A Texas court will not modify a final order on conservatorship, possession, or access unless something has materially and substantially changed since the last order was rendered. That is the floor. Everything else is built on top of it: the petition, the evidence, the hearing.
Quick answer
A material change in circumstances under Tex. Fam. Code § 156.101 means a change in the circumstances of the child, a conservator, or a person affected by the order, significant enough and durable enough that the prior order no longer fits the family. The change must have occurred since the prior order. The modification also has to be in the child’s best interest. Both prongs must be satisfied for a court to grant the petition.
How the case gets built
We file modifications often. The pattern is consistent.
Step 01: We confirm the material change
The first conversation is about what changed and when. Your attorney needs three things on the table: what the prior order said, what is different now, and when the difference started. A change that predates the prior order is not a material change for modification purposes. It was already on the record when the court ruled.
Step 02: We test the change against the standard
Not every change is material and substantial. Ordinary life movement (a new job, a school change, a new partner) does not automatically clear the bar. Your attorney runs the change through the standard before drafting the petition. If the change is thin, we say so before filing.
Step 03: We build the best-interest argument
Best interest under Tex. Fam. Code § 153.002 is the controlling standard for all conservatorship decisions in Texas. The modification petition has to show not only that something changed, but that changing the order serves the child. The Holley factors are nine non-exclusive factors Texas courts apply per Holley v. Adams, 544 S.W.2d 367 (Tex. 1976): the desires of the child; the child’s emotional and physical needs now and in the future; emotional and physical danger now and in the future; the parental abilities of the individuals seeking custody; the programs available to assist them; the plans for the child; the stability of the home or proposed placement; acts or omissions indicating the existing relationship is not a proper one; and any excuse for those acts or omissions. They frame the argument.
Step 04: We file the petition
The petition pleads the material change with enough specificity to survive a special exception, and it asks for the relief that matches the change. A change in primary residence is one petition. A change in possession schedule is another. A change in support runs under a different statute entirely, Tex. Fam. Code § 156.401, and frequently moves on its own track.
Step 05: We request temporary orders if needed
If the change requires the court to act before final hearing (a parent’s relocation, a safety issue, a sudden income loss), your attorney files for temporary orders alongside the petition. Temporary orders set the rules of the road until trial.
Step 06: We position for resolution
Most modifications resolve before trial. The position your attorney takes in the first ninety days (what gets filed, what gets requested, what gets disclosed) determines what the resolution looks like.
What counts and what doesn’t
The statute is intentionally open-ended. Courts decide case by case. The following patterns recur.
| Often qualifies | Frequently does not, on its own |
|---|---|
| A documented relocation that changes the child’s school or week | A parent’s new dating relationship |
| A new medical or developmental need that requires a different schedule | A child preferring one parent’s house emotionally |
| A long-term job change that alters work hours or income | A short-term scheduling conflict |
| A documented safety or substance concern | A parenting disagreement that did not exist before |
| The child reaching age 12 and expressing a residence preference | The other parent remarrying |
| Voluntary relinquishment of primary care for six months or more | A parent moving within the same school district |
The right column is not a list of things courts ignore. It is a list of things that, standing alone, are not material and substantial changes under § 156.101. Combined with other facts, they can be part of a case. Alone, they are not.
Texas-specific considerations
The one-year window
If you are trying to modify the right to designate the child’s primary residence within one year of the prior order, the standard tightens. Tex. Fam. Code § 156.102 requires an affidavit alleging facts that support at least one of three grounds: endangerment, consent of the residence-holder, or six-month voluntary relinquishment. Without a sufficient affidavit, the court denies the petition without a hearing.
Inside the one-year window, your attorney drafts the affidavit before the petition. Outside the window, the petition leads.
County practice
Local standing orders vary from county to county. Where the case sits changes what is automatically restrained the day you file. Your attorney pulls the controlling standing order before any temporary-orders argument.
What is easy to miss
The procedural posture is the case. Whether your attorney files first, whether the petition seeks temporary orders, whether the request is narrow or broad: these decisions shape the record before either side argues anything on the merits.
A modification filed reactively, after the other parent filed first, runs on different procedural rails than the same modification filed proactively. The order of operations is part of the strategy.
By the time the consult comes to your attorney, they have read your file. They go to the answer.
FAQ
What if the other parent disagrees that something changed?
Most modifications are contested. The court decides whether a material and substantial change has occurred. Your attorney’s job is to make the change specific and provable enough that the court has the record it needs to rule.
Can a modification be filed by agreement?
Yes. If both parents agree to the change, the petition can be filed jointly or by one parent with the other’s signed consent. Agreed modifications still require court approval, but they move faster and cost less than contested ones.
How long does a modification take?
It depends on the county, the docket, the contested issues, and whether temporary orders are needed. An agreed modification moves on the shortest path. A contested modification with discovery runs much longer. Your attorney will map the realistic timeline for your county and your posture at the strategy consultation.
What does a modification cost?
Cost depends on whether the modification is agreed or contested, how much discovery is required, and how many hearings are needed. Your attorney will give you a written estimate after the strategy consultation.
Do I have to wait a year before filing?
Not necessarily. The one-year window in Tex. Fam. Code § 156.102 only applies to changes to the right to designate primary residence. Other modifications (possession schedules, decision-making rights, support) are not subject to the one-year rule.
If we are not the right fit, will you say so?
We will. The alignment review exists precisely so that fit gets decided before money changes hands. We do not take every case.