Opinion by
This is an appeal by plaintiffs from a decree of the court below sustaining defendants’ preliminary objections and dismissing plaintiffs’ complaint in equity for lack of jurisdiction.
Plaintiffs’ bill sought an injunction to restrain the City of Philadelphia from issuing any permit under the terms-of an ordinance of--Deeember 29, 1955, which-re *352 zoned a certain tract of land from class “A Residential” to class “H-2 Residential.” The tract affected by the ordinance adjoins or is in the immediate vicinity of plaintiffs’ properties. The bill averred that the ordinance would permit the owners to erect apartment buildings on their land and that it was invalid for several reasons.
One reason was that the construction of such buildings would constitute a nuisance. As to this the court pointed out that equity could not take jurisdiction to enjoin the erection of an apartment house as а nuisance per se, and plaintiffs admit in their brief that the court was right in so holding.
Another reason was that the ordinance violated the Act of May 6, 1929, P.L. 1551, section 3, which provided that zoning regulations should be designed to lessen traffic congestion and overcrowding, reduce fire hazards, and for other beneficial purposes, whereas it was alleged that this ordinance, so far from accomplishing those results, would aggravate the evils which the act intended should be eliminated; it was also charged that the ordinance was invalid as constituting “spot” zoning.
Anоther alleged reason was that the attempt to impose the re-zoning under the ordinance would be in violation of plaintiffs’ rights under the Constitution of the Commonwealth of Pennsylvania and the 14th Amendment of the Constitution of the United States.
Finally, it was charged that the ordinance was invаlid because it was not enacted, as it was claimed it should have been, by the vote of three-fourths of all the members of the Council of the City of Philadelphia.
The controlling question in the ease is whether a bill in equity will lie to challenge the validity of a zoning ordinance or whether such an attack must await the *353 application to tlie zoning authorities for a permit and follow the subseqnent procedure prescribed by statute through the Zoning Board of Adjustment and thence by appeal to the court.
The answer to the question thus posed has been answered, as the court below properly held, by an unbroken line of authorities which have firmly established the applicable rule. In the first place, it is hornbook law that equity will not act where, as here, there is an adequate remedy at law. In the second plaсe, it is equally well established that a court will take jurisdiction only in a case in which a challenged statute, ordinance, or rule of court has been actually applied to a litigant; it does not undertake to decide academically the unconstitutionality or othеr alleged invalidity of legislation until it is brought into operation so as to impinge upon the rights of some person or persons. 1 In the third place, where, as here, a remedy or method of procedure is provided by an act of assembly, the directions of such act must be strictly pursued and, under the Act of March 21,1806, 4 8m. L. 326, §13, such remedy or procedure is exclusive.
In
Taylor v. Moore,
In
Hollearn v. Silverman,
In
Wojnar v. Yale & Towne Manufacturing Co., Inc.,
*355
In
Castle Shannоn Coal Corporation v. Upper St. Clair Township,
In
Wyszynski v. Philadelphia,
In
Oleri Appeal,
In
Shender v. Philadelphia,
In
Jacobs v. Fetzer,
In
Barth v. Gorson,
In
Lewis v. Emmott,
In
Commonwealth v. DeBaldo,
*357
In
Vogt v. Port Vue Borough,
Plaintiffs rely upon three cases where procedure by bill in equity in a zoning matter was seemingly tolerated. One is the case oí
Fierst v. William Penn Memorial Corporation,
Plaintiffs, while admitting that the constitutionality or invalidity for other “substantive” reasons of a zoning ordinance cannot be determined by bill in equity, seek to distinguish the present case on the ground that the invalidity of the zoning ordinance here questioned is based on the contention that the ordinance was not properly enacted by the council, which, it is contended, is merely a “procedural” matter. This is so obviously a distinction without a difference as not to require extended discussion. Apart from the fact that the cases hereinbefore cited apply the rule of exclusive remedy as provided by the statute to all kinds of alleged defects or irregularities in a zoning ordinance, 2 and apart from the further fact that plaintiffs’ bill in equity actually attacks the present ordinance not only for the so-called “procedural reason” but also on what it itself denominates as “substantive” and constitutional reasons, it is obvious that if the ordinance was not properly enacted by the Council it is as much a nullity and has no more existence in law than if it were unconstitutional or invalid for any other reason; if it is void the reason therefor cannot constitutе the basis for any change in jurisdiction or proce *359 dure. It is also clear that, if recourse were here permitted to equity, and if the decision were that the ordinance had been validly enacted, there would then have to follow an application to the zоning authorities for a permit where all pertinent facts bearing on the application must be ascertained, and thus two proceedings would have to be successively instituted instead of the one provided by section 8 of the Act of May 6,1929, P.L. 1551, and section 5-1006 of the Philadelрhia Home Eule Charter, through the Board of Adjustment and appeal therefrom, if necessary, to the court. No permit in the present case has as yet been requested, and perhaps never will be, the buildng of an apartment house being merely said to be at this time within the “сontemplation” of the owners of the tract in question. If, as and when, however, such an application may be made, plaintiffs, intervening in the proceedings before the Board of Adjustment, would presumably present their contention that the zoning ordinance applicable to the situation was the one which originally zoned the tract in question as Class “A Residential,” the re-zoning ordinance of December 29, 1955, which changed the classification to Class “H-2 Residential,” not being a valid enactment, and the question thus presented would, as in all such cаses, be decided in the first instance by the Board of Adjustment and, on any appeal therefrom, by the common pleas and appellate courts.
The decree is affirmed at appellants’ costs.
Notes
Although there are many eases in which bills in equity have been sustained to restrain the collection of taxes tinder invalid laws, or where a property Is exempt from such taxation, in all such cases the action was instituted only after the tax had actually been assessed against the property in question. Examples:
American Svmday School Union v. City of Philadelphia,
Cf.
Griffith v. McCandless Township,
