The Rise School for four to 19-year-olds, which sits alongside the grounds of Feltham Community College on Browell's Lane, met the safeguarding arrangement requirements for children following an inspection in October this year.
The inspection was carried out after concerns were raised in an initial report over lack of safeguarding arrangements, poor leadership and management and inadequate personal development, behaviour and welfare of pupils.
Opened by Autism Schools Trust in September last year, the school currently has 34 pupils enrolled and each classroom was visited during the inspection.
Pupil behaviour had improved significantly with a drop in incidents from 146 in April to 32 in July and more serious incidents from 11 in April to zero in July, as well as only one absconder who did not leave the grounds.
A number of other problems have also been ironed out following a change in leadership with new head teacher Sarah Roscoe who took over after the previous head left in the summer.
Changes for the better include building security improvements, pupils safety, brighter classrooms to enhance learning, a safeguarding role and training for staff in issues related to special educational needs and challenging behaviour.
A rewards and penalty system has been introduced rather than excluding a pupil when they display challenging behaviour and the school has found that making them attend ‘afternoon school’ until 6pm is more likely to deter them from repeating the behaviour.
More activities on the curriculum such as karate lessons and new associate leaders such as a consultant supports the school’s development.
Ms Roscoe is preparing a school improvement plan to identify priorities for the coming year and actions to address these.
Her Majesty’s Inspector Gaynor Roberts said: "Everyone I spoke to during the inspection remarked on the significant improvements in pupil behaviour that have resulted from new systems and structures that have been implemented.
"Leaders have introduced three core rules for which pupils receive points in each lesson: be safe, be respectful and be polite.
"This revised system has ensured that expectations are higher and pupils understand where the boundaries lie."