Sibling priority is one of the most common oversubscription criteria, but the details vary by school and council. This guide explains what usually counts, what does not, and how to plan realistically when you have more than one child to place.
What “sibling priority” usually means
Most state schools give some priority to applicants who already have a brother or sister attending the school at the time of admission. The exact definition of “sibling” varies — some councils include step-siblings, half-siblings and children living permanently at the same address; others do not.
Sibling priority is normally ranked below looked-after children and, at many schools, below faith or medical criteria — so it is rarely an automatic guarantee even when it applies.
A sibling link usually helps, but check exactly where it sits in the published order of criteria.
Common situations that catch parents out
Sibling priority normally depends on the older child still being on roll on the date the younger child would join — so if an older sibling is due to leave the same year (for example, moving from Year 6 to secondary), check whether that still counts under local rules.
- Blended families: confirm whether step- or half-siblings living at the same address are included.
- Twins and multiples: ask how the school allocates a place if it can only offer one under standard rules.
- House moves: sibling priority is usually tied to your address at the time of application, not history.
Planning applications for more than one child
Every child needs their own application in the correct year, even if you plan to rely on an older sibling’s place. Missing this step, or assuming a place is automatic, is one of the most common avoidable mistakes.
If you are considering a house move or a change of school for an older child, think through how it could affect a younger child’s sibling priority in future years before you commit.
- Diary each child’s application year separately — do not assume the same process date applies.
- Ask whether sibling priority is honoured across a school’s different sites or year groups, if it has more than one.
- Keep evidence of address and relationship ready in case it is requested.
If a sibling place is not offered
A sibling link does not guarantee a place if a school is heavily oversubscribed at a higher-priority category, such as looked-after children or medical need. If this happens, the waiting list and appeal process work the same way as any other admissions decision.
- Check the exact sibling definition used by the school or council, in writing.
- Confirm your older child will still be on roll on the relevant admission date.
- Apply separately and on time for every child, even if a sibling place feels likely.
- Keep address and relationship evidence ready in case it is requested.
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