Ofsted have made changes to the inspection time frames with the following effective immediately, they are:
extending the usual timeframe within which good schools receive a short inspection from approximately 3 to 4 years. The maximum period in which Ofsted would return remains the statutory 5 years from the end of the academic year of the previous inspection, as at present for schools
aligning the re-inspection window for requires improvement, serious weakness and special measures schools to up to 30 months (from 30, 18, and 24 months, respectively)
Ofsted say they are making the changes to give their regional directors greater discretion about the date of re-inspection and thishis will allow them to reflect the circumstances and progress of the schools in question.
Full details are included at: