Grammar School Catchment Areas Explained

In short

• Catchment grammars allocate places largely by distance among children who have passed, while super-selectives rank purely by score regardless of where a family lives.
• 'Qualified but not offered' is a real and common outcome: passing the test does not guarantee a place at an oversubscribed catchment school.
• Priority-distance limits shift year to year with demand, so no fixed catchment radius can be promised in advance — treat published distances as approximate.
• For catchment schools, where you live can matter as much as the test score, which makes checking each school's oversubscription criteria essential before applying.
• Relocating to be nearer a school carries real risks, including moving-date rules and changing catchment sizes, so research thoroughly before committing.

Catchment versus super-selective: what's the difference?

The single most important distinction in grammar school admissions is between catchment schools and super-selective schools, because they reward completely different things. A catchment grammar first checks that a child has met a qualifying standard in the 11+, and then, when there are more qualified children than places, allocates the places largely by how close the family lives — often measured as a straight-line distance to the school. A super-selective, by contrast, ranks all qualified children by their score and offers places to the highest scorers wherever they live, giving distance little or no role in the main allocation. Our super-selective grammar schools explained guide covers that model in depth, and areas like Sutton illustrate it. Knowing which model a target school uses should shape both your preparation intensity and your choice of where to apply.

How does priority by distance actually work?

In a catchment or distance-priority grammar, admissions authorities typically apply the school's oversubscription criteria in order once the pool of qualified children is known. After any specific priority groups — such as looked-after children or, at some schools, those eligible for the pupil premium — remaining places are commonly offered to qualified children living nearest the school, measured as a straight-line distance from home to a fixed school point. The consequence is a 'furthest distance offered' that emerges each year from that year's applicants rather than a fixed boundary printed in advance. Because it depends on how many qualified children apply and where they live, this effective radius can shrink or grow year to year, and it should always be treated as approximate. Parents should read the exact wording of each school's criteria carefully, since the details of how distance is measured and where priority groups sit can differ meaningfully between schools.

What does 'qualified but not offered' mean?

One of the hardest lessons for families new to the 11+ is that passing the test does not guarantee a place. At an oversubscribed catchment grammar, a child can comfortably reach the qualifying standard and still not receive an offer, simply because other qualified children live closer to the school. This 'qualified but not offered' outcome is common and entirely normal in high-demand areas, and it catches out families who assume a pass is the finish line. The practical response is to plan around it from the start: understand roughly how far the school has reached in recent years, be honest about where your home sits relative to that, and keep realistic alternatives on your application. If your child qualifies but is not offered a place, the waiting list and, in some cases, an appeal become the parallel routes — see our guide to 11+ appeals for how those work.

Why does catchment matter as much as the score?

For a catchment grammar, the test score and your home address are two halves of the same decision, and neglecting either can be costly. A very high score does little for a family living beyond the effective distance a school has reached in recent years, while a modest but qualifying score can be enough for a family living close by. This is why sensible planning starts with a clear-eyed look at both dimensions together rather than obsessing over marks alone. It also explains why the same child might be a strong candidate at a nearby catchment school and a long shot at a distant one. Families in mixed areas — where catchment grammars and super-selectives sit side by side — often prepare for both but weight their expectations by geography. Our regional pages, such as Kent and Bexley, set out the local admissions picture school by school.

Should you relocate to be nearer a school?

Some families consider moving closer to a preferred grammar, and while this can improve the odds at a distance-priority school, it carries real risks that deserve careful thought. Effective catchment distances change year to year, so a move that looks safe on last year's figures may not be by the time your child applies. Admissions authorities also scrutinise the address used on an application, and many have rules about the date by which a family must be genuinely resident, as well as safeguards against temporary or second-address tenancies used solely to gain priority. Renting or buying near a school is a significant financial commitment made against an uncertain outcome, and it does nothing to help at a super-selective, where distance is not part of the ranking. If you are weighing a move, research the specific school's rules thoroughly, look at several years of distance data rather than one, and keep alternative options open.

Do all grammar areas work the same way?

It is worth stressing that admissions models vary considerably from area to area, so lessons from one region do not transfer neatly to another. Some counties are dominated by catchment or distance-priority grammars, others by super-selectives that ignore distance entirely, and many areas contain a mix of both, sometimes within a short drive of each other. Even the way distance is measured, the priority given to particular groups, and whether siblings receive preference differ between schools. This is why generic advice can mislead, and why the only reliable source is each school's own admissions policy for the year your child will apply. Neighbouring boroughs can sit at opposite ends of the spectrum: the Kingston Tiffin schools weigh distance among qualified children, whereas the nearby Sutton super-selectives rank purely on score. Map the specific model of every school on your list before deciding where preparation and, if relevant, location should be focused.

How to use catchment information when choosing schools

The practical takeaway is to treat catchment as a core input to your school shortlist, not an afterthought. Before committing to a preparation plan, confirm for each target school whether it is catchment-based or super-selective, read its oversubscription criteria in full, and look at how far it has typically reached in recent years while remembering those figures are approximate and shift with demand. Aim for a balanced list that mixes a realistic catchment option with any aspirational super-selective, so a strong score has somewhere to land. Our guide to applying to multiple schools helps structure that list, and 11+ results, what happens next explains how offers, waiting lists and appeals unfold after testing. To get an honest sense of where your child currently stands across the four subjects — the score half of the equation — start with the free diagnostic.