*62 Opinion

The respondent mother of Leeanna B. (mother) appeals from the judgment of the Superior Court juvenile division (juvenile division) ordering her to provide the intervenor paternal grandmother of Leeanna (paternal grandmother) with visitation privileges in response to the paternal grandmother’s motion for contempt. We vacate the judgment of the juvenile division and direct the Superior Court family division (family division) to dismiss the motion for contempt.

The procedural history of this case is somewhat complicated but will be condensed for our purposes. Leeanna was placed by the department of children and families (department) with her paternal grandmother, a relative foster care provider, shortly following her birth, and she remained in her care for approximately seventeen months. On March 18, 2010, the juvenile division revoked its prior disposition of commitment of Leeanna to the care, custody and control of the petitioner, the commissioner of children and families, and ordered that guardianship of her be restored to her mother and her respondent father, that physical custody be granted to her mother under an order of protective supervision, and that specific visitation be granted to her paternal grandmother. On August 17,2010, the juvenile division allowed the order of protective supervision to expire, and it closed the juvenile case, noting, however, that existing custody orders would remain in effect.

While matters were proceeding in the juvenile division, the mother of Leeanna also brought an action for custody and support in the family division against the father of Leeanna (custody case). Following the closing of the child protection case by the juvenile division, the paternal grandmother, on August 20, 2010, filed a motion to intervene in the custody case in the family *63division, seeking to continue her visitation with Leeanna. On September 20, 2010, the family division denied -without prejudice her motion to intervene. The paternal grandmother did not appeal from that judgment. The family division subsequently rendered judgment in the custody case on July 19, 2011, granting, inter alia, sole custody of Leeanna to her mother.

On April 26, 2012, the paternal grandmother again filed a motion to intervene in the custody case in the family division, and, on May 14, 2012, she filed a motion for contempt, alleging that the mother of Leeanna had failed to provide her, since August of 2010, -with visitation as had been ordered by the juvenile division. On July 27, 2012, the family division denied the paternal grandmother’s motion to intervene without prejudice.1 *64On July 30, 2012, however, the family division, sua sponte, reconsidered its denial of the motion for contempt and referred that motion to the juvenile division because that division originally had ordered that visitation be provided to the paternal grandmother.

*65After conducting a hearing on the motion for contempt, the juvenile division found that the mother was not in contempt because she reasonably believed that the orders of visitation had expired in August of 2010 when the juvenile case was closed. The juvenile division, however, also concluded that its visitation orders still were in effect and that it was in the best interest of Leeanna to have visitation with her paternal grandmother. Because there had been a cessation of visitation, the juvenile division ordered a graduated schedule of visitation to the paternal grandmother in order to prepare Leeanna for the renewal of regular visitation. This appeal followed.

The mother claims in relevant part that the paternal grandmother lacked standing to bring a motion for contempt in the custody case in the family division and that the family division improperly referred the motion to the juvenile division. We agree with both contentions.

“When standing is put in issue, the question is whether the person whose standing is challenged is a proper party to request an adjudication of an issue . . . .” (Internal quotation marks omitted.) Smith v. Snyder, 267 Conn. 456, 460, 839 A.2d 589 (2004). “If a party is found to lack standing, the court is without subject matter jurisdiction to determine the cause.” (Internal quotation marks omitted.) In re Christina M., 280 Conn. 474, 480, 908 A.2d 1073 (2006). “[A] court lacks discretion to consider the merits of a case [or claim] over which it is without jurisdiction .... The objection of want of jurisdiction may be made at any time . . . [a]nd the court or tribunal may act on its own motion, and should do so when the lack of jurisdiction is called to its attention. . . . The requirement of subject matter jurisdiction cannot be waived by any party and can be raised at any stage in the proceedings.” (Internal quotation marks omitted.) Warner v. Bicknell, 126 Conn. App. 588, 596, 12 A.3d 1042 (2011).

*66Here, the paternal grandmother filed two motions to intervene in the custody case in the family division. Both of those motions were denied without prejudice. She did not appeal from either judgment. The paternal grandmother also filed a motion for contempt in the custody case in the family division, but she was not a party to that action, the court twice having denied her intervenor status. Because she was not a party to that action, she had no standing to file amotion for contempt in that action, and the family division should have dismissed her motion.2

The judgment of the Superior Court juvenile division is vacated and the case is remanded to that court with direction to transfer the motion for contempt back to the Superior Court family division, and that court is directed to dismiss the motion.

In this opinion the other judges concurred.