A Chasidic school in Stamford Hill has now met independent school standards it previously failed to meet, Ofsted said.
Beis Aharon, which has more than 280 pupils from the Belz community aged from three to 13, is now allocating more time to secular subjects after inspectors previously said it was teaching too little of them.
Ofsted noted improvements after “significant changes of leadership”.
Whereas the school had previously been criticised for teaching too little abut other faiths and cultures, inspectors found on a recent visit that pupils could talk about why Ramadan was important to Muslims and had learned about the different ways of commemorating the Chinese New Year.