Hounslow's secondary schools are the best in the country, but their primary schools are the second worst in London, according to a new league table.
The borough is one of just five in the capital with 100 per cent of their schools rated 'good' or 'oustanding' by Ofsted.
However, only 69 per cent of its primary schools have achieved one of the top two grades, an annual report published yesterday by the inspection agency shows.
That puts it 31st out of 32 London boroughs and 139th nationally. Hounslow Council says since the table was compiled the percentage has improved to 77, though this would still put it joint 28th in the capital and 107th in the country.
While secondary schools in Hounslow maintained their perfect record from last year, its primaries slipped by seven percentage points according to the table - though, based on the latest figures they have actually improved by one per cent.
All schools are given a rating of one to four by Ofsted, with one being 'outstanding', four 'inadequate' and three 'requires improvement'.
Elsewhere in west London, Kensington and Chelsea, and Westminster both scored 100 per cent for their secondary schools.
The former got 94 per cent for primaries, following an annual rise of 15 percentage points, making it the third best in London and seventh nationally.
Brent was bottom of the secondaries table, with 63 per cent - down a whopping 23 percentage points on last year - but its score for primaries was up 11 percentage points to 87 per cent.
Hammersmith and Fulham also recorded a sharp fall of 19 percentage points for its secondary schools, 81 per cent of which are now rated 'good' or 'outstanding'.
The report reveals London has the best GCSE results in England and outperforms the rest of the country in terms of pupils' progress at primary and secondary schools.
But it raises concerns about the success of the capital's children in care, who it says are a third as likely as their peers to achieve five or more good GCSEs including maths and English.
The report highlights the achievements of a select few 'outstanding' schools.
Burlington Danes Academy, in Hammersmith and Fulham, is praised for the way teachers regularly observe each others' lessons to help improve on their weaknesses.
The Sacred Heart Language College, in Harrow, is heralded for challenging and supporting the brightest children.
Berkeley Primary School, in Cranford, is recognised for working with the council and nearby Cranford Community College to go from 'requires improvement' to 'outstanding' in the space of two years - an improvement since matched by Beavers Community Primary School, in Hounslow West.
Berkeley's executive headteacher Kevin Prunty said: "Berkeley's rapid improvement to achieve 'outstanding' grades in every aspect of the Ofsted framework is virtually unparalleled nationally.
"It confirms that high performing academies, clusters of schools and local authorities can collaborate effectively to ensure every child has access to good and outstanding education.
"Berkeley has benefited from strong leadership, high quality support, uncompromising expectations and high ambition and the staff and pupils in the school now continue to excel with renewed confidence and aspirations."
Councillor Tom Bruce, Hounslow's cabinet member for education, said: "Hounslow Council pledged to invest in education to ensure brighter futures for our children and provide a better choice of schools for local children, and this recognition is evidence of us fulfilling that commitment.
"Although recent figures show the situation for our primary schools is improving we will not rest until they are among the best in the country just as our secondary schools are."
HOW ARE SCHOOLS PERFORMING WHERE YOU LIVE?
|Borough||Primary schools||Secondary schools|
|National rank||Per cent 'good' or 'outstanding'||Change from 2013 (per cent)||National rank||Per cent 'good' or 'outstanding'||Change from 2013 (per cent)|
|Hammersmith and Fulham||56||85||-4||55||81||-19|
|Kensington and Chelsea||7||94||+15||1||100||0|