What is a variation of a child arrangements order?
A variation of a child arrangements order is a change made by the court to an order that is already in place. A child arrangements order, made under section 8 of the Children Act 1989, sets out where a child lives and how they spend time with each parent. Life moves on, and an order that fitted your family two years ago may no longer work. Rather than start again, you apply to change the existing order.
You use the same Form C100, choosing the option to vary or discharge the order. This is different from the first agreed order or contested proceedings that created the order. If the other parent is simply ignoring the order rather than the terms needing to change, that is enforcement, which is a separate process.
When can you apply for a variation order?
The court will consider a variation order where there has been a genuine, meaningful change in circumstances since the last order. It will not reopen an order simply because a parent is dissatisfied with it. Common reasons the court does accept include:
- One parent has moved, or plans to move, so the current arrangements are difficult to keep to.
- Your child's needs have changed as they have grown, or because of their health, schooling or wishes.
- A parent's work or personal circumstances have changed, so the timings no longer fit.
- New concerns about safety or abuse mean the current arrangement is no longer safe for your child or for you.
If you and the other parent both agree to the change, the court can often make the varied order by consent, without a contested hearing. Where you cannot agree, the court decides.
How the court approaches a variation
The court's first and paramount concern is your child's welfare, under section 1 of the Children Act 1989. It weighs the welfare checklist, including your child's needs and wishes, the likely effect of any change, and any risk of harm, and it applies the no-order principle, changing the order only where doing so is better for your child than leaving it as it is.
Because stability matters to children, the court looks for a real reason to disturb an existing arrangement. This is why it helps to set out clearly what has changed and why the change is in your child's best interests. We help you present that case properly.
Varying an order because it is no longer safe
Sometimes an order needs changing not because life has moved on, but because the current arrangement has become unsafe, for example where abuse has started or escalated, or where contact is putting your child or you at risk. This is a proper reason to apply, and the court has clear duties to take it seriously.
Where there has been domestic abuse, you are not required to mediate with the other parent, and the court must consider your safety under Practice Direction 12J, even on a variation. Where appropriate we raise safeguarding through the C1A form and ask for protective measures. For free and confidential support at any time you can call the National Domestic Abuse Helpline on 0808 2000 247. In an emergency always call 999. The points on this page are correct as at June 2026 and are a general guide, not legal advice on your situation.
The process, step by step
Varying an order follows a similar path to the original application, and is often quicker where the change is agreed. These are the main stages.
1. We assess the change and your options
We look at what has changed and at your history, including any abuse, and tell you honestly whether the court is likely to agree to vary the order and on what terms.
2. We deal with the MIAM or exemption
A MIAM is usually needed before applying to vary an order. Where there has been domestic abuse the exemption applies, so you are not required to mediate. We handle the paperwork and evidence.
3. We file the C100 to vary the order
We complete the C100, choosing to vary or discharge, set out what has changed, and where there has been abuse we raise safeguarding through the C1A form. Cafcass carries out its checks.
4. The court decides
If the change is agreed, the court can make the varied order by consent. If not, it hears the issues and decides what is best for your child, sometimes after a Cafcass welfare report.
How we help
Our family solicitors help you change an order that no longer works, whether the change is agreed or contested, with care for your safety throughout.
- 1
An honest first assessment
We listen in confidence, look at what has changed and at any abuse, and tell you whether an application to vary is likely to succeed and what to expect.
- 2
Handling mediation and exemptions
We deal with the MIAM requirement and, where domestic abuse applies, the exemption, so you are not pushed into mediating with someone who has harmed you.
- 3
Preparing and filing your application
We complete the C100 to vary the order, set out clearly what has changed, and raise any safeguarding concerns the court needs to see.
- 4
Representation to a varied order
We represent you through to a varied, sealed order, whether it is agreed by consent or decided by the court after a hearing.
What is included in our service
- A confidential assessment of what has changed and your prospects
- Advice on whether to vary by consent or through a contested application
- Handling the MIAM requirement and the domestic abuse exemption
- Completing and filing your C100 to vary the existing order
- Raising safeguarding and asking for protective measures where there has been abuse
- Representation through to a varied, sealed order
This work is usually privately funded, and we offer a clear fixed fee so you know the cost from the start. Legal aid for private children matters is limited. It is generally available only where there is evidence of domestic abuse or a risk of harm to a child, and it is means and merits tested. We will tell you honestly whether you may qualify and, where we cannot carry out legal aid work ourselves, help you find a provider who can. Any fee is set out clearly and in writing before any work begins, and there is no charge for an initial phone consultation.
Common questions
Last updated: June 2026.