This appeal involves attempts by two municipalities to annex the same area, Lake Concord and its watershed, which abuts the City of Kannapolis, and which, prior to annexation by the City of Concord of the intervening tract, was separated from that city by an intervening tract of land consisting of eight parcels. The issue presented by defendant Concord’s cross-appeal is whether the North Carolina annexation statutes permit a municipality to annex by voluntary means a tract of land that is contiguous with its municipal boundaries only by virtue of a second tract of land that is being annexed simultaneously. We hold that they do not. The issue presented by plaintiff Kannapolis’ appeal is whether its failure to specify in its initial resolution of intent to annex that the effective date of the annexation would be at least one year *514from the date of passage of the annexation ordinance constituted substantial incompliance with the annexation statute, thus voiding the annexation. We hold that it did not. The result is that under the “prior jurisdiction rule” plaintiff Kannapolis prevails as the first to annex.
The City of Concord is separated from Lake Concord and its watershed, both of which it owns, by a tract of land whose owners filed a petition for voluntary annexation with the Concord Board of Aldermen on or about 16 September 1987. On 24 September 1987, in accordance with the provisions of N.C.G.S. § 160A-31(c), the Board of Aldermen adopted resolutions acknowledging the submittal of this petition, directing the city clerk to investigate its sufficiency, and fixing 8 October 1987 for the public hearing mandated by the statute. The Board also adopted a third resolution stating defendant Concord’s intent to annex its Lake Concord property and prescribing that the question of this annexation be addressed at the same public meeting as that set for the annexation of the first, privately-owned tract. This third resolution was adopted pursuant to N.C.G.S. § 160A-31(g), which provides that the governing board of a municipality “may initiate annexation of contiguous property owned by the municipality by adopting a resolution stating its intent to annex the property, in lieu of filing a petition.” N.C.G.S. § 160A-31(g) (1987).
Notice of the public hearing was properly published. On 8 October 1987, at the conclusion of the hearing, defendant Concord’s Board of Aldermen found that the landowners’ petition for annexation met the requirements of N.C.G.S. § 160.A-31, and it passed an ordinance annexing that eight-parcel tract to the City of Concord, to be effective 31 October 1987. The Board simultaneously passed an ordinance annexing the Lake Concord property, also to be effective 31 October 1987.
On 14 October 1987, plaintiff Kannapolis’ City Council adopted a “resolution of intent” to consider the annexation of certain properties contiguous with its boundaries, including the Lake Concord property. Plaintiff Kannapolis followed the procedure for involuntary annexation detailed in N.C.G.S. § 160A-49. This statute mandates that no resolution of intent may be adopted unless the municipality’s governing body has either identified the area under consideration for annexation at least one year prior to adopting *515a resolution of intent, N.C.G.S. § 160A-49(i) (1987),1 or, for cities initiating annexation with a resolution of intent rather than a resolution of consideration, by providing in the resolution of intent and in the ordinance annexing the area “that the effective date of the annexation shall be at least one year from the date of passage of the annexation ordinance.” N.C.G.S. § 160A-49(j) (1987). See Town of Hazelwood v. Town of Waynesville, 320 N.C. 89, 90-91, 357 S.E.2d 686, 687, reh’g denied, 320 N.C. 639, 360 S.E.2d 106 (1987). Plaintiff Kannapolis’ resolution of intent to consider the annexation of the Lake Concord property, while otherwise in compliance with the statute, failed to specify the effective date of annexation. The annexation ordinance, adopted 30 March 1988, however, did specify an effective date of 31 March 1989.
In its complaint under the Declaratory Judgment Act, N.C.G.S. § 1-253 through -267 (1983), plaintiff Kannapolis averred that annexation of the Lake Concord property by defendant Concord was invalid because, at the time of adoption of defendant Concord’s resolution of intent to annex the Lake Concord tract, the property was not contiguous with that city’s boundaries. In its answer defendant Concord asserted that plaintiff Kannapolis also had failed to comply with the statutory procedures for involuntary annexation and thus had failed to acquire prior jurisdiction2 for annexation of the Lake Concord property.
