OPINION
Appellant Connie Martin moved for sanctions against appellee, the Texas Department of Family and Protective Services (DFPS), 1 alleging that the lawsuit the *392 DFPS had filed against her was frivolous. The same day, the DFPS moved to nonsuit its claims against Martin, and the trial court granted the motion. Thereafter, Martin sought discovery against the DFPS. The DFPS responded by filing a plea to the jurisdiction, contending that the trial court had, by then, lost plenary power over the case. The trial court granted the DFPS’s plea and this appeal followed. We conclude that the trial court correctly determined that it lacked plenary power and therefore we vacate its order granting the plea and dismiss this appeal.
Background
In October 2002, the DFPS sued Martin, seeking protection of a child, conservator-ship, and the termination of her parental rights. On November 20, 2002, Martin moved for sanctions. That day, the DFPS moved to nonsuit its claims, and the trial court granted the motion. In February 2003, Martin served the DFPS with a request for disclosures, and it answered them in March. Martin then served the DFPS with additional discovery requests. When the DFPS did not answer, Martin moved to compel. The DFPS responded by filing a plea to the trial court’s jurisdiction. The trial court granted the plea in a written order on September 3, 2003.
Analysis
We review whether a trial court has subject matter jurisdiction
de novo. Tex. Dep’t of Parks & Wildlife v. Miranda,
Trial Court Jurisdiction
A trial court retains jurisdiction over a case for 30 days after it signs a final judgment or order. Tex.R. Civ. P. 329b(d). During this period, the trial court has plenary power to modify its judgment, but, after the 30 days run, the trial court loses its plenary power, and lacks jurisdiction to act in the matter.
Check v. Mitchell,
Nonsuits
Rule 162 provides that a plaintiff may nonsuit a case, “at any time” before the introduction of all of the plaintiffs evidence, as the DFPS did in this case. Tex.R. Civ. P. 162. It further provides:
Any dismissal pursuant to this rule shall not prejudice the right of an adverse party to be heard on a pending claim for affirmative relief ... A dismissal under this rule shall have no effect on any motion for sanctions, attorney’s fees or other costs, pending at the time of dismissal, as determined by the court.
Id.
After a trial court loses plenary power, however, it has no authority to award sanctions.
Scott & White Mem’l Hosp. v. Schexnider,
The Pending Motion for Sanctions
Martin contends that her motion for sanctions is a claim for affirmative relief that not only survives the DFPS’s nonsuit under Rule 162, but also extends the trial court’s plenary power until its resolution. Martin notes that she moved for sanctions before the trial court signed the nonsuit order. The record supports her contention.
2
Martin further contends that the dismissal order was not a final order, as it failed to address her request for sanctions. The Texas Supreme Court, however, has held that a judgment need not resolve a pending sanctions motion to be final.
Lane Bank Equip. Co. v. Smith S. Equip., Inc.,
Martin relies on
Mattly v. Spiegel, Inc.,
Judicial action taken after the trial court’s plenary power has expired is void.
See State ex. rel Latty v. Owens,
After the trial court lost plenary power, it granted a plea to the jurisdiction on September 3, 2003. Because the trial court had lost its plenary power, the trial court’s order granting the DFPS’s plea is void. 3 Id. An appellate court should declare post-plenary-power orders void and dismiss any appeal. See id.
Conclusion
We conclude that the trial court correctly determined that it had no plenary power. Thus, its order granting the DFPS plea to the jurisdiction is void, and we vacate the order and dismiss the appeal.
Notes
. This agency was formerly known as the “Department of Protective and Regulatory Services.” See Act of June 2, 2003, 78th Leg., R.S., ch. 198, § 1.27, 2003 Tex. Gen. Laws 611, 641.
. The record reflects that the clerk filed the motion for non-suit at 10:36 a.m. and the order granting the non-suit at 10:36 a.m. on the same day. Martin filed an amended motion for sanctions the day after the trial court signed the nonsuit. In the trial court, Martin argued that she filed her motion for sanctions prejudgment. In any event, her amended motion for sanctions does not extend the trial court’s plenary power.
In re T.G.,
. Martin filed an amended motion for sanctions on November 21, 2002. Even if Martin’s amended motion for sanctions qualifies as a motion to modify the judgment, the result in this case would be the same. A motion to modify filed after a final judgment extends the trial court’s plenary power for a total of 105 days. See Tex.R. Civ. P. 329b(c), (e). Thus, the trial court’s plenary power would have expired on March 6, 2003, without any trial court ruling on the motion for sanctions.
