Debby Lipkin, the executive headteacher drafted in by JFS to restore its educational reputation last spring, has agreed to remain longer at the school than previously planned.

Parents were told by Ruth Renton, the chairman of governors, that Mrs Lipkin, who had led the school with “distinction and tireless dedication”, would stay beyond August this year.

In December, Ofsted inspectors awarded the school, in north-west London,  a “good” rating, following the shock of two years earlier when it was downgraded from an outstanding school to one requiring improvement.

Mrs Lipkin, a turnaround specialist, took over the reins in May with deputy head Simon Appleman moving to the role of acting headteacher.

The governors believed “the current JFS leadership arrangements will provide the required stability and expertise as we enter this exciting and interesting period,” said Mrs Renton, who became chairman at the start of the school year.

Parents were warned they may face a rise in voluntary contributions - currently made for Jewish studies - because of a drop in local authority funding.

But other options under consideration would include an increase in fundraising which began with last September’s gala dinner.