Plaintiff Sun Communities appeals as of right the order granting summary disposition in favor of defendant Leroy Township pursuant to MCR 2.116(C)(4) and (10). We reverse.

I. BASIC FACTS AND PROCEDURAL HISTORY

Plaintiff, has an ownership interest in approximately 25.02 acres of land located in Leroy Township. The property is currently zoned AG-Agricultural Enterprise District and is directly adjacent to a manufactured-housing community of 146 sites, known as the “Hamilton Manufactured Home Community,” in which plaintiff also has an interest.

On November 4, 1997, plaintiff filed an application with the township to have the property rezoned from AG-Agricultural Enterprise District to MP-Mobile Home Park District (the “rezoning”). Plaintiff sought the rezoning to expand the existing Hamilton Manufactured Home Community by adding an additional 104 sites.

On January 8, 1998, following a public hearing, the township planning commission voted unanimously to recommend to the township board that the rezoning *667 be denied. On February 3, 1998, the township board denied the rezoning by a vote of four to zero.

On April 29, 1998, plaintiff filed an eight-count complaint against the township in the circuit court, asking for injunctive and declaratory relief. The complaint alleged a taking of private property without just compensation (count I), a violation of civil rights pursuant to 42 USC 1983 (count n), a violation of federal and state constitutional rights (count m), a violation of equal protection (count iv), a violation of substantive due process (count v), exclusionary zoning in violation of statutory and common law (counts vi and vn), and violation of the federal fair housing act (count vm). 1 Plaintiff requested a declaratory judgment that the zoning and the township’s actions were both unreasonable and confiscatory as applied to the property. Plaintiff further sought injunctive relief allowing it to develop the property as a manufactured-home community as proposed.

On August 13, 1998, defendant filed a motion for summary disposition of counts I through vn pursuant to MCR 2.116(C)(4), arguing that under this Court’s decision in Krohn v Saginaw, 175 Mich App 193; 437 NW2d 260 (1988), plaintiff had twenty-one days in which to appeal the denial of the rezoning to the circuit court. Thus, because plaintiff failed to pursue an appeal within twenty-one days, the circuit court lacked subject-matter jurisdiction over these counts. In response, plaintiff argued that the decision in Krohn does not apply to plaintiff’s complaint because the complaint did not involve an “administrative *668 appeal” from a township zoning board of appeals. Instead, the complaint involved a constitutional challenge to the application of the AG zoning to plaintiffs property. The circuit court disagreed with plaintiffs attempt to distinguish Krohn and dismissed counts I through vn of the complaint pursuant to MCR 2.116(C)(4) for lack of subject-matter jurisdiction.

H. ANALYSIS

A. STANDARD OF REVIEW

Plaintiff argues on appeal that the complaint filed in the circuit court challenging the zoning of property invoked the original, rather than appellate, jurisdiction of the court and, therefore, the trial court improperly granted summary disposition for lack of subject-matter jurisdiction. This Court reviews de novo a circuit court’s grant or denial of summary disposition. Walker v Johnson & Johnson Vision Products, Inc, 217 Mich App 705, 708; 552 NW2d 679 (1996). When reviewing a motion for summary disposition under MCR 2.116(C)(4), this Court must determine whether the pleadings demonstrate that the defendant was entitled to judgment as a matter of law, or whether the affidavits and other proofs show that there was no genuine issue of material fact. Id. Whether plaintiff was required to file an appeal from the denial of a rezoning within twenty-one days involves a question of law. Such questions of law are also reviewed de novo on appeal. Cardinal Mooney High School v Michigan High School Athletic Ass’n, 437 Mich 75, 80; 467 NW2d 21 (1991).

*669 B. ZONING: LEGISLATIVE ACT

Municipalities derive their authority to zone solely pursuant to state enabling legislation. Lake Twp v System, 21 Mich App 210, 212; 175 NW2d 337 (1970). The Township Zoning Act, MCL 125.271 et seq.) MSA 5.2963(1) et seq. (the tza), is the enabling statute that vests a township with the authority to regulate land use. Addison Twp v Gout (On Rehearing), 435 Mich 809, 813; 460 NW2d 215 (1990). Various actions under the tza, such as site-plan review and the approval of special use permit requests, are essentially administrative in nature. See, e.g., Hess Realty, Inc v Ann Arbor, 61 Mich App 319; 232 NW2d 695 (1975).

