Inspectors have given Ashlawn School top marks in every possible area in one of the strongest reports seen for years.
Ofsted rated the school and sixth-form outstanding for achievement, teaching and learning, behaviour and leadership.
The report says that “students’ achievement has been impressive over a number of years”.
It adds that “attainment is consistently high” and that “students’ attitudes to learning and behaviour are absolutely first class”.
And the inspection team found that “students experience a very high proportion of teaching that is outstanding”.
Inspectors also recognised that Ashlawn has succeeded in achieving its ambition of effectively combining innovation with tradition.
Shona Walton, secondary learning improvement manager at Warwickshire County Council, said: “I have rarely seen such an impressive range of strengths highlighted in an Ofsted report.”
Cllr Heather Timms , the county councillor responsible for schools, said: “There are a number of extremely positive comments.
“It was pleasing to read about the innovative approach to learning in the school, the success in closing the gap in attainment and the pride students have in attending Ashlawn School.”
Wendy Fabbro, strategic director at Warwickshire County Council, said it was an impressive result.
“I’m sure all pupils and staff will be very proud of the achievement,” she added.
Headteacher Lois Reed said she was delighted with overall mark.
She said: “I would like to thank staff, students and parents for all their hard work which ensures that young people get an exceptional educational experience at Ashlawn School.”
She continued: “We are proud of the diverse social and cultural blend of our students, which reflects the character of our wider community.
“We promote excellence and aim to develop a love of learning.
“All the achievements and needs of our students are valued and our curriculum is designed to help develop students not only in terms of qualifications but also in terms of their skills.
“We seek to do this in a way which is enjoyed and subsequently inspires a lifelong love for learning.”
The school, in Ashlawn Road, has nearly 1,700 students, of which 377 are in the sixth form.
It became an ‘academy’ in 2011, giving it greater control over how it spends its money.
The inspectors visited in November, observing dozens of lessons, interviewing students and staff, scrutinising paperwork, checking students’ work and considering the views of parents.
‘Outstanding’ is the highest of four possible ratings for schools under Ofsted’s grading system.
See ofsted.gov.uk for the full report.