Warning notices were issued to 11 Strictly Orthodox independent schools by the Department for Education in 2023.
Notices follow a critical inspection and require the school to produce an action plan to remedy the failings identified by Ofsted.
If schools fail to make improvements, they can face restrictions on admitting new pupils or even closure.
However, last year’s figure for Charedi schools marks a drop from the 18 that received warnings from the DfE in 2022.
