Rivers Academy West London, an Aspirations Academy since 2013, has passed the intense inspection with flying colours and moved up from a 'good' school, in 2012, to an 'outstanding' academy.
Formerly known as Longford Community School, in its 80-year history this is the only time it has achieved the highest possible grade.
Principal Paula Kenning said: “The entire team of staff and governors are exceptionally proud of the tremendous hard work that has led to this fantastic outcome.
“The report reads incredibly well and is testament to the exceptional learning and achievement that takes place in our academy every day.
“We are particularly proud of the way that Ofsted describe our students – citing them as extremely polite and courteous and very eager to talk about their school.
“Their behaviour is described as exemplary in the report.”
The mixed secondary school has 1,100 pupils aged 11-18.
It's overall rating was made up of a top grade in every category apart from its sixth form provision which received a 'good' rating, which was the only area the school has been noted to make improvements.
The principal and teaching staff were labelled 'outstanding' for improving the quality of teaching and making sure work is marked regularly and comments are acted upon.
Students behaviour is “exemplary” and pupils are encouraged to believe they can achieve high standards, the report said.
There is an excellent support system in place and pupils know who to go to if they have a problem, it added.
The number of students attaining five or more A*-C grades, including English and maths, is above average, however there is room for improvement in the sixth form where A level grades have been below the national average.
The inspection took place between March 18 and 19 and the results were announced on April 23.
The Aspirations Academies group are set to open Space Studio West London on the Rivers Academy campus in September this year.
It will be a small school for 14 to 18-year-olds specialising in science and maths and the fourth in the Aspirations Academies West London portfolio following Oak Hill Academy in Feltham and Oriel Academy in neighbouring Hanworth.