction materials are visible on a jobsite, it is obvious that a building, erection, structure, or improvement is in progress so that all who happen by the site have constructive notice of the existence of mechanics’ liens.
Because the delivery of construction material preceded the giving and recording of the mortgage, the liens take priority over the mortgage. The trial court’s grant of summary judgment in favor of C.M.I. is reversed, and the case remanded for further proceedings.
Reversed.
Beasley, J., concurred.MCL 338.1501 et seq.; MSA 18.86(101) et seq.
Although the purpose of selecting the date of commencement as the date for fixing priorities appears designed to give constructive notice to lenders and purchasers of the potential existence of mechanics’ liens, the Supreme Court, perhaps curiously, rejected the argument that a mortgagee’s actual notice of the prior performance of lienable services was sufficient to accord priority to the lien. Williams & Works, Inc v Sprinfield Corp, 408 Mich 753-754. This rejection seems to be based on the statutory language and longstanding judicial construction requiring a "commencement”, leading to reliance by lenders on the date of commencement as the date for fixing priorities regardless of the reasons for selecting that date.
At least two other sorts of on-site work occurred prior to the giving and recording of the mortgage. Beginning on March 7, 1972, soil borings were conducted by Michigan Drilling, a subcontractor. The Supreme Court, however, has held that such activity is insufficient to signal commencement. Williams & Works, Inc v Springfield Corp, 408 Mich 735, fn 2. In addition, on April 13, 14, 16, and 17, 1972, demolition of existing structures on the construction site was accomplished by another subcontractor. There is a split of authority over the question whether such demolition constitutes a commencement, Anno: What constitutes "commencement of building or improvement" for purposes of determining accrual of mechanics’ lien, 1 ALR3d 822, 828-829, but no Michigan cases have yet addressed this issue. Because we hold, based on existing Michigan authority, that the delivery of construction materials is a sufficient commencement, there is no need to address the question of whether demolition would also be sufficient.