Clore Shalom, the cross-communal primary in Shenley, says it has enjoyed a 30 per cent improvement in Sats results over the past two years.
This summer 80 per cent of children left school having achieved the expected standard in reading, writing and maths - compared with 52 per cent in 2017.
Since the arrival of its new headteacher, deputy head and assistant head over the past two and a half years, the schools says it has moved from below average in 2017 to well above it.
Headteacher Karen Cohen said, “It has been a tough couple of years, but these results are testament to the hard work that has been put in by the entire teaching staff and the pupils themselves.