Aware that its initial efforts to annex the Lake Concord property might have been procedurally flawed, defendant Concord attempted to repeat its annexation process properly. On 10 December 1987, the Board of Aldermen adopted a second resolution of intent to annex the Lake Concord property in accordance with N.C.G.S. § 160A-31(g). As the intervening privately-owned tract had been annexed effective 31 October 1987, the Lake Concord property was, by that date, contiguous with defendant Concord’s boundaries, as was statutorily required for the annexation of municipally owned property. N.C.G.S. § 160A-31(g) (1987).
*516The trial court granted summary judgment for defendant Concord, and the Court of Appeals affirmed. City of Kannapolis v. City of Concord, 95 N.C. App. 591, 383 S.E.2d 402 (1989). The Court of Appeals held that because annexation by defendant Concord of the intervening tract — the subject of the landowners’ petition for voluntary annexation — was not effective until 31 October 1987, the Lake Concord property was not contiguous to defendant Concord at any time prior to that date, as required by N.C.G.S. § 160A-31(g) for annexation. Id. at 593-94, 383 S.E.2d at 403-04. The majority, however, held that the failure of plaintiff Kannapolis to comply with the requisite of N.C.G.S. § 160A-49(j) by providing in its initial resolution of intent that the annexation would take effect one year after the passage of the ordinance was fatal to its attempt to annex the property, despite plaintiff Kannapolis’ averment that such a “purely procedural” mistake did not materially prejudice anyone. Stating that the absence of prejudice does not in itself guarantee “substantial compliance,” the majority held that the statutory requisite is explicit and essential. Id. at 595, 383 S.E.2d at 404-05. Judge Phillips, dissenting, maintained that the absence of a specified effective annexation date from the resolution of intent was a minor defect and that accordingly summary judgment should have been entered for plaintiff Kannapolis. Id. at 596, 383 S.E.2d at 405. Plaintiff Kannapolis exercised its right to appeal. N.C.G.S. § 7A-30(2) (1989). Defendant Concord cross-appealed, and on 20 November 1989 we allowed its petition for discretionary review of the issue raised by the cross-appeal, viz, whether its 24 September 1987 resolution of intent to annex was invalid because the subject property was not contiguous to its boundaries at the time.
Our review is limited to the following inquiries: “(1) Did [each] municipality comply with the statutory procedures? (2) If not, will [the opposing party] ‘suffer material injury’ by reason of the municipality’s failure to comply?” In re Annexation Ordinance, 278 N.C. 641, 647, 180 S.E.2d 851, 855 (1971). Where annexation proceedings “show prima facie that there has been substantial compliance with the requirements and provisions of the Act, the burden is upon [the opposing party] to show by competent evidence failure on the part of the municipality to comply with the statutory requirements as a matter of fact, or irregularity in proceedings which materially prejudice^] the substantive rights of [the opposing party].” In re Annexation Ordinance, 255 N.C. 633, 642, 122 S.E.2d *517690, 697 (1961). “Substantial compliance means compliance with the essential requirements of the Act.” Huntley v. Potter, 255 N.C. 619, 627, 122 S.E.2d 681, 686 (1961).
The question presented by the cross-appeal is whether the initial annexation of the Lake Concord property by defendant Concord was invalid because that property was not itself contiguous to any boundary of that city at the time of the adoption of the resolution of intent to annex. We hold that the Court of Appeals correctly resolved this question. The governing statute plainly states that a municipality “may initiate annexation of contiguous property owned by the municipality by adopting a resolution stating its intent to annex the property, in lieu of filing a petition.” N.C.G.S. § 160A-31(g) (1987) (emphasis added). N.C.G.S. § 160A-31(f) provides:
[A]n area shall be deemed “contiguous” if, at the time the petition is submitted, such area either abuts directly on the municipal boundary or is separated from the municipal boundary by a street or street right-of-way, a creek or river, or the right-of-way of a railroad or other public service corporation, lands owned by the municipality or some other political subdivision, or lands owned by the State of North Carolina.
