Every Child Matters

Nestled in Dehiwala, The Tree House International is Sri Lanka's first and only international institution exclusively dedicated to children with special needs. Founded and led by the renowned Dr. Anton James and Ms. Chrystal Honsaker (CJ), our school stands as a symbol of excellence and innovation in specialised education.
Why Choose The Tree House International?
We are redefining special needs education in Sri Lanka through our innovative and evidence-based approach. Combining the best elements of British and American pedagogy, we create a transformative educational experience designed to meet the unique needs of every child.
Here is what sets us apart:
Comprehensive Individual Assessments
At Treehouse, every student benefits from a personalized, in-depth evaluation. Our expert, who holds qualifications as a BCBA, Chartered Scientist, Chartered Psychologist, Special Needs Consultant, and a member of the Chartered Institute of Educational Assessors, carries out a rigorous process to accurately identify each student’s unique strengths, challenges, and developmental goals.
Unlike other educational institutions, we take pride in our ongoing formative assessments that continuously refine our teaching strategies, alongside term-end summative assessments that precisely measure progress.
Personalised Curriculum Design
Based on the assessment, a fully customised curriculum is designed by a seasoned professional with over 20 years of global expertise in special needs education. This professional holds prestigious credentials as a Chartered Scientist, Chartered Psychologist, and Board-Certified Behaviour Analyst (BCBA).
One-to-One Support
The curriculum is implemented by a team of internationally qualified special needs educators and behaviour therapists, ensuring personalised, one-on-one support for every child.
Expert Oversight
Implementation is supervised by another highly experienced internationally certified and licensed Behaviour Analyst with over 20 years of global experience in the field.
A Globally Recognised Institution
With 74% of our students relocating from overseas, The Tree House International has become a beacon of hope and a regional hub for specialised education. This historic achievement has placed us at the forefront of special needs education in Sri Lanka, recognised both locally and internationally.
Join Us in Making a Difference
At The Tree House International, we empower children with special needs to unlock their potential and thrive as independent, valued members of society. Together, let’s build a brighter, more inclusive future.
Contact us today to learn more or schedule a visit!
Welcome to The Tree House International
School Programmes
Special education therapy by special needs educators.
Day School 9.30 AM - 2.30 PM After School Classes 3.00 - 5.00 PM
Sensory Integration
A fully equipped occupational therapy room, featuring Ayurvedic massages, designed to make therapy sessions engaging, creative, and stimulating while enhancing the confidence of students.
Speech Therapy
Speech therapy by qualified professionals in psycholinguistic, behaviour and social models of speech. We assess which model of speech is appropriate for the student and apply the suitable model(s).
Behaviour Therapy
Internationally Certified Behaviour Therapists, Behaviour Analysts, and Behavioural Psychologist.
Evidence-based Therapies
Therapies such as CBT, OT, ABA/Behaviour Therapy, Individualised Education Programmes, Sensory Integration, Speech, Physiotherapy and more!
Complimentary Therapies
Ayurvedic Massage, Focus System, Safe and Sound Protocol (SSP), Interactive Metronome, Mindfulness and more.
Swimming Pool
Hydrotherapy and water
based fun. Swimming lessons by qualified professionals






Each student gets one-to-one therapy from internationally qualified Behaviour Therapists and special needs educators.
International student enrolment.
Number of International Behaviour Therapists (IBT) and Special Needs Educators.
The only school operated by a Chartered Scientist, Chartered Educational Assessor, Chartered Psychologist and 2 internationally certified Behaviour Analysts.
1
74%
35
1
The Tree House International
17/14 Captain Sumudu Rajapaksa Mawatha, Dehiwala, +94 74 102 2110, info@tthi.lk