The headteacher of Mandeville School in Aylesbury has announced he will retire from the role next month after 17 years at the helm.
Peter Patchett has overseen huge changes at the school, including a doubling in the number of pupils and moving out of special measures.
The 57 year old has also been instrumental in a £5 million building programme which has just begun.
He said he feels it is the right time to go, but will remain involved in education through providing support to schools.
Mr Patchett said: “It has been a real pleasure working with the students.
“I have worked with some fantastic teachers and loved every singly minute of it.
“One of the things I’m most proud of is the role of the school in the community.”
This year’s GCSE results are predicted to be the best the school has ever achieved and Mr Patchett said he feels he is leaving it in a good position for a new person to take over.
An interim headteacher will take over for a year while a permanent appointment is found.
Malcolm Webber, the school’s chair of governors, thanked Mr Patchett for his hard work and his ‘guidance, support and friendship’ over the years.
Mr Patchett became headteacher in September 1997. He will leave the job on August 31.