In contrast with the administrative procedures, it is settled law in Michigan that the zoning and rezoning of property are legislative functions. Schwartz v City of Flint, 426 Mich 295, 307-308; 395 NW2d 678 (1986). As explained in Crawford, Michigan Zoning and Planning (3d ed), § 1.11, p 53:

The adoption of a zoning ordinance is a legislative act____Logic suggests that since the zoning map is almost inevitably a part of the zoning ordinance, the rezoning of a single parcel of land from one district to another is an amendment of the zoning ordinance and is likewise a legislative act. Because rezoning is a legislative act, its validity and the validity of a refusal to rezone are governed by the tests which we ordinarily apply to legislation. Among other things, the legislature had provided for the amendment of zoning ordinances in essentially the same manner as their original enactment. ... It has been held that the amendment of a zoning ordinance cannot be enjoined, as that would be a judicial invasion of the legislative function. The remedy of the party who conceives himself injured by an *670 amendment is to wait until it has been adopted and then challenge it in court.[ 2 ]

Accordingly, the rezoning at issue in this case is a legislative act, not an administrative act.

C. APPEALS TO CIRCUIT COURT

The only provision in the TZA providing for a direct appeal to the circuit court is MCL 125.293a; MSA 5.2963(23a), which authorizes a direct appeal from decisions made by a zoning board of appeals (zba). The zba is a municipal administrative body, Schlega v Detroit Bd of Zoning Appeals, 147 Mich App 79, 81; 382 NW2d 737 (1985), charged with interpreting the ordinance, hearing appeals, granting variances, and performing various other functions that may arise in the administration of the zoning ordinance. See MCL 125.288-125.293; MSA 5.2963(18)-5.2963(23); Szluha v Avon Charter Twp, 128 Mich App 402; 340 NW2d 105 (1983). By statute, a zba’s decisions (administrative acts) are final, subject to circuit court review under the standard set forth in MCL 125.293a; MSA 5.2963(23a). Nowhere in this provision, or in any other provision of the tza, is it mandated that a decision of a township board denying a rezoning (a legislative act) be appealed to the circuit court.

*671 D. THE CIRCUIT COURT’S DECISION

The circuit court relied exclusively on Krohn, supra, in dismissing plaintiffs complaint. In Krohn, the plaintiffs were the owners of a parcel of property who challenged the administrative decision of the Saginaw Planning Commission to grant a special use permit and a variance that would allow the construction of an auto-parts store and gasoline station on a neighboring parcel. The plaintiffs in Krohn conceded that, in granting the special use permit and variance request, the planning commission was exercising the authority of the zoning board of appeals. Krohn, supra, at 195-196. On the basis of this concession, a panel of this Court held that the statutory provisions governing zba appeals would apply and that the plaintiffs’ complaint was barred because the plaintiffs failed to file their appeal within twenty-one days of the denial. 3

*672 Krohn is factually distinguishable from the present case. Here, plaintiffs lawsuit does not involve a challenge to the administrative activities of a municipal body acting in the capacity of a zoning board of appeals. Instead, it involves numerous constitutional challenges to the legislative actions of the township board in applying the AG zoning to plaintiffs property. There is no authority that requires a party to pursue an appeal to challenge the constitutionality of a legislative act of rezoning. Indeed, “neither a city council’s decision to rezone land nor a zoning board of appeal’s decision to grant a variance is relevant to the constitutionality or unconstitutionality of an ordinance’s provisions.” Paragon Properties Co v Novi, 452 Mich 568, 580, n 15; 550 NW2d 772 (1996).

Accordingly, we conclude that plaintiff was not required to pursue an appeal of the township’s decision to deny plaintiff’s request for rezoning in order to challenge the constitutionality of the zoning ordinance. The trial court erred in concluding that the circuit court lacked subject-matter jurisdiction over plaintiff’s cause of action.

Reversed.