delivered the Opinion of the Court.
¶1 Mike Touris and Chuck Sneed (“Touris”) appeal from an order of the District Court, Eleventh Judicial District, Flathead County, granting summary judgment in favor of Flathead County, Bigfork Land Use Advisory Committee, Flathead County Planning Board, Flathead County Board of Commissioners, Flathead County Planning and Zoning Office, Flathead County Zoning Administrator Jeff Harris, and Does 1-10, inclusive (“the County”). We affirm.
ISSUES
¶2 We restate Touris’ issues on appeal:
1. Whether the District Court correctly concluded that res
judicata barred Touris’ claims.
2. Whether the County waived the defense of res judicata.
BACKGROUND
¶3 On February 14, 2008, the Flathead County Board of Commissioners denied Touris’ request for a zoning change. On March 7, 2008, pursuant to § 72-2-110, MCA, Touris filed a petition for judicial review, Mike Touris and Chuck Sneed v. Flathead County Board of Commissioners, DV-08-328(A) (Touris I), in the District Court of Flathead County. The petition challenged the validity of the Board of Commissioners’ decision, factually alleging that (1) Touris applied for a zoning change, (2) the Bigfork Land Use Advisory Committee denied Touris’ application, (3) the subsequent staff report from the Flathead County Planning and Zoning Office was inaccurate and biased, (4) members of the Planning Board were aware of the inaccuracies and bias, (5) the Flathead County Board of Commissioners adopted the staff report, (6) some members of the *174 Board of Commissioners realized that the staff report contradicted their opinions and sought new findings of fact, (7) the Bigfork Land Use Advisory Committee exerted undue pressure on the Board of Commissioners by writing letters to the local newspaper and a letter directly to the Board, and (8) at the subsequent hearing, despite knowing of the inaccurate report, the Board of Commissioners voted to deny Touris’ application.
¶4 Touris argued that these facts established the Board of Commissioners’ decision was based on errant findings of fact, was contrary to the stated opinion of one commissioner, and the Board of Commissioners had been improperly misled by the Zoning Administrator. Touris further alleged:
22. On the foregoing bases, the decision of the Board of Commissioners was:
a. Made upon unlawful procedure;
b. Affected by errors of law;
c. Clearly erroneous in view of the reliable, probative, and substantial evidence on the whole record; and
d. Arbitrary and capricious and characterized by an abuse of discretion or a clearly unwarranted exercise of discretion.
¶5 On April 2,2008, Flathead County filed an answer and moved for summary judgment. In response, Touris argued, in part, that the Board of Commissioners’ decision was a violation of equal protection, and substantive and procedural due process. A year later, on April 14, 2009, Touris moved to dismiss Touris I with prejudice. The District Court granted Touris’ motion on April 21, 2009.
¶6 In the meantime, on March 14, 2008, seven days subsequent to the filing of Touris I, Touris filed this current action (Touris II). Touris II set forth a factual scenario identical to Touris I, save for minor changes in paragraph structure and language. The Touris II complaint asserted 11 counts:
I. Violation of due process by the Bigfork Land Use Advisory Committee;
II. negligence/negligence per se by the Bigfork Land Use Advisory Committee;
III violation of equal protection by the Bigfork Land Use Advisory Committee;
Ilia, negligence by the Planning Board;
IV. violation of equal protection by the Board of Commissioners;
V. negligence by the Board of Commissioners;
*175 VI. violation of substantive due process by the Board of Commissioners;
VII. negligent misrepresentation by the Flathead County Planning and Zoning Office;
VIII. violation of equal protection by the Flathead County Planning and Zoning Office;
IX. violation of procedural due process by Jeff Harris; and
X. failure by Flathead County to adequately train and supervise employees and board members.
¶7 On April 3,2008, the County moved to dismiss Touris II pursuant to M. R. Civ. P. 12(b)(6). On January 13, 2009, the District Court entered an order dismissing some of the counts. The District Court left in place Touris’ simple negligence counts (II, Illa, V), and equal protection claims (III, VIII). Additionally, the Court declined to dismiss Touris’ failure-to-train count (X), because it was premised on the surviving equal protection claims. Flathead County filed an answer on February 2, 2009.
