Ranking · Turkey · Ankara
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Özel Büyük Kolej

Турция Ankara, Turkey · est. 1986 · Private
Illustration · Ankara
73.8#9 in the country
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A private school in the Gaziosmanpaşa district of Ankara. The family's work in education began with Büyük Dershane, founded in 1951, and the school itself took its first primary and middle school pupils in the 1986-1987 academic year. After the high school section was added, the school left Maltepe for Gaziosmanpaşa, where preschool children and first graders have a building of their own. The school belongs to the Doğay family: the board is chaired by the founder's son and the library carries the name of the founder, Hikmet Doğay. The school says it has been built on the model of international schools, and names that as the reason it joined CIS. A second campus stands in İncek.

Key facts

Tuition
Price on request
Programmes
Cambridge · Primary · AP · National programme
Languages of instruction
Turkish
Languages taught
English
School website
About the fees Fees are published as a separate price list for each campus, with meals and transport charged as separate services. Scholarships are awarded on LGS results, and the discount rates are published alongside the enrolment conditions.
Admissions Enrolment runs through a section of its own: the school lists the documents required, takes registrations for the summer school and for courses, and publishes enrolment conditions together with scholarship rates based on the national LGS examination. Academic scholarships have a page of their own.
Stages and year groups Levels: preschool, primary school, middle school, high school and a separate science high school, Büyük Fen Lisesi, opened in 2011 for pupils identified as gifted in science.
Address Bağlar Caddesi No: 184, 06700 Gaziosmanpaşa, Ankara

Accreditations and programmes verified against official registries

CIS · accreditationCambridge · Primary · authorised programmeCollege Board · authorised programme
The school is listed in the CIS registry as accredited and in the Cambridge examination centre registry. It was accredited by the Council of International Schools in 2000 and says it was the first school in Ankara accredited across all levels from preschool to high school. The Cambridge Primary programme runs in the primary school. The school does not publish its Cambridge centre number. The school's second registry side is the College Board AP Course Ledger for the 2025-2026 academic year, where it stands as Buyuk Kolej GOP Campus with centre code 696386. The school does not give that centre number on its own pages.
school is in an official registryconfirmed by a school document, by membership or by taking part in a networkclaimed by the school, no confirmation, not counted in the scoreGuide to all organisations →

What stands behind each entry

CISCouncil of International Schools

It accredits international schools and is a paying association at the same time. It examines governance and ownership, the curriculum, teaching, student wellbeing, staff and premises; a team of volunteers from other CIS accredited schools visits the school. Membership and accreditation are different things here, and schools confuse them more often than anything else.

What the badge means for this school. The school has been through this organisation's accreditation. It was judged as a whole: governance, safeguarding, staff, premises, teaching. The entry stands in the organisation's public register - anyone can check it.

Register to check for yourself, and the full guide →
CambridgeCambridge International Education

Part of the University of Cambridge. It allows a school to teach the Cambridge programmes and to enter pupils for the exams. There are four stages and they are authorised separately: primary, lower secondary, IGCSE and A Level. If the stages are known they are named in the line below; if that line is missing, the school does not publish them, and the Cambridge registry does not show stages either - it gives only the name of the centre, the country and whether private candidates are accepted. Cambridge calls what it does registration rather than accreditation, and the network holds about ten thousand schools.

What the badge means for this school. The school is allowed to run this programme and to award its certificate. This is a confirmation of the programme, not a judgement on the school as a whole. The entry stands in the organisation's public register - anyone can check it. At this school: Primary (ages 5-11). Primary is the primary stage, ages 5 to 11: English, mathematics and science to Cambridge syllabuses. At the end of the stage a school may run the optional Checkpoint test, which is marked in Cambridge.

Register to check for yourself, and the full guide →
College BoardCollege Board, the AP programme

An American organisation that allows a school to put the letters AP on a pupil's transcript. The permission is granted course by course and tied to a particular teacher, it has to be renewed every year, and College Board reads the course syllabus before granting it.

What the badge means for this school. The school is allowed to run advanced AP courses - not the school as a whole, but one by one: by subject and by teacher. Governance, safeguarding and the primary years are not part of that check. Which subjects are actually approved is visible in the ledger. The entry stands in the organisation's public register - anyone can check it.

Register to check for yourself, and the full guide →
AP

Advanced Placement: American advanced courses for the senior years. The exam for a course is set and marked by the College Board, not by the school. A good result is counted by American universities as a first-year course already passed, which saves a student time and money.

What this means for this school. A school does not get to call a course AP automatically: the College Board reads the course syllabus and approves it separately for every subject and every teacher, and the permission has to be renewed each year. Every approved school in the world is listed in the open AP Course Ledger, and this school's entry there stands as a line in the accreditation block above. How many courses a school is approved for, and in which subjects, the ledger does not show in its general listing. AP has no leaving certificate of its own: it sits on top of the school's main programme rather than being a separate system.

National programme

The state school programme of the country the school stands in: it is set by that country's ministry of education, which also licenses the school and awards the leaving certificate. That certificate is used for entry to local universities, and abroad it is matched to the local one.

What this means for this school. This entry does not count towards the score, and that is deliberate. Every lawful school in a country works to the national programme, so on its own it tells one school apart from no other - unlike the French, German or Russian programmes, which are carried abroad and confirmed by the register of their organisation. We show it because a parent needs to know what programme their child is taught and what certificate the child will get. Counting it would lift the whole ranking at once and still tell nobody apart.

Exams and destinations from the school's official website

The school publishes nothing about where its leavers go: no share going on to university, no exam results, no list of universities.

Facilities from the school's official website

Swimming pool
Sports hall
Laboratories
·Theatre or assembly hallnot stated on the website
Library
Catering
School transport
·Boardingnot stated on the website
Campus: The Gaziosmanpaşa campus was built for the school: modern classrooms, an indoor sports hall, a semi-olympic swimming pool and laboratories, with the preschool group and the first grade in a building of their own.

Teaching staff

The school publishes neither the number of its teachers nor their qualifications.

Safety and wellbeing from the school's official website

·CCTVnot stated on the website
Security staff
·Access controlnot stated on the website
Nurse or medical room
Counsellor
·Child protection policynot stated on the website
·Staff trainingnot stated on the website
·Anti-bullying policynot stated on the website

Reviews

No reviews yet. The community rating counts towards the score once a school has five verified reviews - until then we do not show a zero, so as not to mislead.

Criteria breakdown criterion weight in brackets

Academics and programmes (16%)
75
Community rating (16%)
no dataparent reviews are needed: the criterion switches on at the fifth verified one
Exams and destinations (12%) scored on disclosed data
55
Safety and wellbeing (12%) scored on disclosed data
75
Accreditation and verifiability (10%)
95
Teaching staff (10%) scored on disclosed data
55
Facilities (10%) scored on disclosed data
90
Clubs and activities (8%) scored at the median
70
Value for money (6%) scored at the median
80
"Scored on disclosed data" stands where we count only what the school has written about itself on its own site: exams and destinations, safety and wellbeing, teaching staff, facilities, clubs and activities. A low score here means the school does not write about this, not that the school does not have it: a school with good security and a sparse site will score low. A school can fill in its profile, and the score will be counted again.
The score is counted from 6 of the 9 criteria.Only those with checkable data count: programmes and accreditations from official registers, the fee from a published price list. Where it says "scored on the median", the school has no data and the middle of the list is put in its place, so that a gap gives no advantage. Admissions, teaching staff and reviews come in as their data arrives. The full methodology →

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