N.C.G.S. § 160A-31(f) (1987). As the Court of Appeals noted, the privately-owned tract linking the Lake Concord property to the Concord city limits was not legally annexed on the date the Concord Board of Aldermen adopted its resolution of intent regarding the Lake Concord property, and it did not become so annexed until the effective date of the annexation ordinance, 31 October 1987. City of Kannapolis v. City of Concord, 95 N.C. App. at 594, 383 S.E.2d at 404. Contiguity with the boundaries of the annexing municipality at the time of the adoption of a resolution of intent pursuant to N.C.G.S. § 160A-31(g) is without question an essential requirement of N.C.G.S. §§ 160A-31(f) and (g), read together; failure to meet that requirement precludes a showing of substantial compliance with the Act’s provisions and compels the holding that this resolution of intent was void. Thus, for purposes of the prior jurisdiction rule, the first valid mandatory public procedural step by defendant Concord in its attempt to annex the Lake Concord property was taken on 10 December 1987, the date of the adoption by the Concord Board of Aldermen of its second resolution of intent to annex that property.
*518Applying the same standard of review to the question presented by plaintiff Kannapolis’ appeal — whether plaintiff Kannapolis’ failure to provide in its initial resolution of intent that the effective date of its annexation would be at least one year from the date of passage of the annexation ordinance precluded substantial compliance with the Act and materially injured defendant Concord — we conclude that such failure was an inconsequential irregularity.
Absolute and literal compliance with a statute enacted describing the conditions of annexation is unnecessary; substantial compliance only is required. . . . The reason is clear. Absolute and literal compliance with the statute would result in defeating the purpose of the statute in situations where no one has been or could be misled.
In re Annexation Ordinance, 278 N.C. 641, 648, 180 S.E.2d 851, 856 (quoting State v. Town of Benson, Cochise County, 95 Ariz. 107, 108, 387 P.2d 807, 808 (1963)).
As we noted in Town of Hazelwood v. Town of Waynesville, 320 N.C. 89, 93, 357 S.E.2d 686, 688, the statute governing involuntary annexation mandates a waiting period of at least one year before annexation may be completed, whether the process is initiated by resolution of consideration or, as here, by resolution of intent to annex. The reason the statute requires a lengthy period of consideration preceding either the mandatory resolution of intent or the effective date of the annexation ordinance is “to require towns and cities to consider carefully the consequences of involuntary annexation of a particular territory, and it indicates the legislature’s desire to enable residents of the area under consideration to anticipate and adjust to the proposed annexation.” Id., 357 S.E.2d at 689. It is not the specification of a date at least one year in advance of a resolution of intent to annex that provides a municipality a lengthy period of reflection on its intention and provides affected property owners an opportunity to anticipate and adjust, but the period itself, which is mandated by statute. Given that the minimum period is set by statute and that the annexation ordinance adopted by plaintiff Kannapolis on 30 March 1988 did state the date annexation was to be effective, viz, 31 March 1989, the failure of plaintiff Kannapolis to state that date in its resolution of intent was not an omission of an essential requirement of the statute. The statement of the effective date in the annexation ordinance allowed affected parties ample time for *519action regarding the proposed annexation, thus fulfilling the notice purpose of the statute. The failure to include the effective date in the resolution of intent also thus was only a “slight irregularity,” and “slight irregularities will not invalidate annexation proceedings if there has been substantial compliance with all essential provisions of the law.” In re Annexation Ordinance, 278 N.C. at 648, 180 S.E.2d at 856.
Because the first valid mandatory public procedural step taken towards the involuntary annexation of the Lake Concord property by the City of Kannapolis was its resolution of intent of 14 October 1987, its proceedings were prior in time and thus prior in jurisdiction to the valid, voluntary annexation proceedings belatedly initiated by the City of Concord on 10 December 1987. See City of Burlington v. Town of Elon College, 310 N.C. 723, 314 S.E.2d 534. Accordingly, the decision of the Court of Appeals affirming summary judgment for defendant City of Concord is reversed. The case is remanded to the Court of Appeals for further remand to the Superior Court, Cabarrus County, for entry of summary judgment for plaintiff City of Kannapolis.
Reversed and remanded.
. On 2 February 1987 both plaintiff Kannapolis and defendant Concord had initiated annexation of the Lake Concord area in accordance with N.C.G.S. § 160A-49Ü) by adopting resolutions of consideration for the future annexation of that tract.
. Among equivalent proceedings the “one which is prior in time is prior in jurisdiction to the exclusion of those subsequently instituted.” City of Burlington v. Town of Elon College, 310 N.C. 723, 727, 314 S.E.2d 534, 537 (1984) (quoting 2 E. McQuillin, The Law of Municipal Corporations Sec. 7.22a (3d ed. 1966)).