Neurodevelopmental disorders, such as Cerebral Palsy (CP), Attention-Deficit/Hyperactivity Disorder (ADHD), Autism Spectrum Disorder (ASD), are complex conditions that affect various aspects of children's development. Despite advancements in treatments, conventional rehabilitative interventions tend to focus on specific aspects, often overlooking the holistic needs of the patient. Many of these interventions fail to engage children, who may feel uninvolved or demotivated. Innovative technologies, such as immersive virtual reality (IVR), offer a promising alternative to make rehabilitation more engaging and comprehensive. This study aims to evaluate the effects of IVR-based rehabilitation on children and adolescents with neurodevelopmental disorders, focusing on improvements in cognitive, motor, and social functions. We hypothesize that IVR will enhance social interaction, attention, motor skills, and overall quality of life. The study will include children and adolescents aged 8 to 18 years, diagnosed with ADHD, ASD, and cerebral palsy. The CAR-EN platform, which provides a highly customizable therapeutic environment, will be used. Assessments will measure cognitive, motor, and social skills before and after the intervention. We expect immersive virtual reality to lead to significant improvements in the participants' cognitive, motor, and social abilities. These findings could potentially contribute to a shift in therapeutic guidelines, offering more effective treatments for children with neurodevelopmental disorders.