Quick Answer: California law does not use the term "full custody." Courts award legal custody (decision-making) and physical custody (where the child lives), either jointly or solely, based on the child's best interest. To obtain sole custody, a parent generally has to show the court that it serves the child's health, safety, and welfare better than a shared arrangement. Courts weigh the factors in Family Code section 3011, including any history of abuse or substance abuse, alongside the policy of frequent and continuing contact with both parents in section 3020. A domestic violence finding triggers a statutory presumption against custody under section 3044.
"Full custody" is one of the most searched custody phrases, but it means different things to different parents. Some want sole decision-making. Some want the child living with them most of the time. Some want the other parent's time supervised. Clarifying which one you actually need is the first step, because each requires different proof.
Legal Custody vs. Physical Custody
Joint legal custody (Family Code section 3003): both parents share the right and responsibility to make decisions about the child's health, education, and welfare.
Sole legal custody (section 3006): one parent has that right and responsibility.
Joint physical custody (section 3004): each parent has significant periods of physical custody, arranged to assure frequent and continuing contact with both parents.
Sole physical custody (section 3007): the child lives with and is under the supervision of one parent, subject to the court's power to order visitation.
A parent can have sole physical custody while legal custody stays joint, and that combination is common. Our post on joint legal and physical custody explains the combinations in more detail.
The Standard: Best Interest of the Child
Family Code section 3011 directs the court to consider, among other relevant factors:
the child's health, safety, and welfare;
any history of abuse by a parent against the child, the other parent, or certain others;
the nature and amount of contact with both parents; and
a parent's habitual or continual illegal use of controlled substances, or habitual or continual abuse of alcohol or prescribed controlled substances.
Section 3020 states California's policy that children should have frequent and continuing contact with both parents unless that contact is not in the child's best interest, and that the child's health, safety, and welfare come first. Section 3040(e) establishes neither a preference nor a presumption for or against joint or sole custody. Sections 3011(b) and 3040(c) bar the court from considering a parent's sex, gender identity, gender expression, or sexual orientation. Our post on the best interest of the child covers the standard in depth.
When Is Sole Custody More Likely?
Each case turns on its facts, but sole custody is more often ordered when the evidence shows:
Domestic violence. If the court finds a parent perpetrated domestic violence within the previous five years against the other parent, the child, the child's siblings, or certain others, Family Code section 3044 creates a rebuttable presumption that awarding that parent sole or joint legal or physical custody is detrimental to the child.
Child abuse or neglect supported by credible evidence.
Substance abuse that affects parenting, which may lead to testing or supervised visits.
Serious, untreated mental health concerns that affect the child's safety.
A parent's absence or disengagement from the child's life.
An inability to make decisions together, where joint legal custody would leave the child's needs unaddressed.
Family Code section 3027.1 allows sanctions against a person who makes a child abuse accusation in a custody case knowing it is false. Allegations must be honest and supported.
How to Build the Record
Courts decide custody on evidence, not labels. A useful record often includes:
school attendance and communication records;
medical and therapy records, obtained properly;
co-parenting app messages that show tone and responsiveness;
a calendar of actual parenting time compared with the ordered schedule;
police reports, child protective services involvement, or prior protective orders, if any; and
witnesses with first-hand observations, such as teachers, coaches, and providers.
Our post on building a custody record against a high-conflict parent goes deeper. Judges notice the difference between documentation and surveillance, so keep the focus on the child.
The Process, Step by Step
Step 1: File a request. In a divorce or parentage case, you ask for custody orders on form FL-300, Request for Order, with a declaration explaining the facts and, ideally, a proposed parenting plan.
Step 2: Attend mediation. Under Family Code section 3170, the court must send contested custody and visitation issues to mediation. Some counties use Child Custody Recommending Counseling, where the counselor may make a recommendation to the judge. Others, including San Francisco, use confidential mediation in which the mediator does not make a recommendation.
Step 3: Evaluation, if needed. In complex cases the court may order a custody evaluation under Evidence Code section 730 or Family Code section 3111, or appoint counsel for the child.
Step 4: The hearing. The judge considers the declarations, any counselor's report, and testimony. Under Family Code section 3042, a child 14 or older who wishes to address the court must be allowed to, unless the court finds that doing so is not in the child's best interest and states its reasons.
Emergency Custody Orders
If a child faces immediate harm, or there is an immediate risk the child will be taken out of California, a parent can ask for emergency orders on an ex parte basis. Family Code section 3064 limits ex parte custody orders to those situations. Immediate harm includes recent or ongoing domestic violence or sexual abuse of the child, and in deciding whether that showing has been made, the court must consider a parent's illegal access to firearms and ammunition. Requests need specific, recent facts.
What Sole Custody Does Not Do
Sole physical custody does not usually end the other parent's relationship with the child. Under Family Code section 3100, the court grants reasonable visitation unless visitation would not be in the child's best interest, sometimes with supervision. Child support is still set by the guideline, and custody orders can be modified later if circumstances change significantly.
Key Takeaways
Keep a Parenting Calendar
Record each visit, exchange, and missed day as it happens, because dated notes carry more weight than memory.
Communicate in Writing
Use a co-parenting app or email so the court can see the tone, the offers, and the responses.
Prepare for Mediation
Bring a proposed schedule and focus on the child's routine, not on the other parent's flaws.
Avoid Self-Help
Withholding the child without a court order can badly damage your credibility with the judge.
Frequently Asked Questions
What is full custody called in California? California uses "sole legal custody" and "sole physical custody." What people call full custody is usually one or both of these.
How hard is it for a father to get full custody in California? The law is gender neutral. Sections 3011(b) and 3040(c) prohibit the court from considering a parent's sex or gender identity, and the same best-interest factors apply to every parent.
Can I get full custody if the other parent is not involved? A parent's lack of involvement is relevant to the best-interest analysis, and courts look at the actual history of care. The other parent is still generally entitled to notice and an opportunity to be heard.
Will my child's preference decide custody? If the child is of sufficient age and capacity to form an intelligent preference, the court must consider and give due weight to the child's wishes under section 3042, but those wishes do not decide custody on their own.
If you believe sole custody is right for your child, the strength of your evidence and how you present it matter from the first filing. To talk with Attorney Michael Geller about your situation, call The Geller Firm at 415-840-0570 to schedule a consultation.