¶8 On December 1, 2009, Flathead County moved to amend its answer to include a defense of res judicata. The County argued it was previously unable to assert res judicata because Touris I was pending when the original answer in Touris II was filed. On February 9, 2010, the District Court granted the County’s motion. The County subsequently amended its answer in Touris II and included res judicata as an affirmative defense.
¶9 On February 26, 2010, the County moved for summary judgment on the remaining counts in Touris II. The County asserted that Touris II was barred by res judicata. On October 4, 2010, the District Court entered an order dismissing Touris II. Touris appeals from that dismissal.
STANDARD OF REVIEW
¶10 We review a court’s grant of summary judgment de novo.
Wiser v. Mont. Bd. of Dentistry,
DISCUSSION
¶11 Whether the District Court correctly concluded that res judicata barred Touris’ claims in Touris II.
¶12 The doctrine of res judicata, or claim preclusion, bars re-litigation of a claim that a party has already had the opportunity to litigate.
*176
Baltrusch v. Baltrusch,
¶13 A matter is res judicata if four elements are met:
1. The parties or their privies are the same;
2. The subject matter of the present and past actions is the same;
3. The issues are the same and relate to the same subject matter; and
4. The capacities of the parties are the same to the subject matter and issues between them.
Wiser, ¶ 9. Additionally, res judicata only applies once a final judgment on the merits has been entered in an earlier action. Baltrusch, ¶ 15; Wiser, ¶ 9.
¶14 On appeal, Touris concedes that the first element, parties and privies, is met. Touris concedes the fourth element as well. Touris challenges (1) whether Touris I was a final judgment on the merits, (2) whether the subject matter of Touris I is the same as Touris II, and (3) whether the issues of Touris I, are the same as Touris II and relate to the same subject matter. We address each in turn.
a. Final Judgment on the Merits
¶15
Touris I
was a final judgment on the merits for the purposes of res judicata because Touris dismissed that action with prejudice. Voluntary dismissal of an action with prejudice constitutes a final judgment on the merits.
Beasley v. Flathead County,
¶16 Moreover, Touris’ assertion that res judicata applies only to actions filed subsequent to a final judgment, is meritless. The “date of rendition of the judgment is controlling for purposes of res judicata, not the dates of commencement of the action creating the bar or the action to be affected by the bar.”
United States ex rel. Barajas v. Northrop Corp.,
b. Subject Matter
¶17 The subject matter of
Touris I
and
Touris II
is identical. This element of res judicata is concerned with whether the two actions arise from the same underlying basis.
Wiser,
¶¶ 12-13;
State ex rel. Harlem Irrigation Dist. v. Montana Seventeenth Judicial Dist. Court,
c. Identity of Issues
¶18 “Res judicata bars not only issues that were actually litigated, but also those that could have been litigated in a prior proceeding.”
Harlem,
*178
¶19 Touris asserts that a petition for judicial review is procedurally distinct from a jury trial, and that this difference precludes res judicata. However, this argument is beside the point. Touris dismissed
Touris I
with prejudice. An action that is dismissed “with prejudice” is conclusive as to the rights of the parties “‘as if the suit had been prosecuted to a final adjudication adverse to the plaintiff.”’
State ex rel. Torres v. Montana Eighth Judicial Dist. Court,
¶20 Whether the County waived the defense of res judicata.
¶21 Touris makes a final argument that res judicata cannot apply because the County waived the right to assert res judicata. He argues that by allowing Touris I and Touris II to proceed concurrently, the County acquiesced to “split-claims.” The Restatement (Second) of Judgments provides that res judicata does not apply where the “parties have agreed in term or in effect that the plaintiff may split his claim, or the defendant has acquiesced therein.” Restatement (Second) of Judgments, § 26(l)(a).
¶22 Montana has never adopted § 26 of the restatement,
Fisher v. State Farm Gen. Ins. Co.,
¶23 Affirmed.
