The short answer
ADEK rates Abu Dhabi private schools on six bands: Outstanding, Very Good, Good, Acceptable, Weak and Very Weak. At the most recent published results, 13 of 204 schools were Outstanding, 51 Very Good, 93 Good, 42 Acceptable and 5 Weak. Inspections run on a two-year cycle with about half the sector visited each year, so the rating shown for any given school may be up to two years old.
Abu Dhabi private schools are inspected by the Department of Education and Knowledge (ADEK) under a programme called Irtiqa’a, and given one of six ratings. This guide explains what each band means, how rare each one actually is, and, just as usefully, the things a rating cannot tell you. If your school is in Dubai, the regulator is KHDA and the rules differ, so read the KHDA ratings guide instead.
The six rating bands
Inspectors assess six performance standards across 17 indicators, covering achievement, personal development, teaching, curriculum, student protection and leadership, then award one overall rating:
| Rating | Schools | Share of the sector |
|---|---|---|
| Outstanding | 13 | 6.4% |
| Very Good | 51 | 25.0% |
| Good | 93 | 45.6% |
| Acceptable | 42 | 20.6% |
| Weak | 5 | 2.5% |
| Very Weak | 0 | 0% |
| Total inspected | 204 |
If you want the names rather than the proportions, the Outstanding-rated schools in Abu Dhabi are listed in full, with the date each rating comes from and how to confirm a school still holds it.
How old is the rating you are looking at?
This is the question almost nobody asks, and it changes how much weight a rating deserves. Irtiqa’a runs on a two-year cycle, with roughly half of Abu Dhabi’s 200-plus private schools inspected in any given year. The rating displayed on a school’s plaque, its website and the ADEK listing is the result of its last visit, which may have been up to two years ago.
Two years is long enough for the things that actually drive quality to change completely. A principal can leave. A strong head of secondary can be replaced. A school can expand by two year groups and dilute the staffing that earned the rating. None of that is reflected until the next inspection. Always check the date of the report, not just the grade.
The direction of travel matters more than the snapshot. A school that moved from Acceptable to Good is improving and being led well. A school that has held Very Good across two cycles is stable. Those two facts are more useful than the single word on the plaque, and both are in the report.
What a rating does not tell you
The rating is one judgement for an entire school, often covering FS1 through to Year 13. Your child will attend one phase of it.
- A school can be strong in primary and ordinary in secondary, or the reverse, and still carry one overall grade. The full report breaks performance down by phase and by subject. That detail is the part worth reading.
- It does not measure whether your particular child will be happy there, whether the commute is survivable, or whether the parent community suits you.
- It says little about class sizes, staff turnover or how long the leadership team has been in post, all of which a tour and a conversation will tell you faster.
- It is not a ranking. Thirteen schools share the Outstanding band and they are not interchangeable.
Where to check a school’s rating
Since 2024 every Abu Dhabi private school has had to display a performance plaque at its entrance showing its Irtiqa’a result alongside the National Identity Mark, so the rating is visible on any school tour. You can also look it up before you visit, through the school finder on tamm.abudhabi, on ADEK’s own website, or in the Rayah parent app.
Ask the school for the full inspection report rather than the headline grade. A school confident in its report will hand it over.
Does the rating affect what the school can charge?
Yes, and this is the part with real money attached. Fee increases in Abu Dhabi require ADEK approval, and the permitted increase is tied to the school’s Irtiqa’a rating through an education cost index, with higher-rated schools allowed to apply for more. The full mechanism, the current fee ranges at British curriculum schools and the approval conditions are covered in the Abu Dhabi school fees and ratings guide.
A rating is also not a price signal. Fee and grade correlate loosely at best, and there are Outstanding schools in Abu Dhabi charging less than half what some Very Good ones do.
How many Abu Dhabi schools are rated Outstanding?
Thirteen, out of 204 inspected, at the most recent published results. That is 6.4% of the sector, so Outstanding is genuinely rare rather than a grade most good schools reach.
Is a Good rating bad?
No, but it is average for Abu Dhabi. Good is the third of six bands and 77% of schools are rated Good or better. It means the school meets expectations comfortably; it does not distinguish it from most of the sector.
How often are Abu Dhabi schools inspected?
On a two-year cycle, with about half the sector inspected each year. A published rating can therefore be up to two years old, which is why the date of the report matters as much as the grade.
What is the lowest rating a school can get?
Very Weak is the bottom of the six-band scale. At the most recent results no Abu Dhabi private school held it, and 5 were rated Weak. Schools rated Acceptable or lower face restrictions on growing enrolment or adding year groups until inspectors verify improvement.
Is ADEK the same as KHDA?
No. ADEK regulates Abu Dhabi, Al Ain and Al Dhafra. KHDA regulates Dubai. They run separate inspection programmes and separate fee rules, though both use six-band scales with the same names.
Sources
Facts in this guide come from public, verifiable sources. Fees and ratings change: always confirm directly with the school or regulator before making a decision.