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Our Governors

Since April 2008, TreeHouse School has been a Non Maintained Special School. This is a type of special school run by a charity rather than a local authority, which can receive certain types of Government funding. The Governing Body is separate from, but over-lapping with, the Board of Trustees in that two Governors are also Trustees and the Trustees receive reports from the Governing Body.  By law we do everything that a Governing Body does in a local authority school except manage the budget and the premises.

The Governing Body meets six times in the year but Governors are also actively involved in many aspects of school life. They are completely committed to the success of the school and to ensuring the best possible provision for our pupils.

Here is the Governing Body Code of Conduct. 


Philippa Stobbs

Philippa Stobbs –  Chair of School Governing Body

(as of 08.10.14)

Philippa Stobbs has a professional background in teaching and school inspection work. She has led a number of national developments in the education of disabled children and children with special educational needs (SEN). She has led policy work for the Special Educational Consortium since 1992, the development of national support to parent partnership services, the development of guidance on the Disability Discrimination Act and the Equality Act in schools and early years settings. She is Assistant Director at the Council for Disabled Children and Policy Vice-chair of the Special Educational Consortium.


Beverley Brewer

Beverley Brewer – Parent Governor

(as of 13.11.14)

Beverley joined the Governing Body in October 2014. Two of Beverley’s sons are pupils at TreeHouse School. Beverley has been involved in the ABA community for eight years. She has previously served as a Governor in a primary school. She has also led and supported many campaigns in her area opposing cuts to services for children with special educational needs and been involved in local parent support groups. Beverley works for the Care Quality Commission.


Kerry Sternstein – Headteacher

Kerry Sternstein has been appointed as the new Head Teacher of TreeHouse School. She will take up her role at the start of the new academic year in September 2016. Kerry has over thirty years of experience of working with children, young people and adults in a range of settings. Kerry has taught for the last twenty years at Shaftesbury School, an ‘outstanding’ special school in Harrow, where she was Head of School.

Prior to this, Kerry worked as a SENCO and English and Drama teacher in mainstream high schools. She is a qualified teacher, PGCE tutor, mentor and coach and has been granted two national awards for services to special needs and outstanding training. She also holds the NPQH – the national qualification for Head teachers. 


Jolanta Lasota - Chief Executive of Ambitious about Autism

(as of 01.10.14)

Jolanta is passionate about enabling children, young people and families affected by disability to live the life they choose. She previously worked for a number of leading voluntary sector organisations including Turn2us, Shelter, I CAN and the Governance Hub. She is Chair of the Autism Education Trust and SEND Consortium which runs the service SENDirect.


Ann Waters – Local Authority Governor

(as of 08.10.14)

Ann Waters is a Labour councillor in the London Borough of Haringey. She was a career civil servant and has also helped to manage a community centre in Muswell Hill where she has lived for more than 30 years. She has two grown up children.


Marjolein de Vries

Marjolein de Vries, Community Governor

(as of 29.04.15)

Marjolein joined the governing body in April 2015 as a Community Governor. After working in Community Theatre and Theatre in Education, Marjolein taught geography in secondary schools before focusing on work in the learning disability field within the voluntary sector from 1992 onwards. Since 2001 she has been Director of Kith & Kids, a North London based charity supporting families with children and adults who have autism and/or learning disabilities through volunteer-supported projects and activities


Martyn Craddock, Parent Governor 

(as of 13.12.17)

Martyn will formally join the governing body in December 2017 as a Associate Governor. Martyn Craddock is the father of twin boys, one of whom has attended TreeHouse School since 2009. As a parent, he has an understanding of the demands and joys of being a dad of a child with autism, and the impact it has on his family's life. After an early background in catering, Martyn then moved into the charity sector, firstly working for one of the City of London livery companies, and then Finance Director and CEO of St Luke's Trust in Islington. In 2015 he became CEO of United St Saviour's Charity, a large grant-making trust and sheltered housing provider in Southwark. Martyn is also a Ward Beadle in the City of London, a keen cyclist and cook.


Paul Williams, Associate Governor

(as of 04.10.17)

Paul Williams, a proud Geordie, but resident in London for over forty years recently retired last summer after 44 years as a teacher. He started his career in comprehensive schools in Shepherds Bush, followed by a time as an education adviser for the Inner London Education Authority, before moving into special education in 1989. He was a deputy head, and then a Head Teacher of a special school. He spent 23 years as Head of Shafetsbury High School, a special school in Harrow, which was judged to be outstanding consistently, and also during his headship it became a National Support School and worked closely with two Teaching School Alliances.
Paul has also been a Virtual Head Teacher for "looked after children", consultant Headteacher for London SSAT special schools, a National Leader of Education,  and Chair of Governors of an LAs  Alternative Provision.
For the past 12 years Paul has been the special schools' representative of the NAHT National Executive and has been Chair of their SEND Council. During this time he has had a wide range of experience meeting DfE, Ofsted and other national organisations on many occasions; giving evidence to Government consultations and working parties; and as a member of DfE  groups developing new initiatives.
Paul has also been actively involved in his local Mencap group as chair or vice chair for over twenty years.
Angela Hobsbaum TreeHouse Governor

Angela Hobsbaum, Community Governor

(as of 12.12.18)

Angela Hobsbaum worked at the Institute of Education in London (now UCL Institute of Education) in a number of roles, including PGCE tutor, MA course leader, and National Coordinator for Reading Recovery, an early literacy intervention for young children. She has also co-authored two books on guided reading at Key Stage 2. Now retired, she campaigns for safer cycling routes in Haringey and is learning how to grow vegetables.

Maria Chambers - Safeguarding Governor

(appointed on 04.07.2018)

Maria Is the Director of Education at Ambitious about Autism, she is passionate and driven to develop and provide excellent education for children and young people with Special Educational Needs. Maria is committed to a whole organisational approach to learning that focuses on achieving the best outcomes for children and young people. Maria has many years of experience in the education sector, teaching and leading in schools and colleges, leading large educational programmes and designing and co-producing new college and school provision. Before joining Ambitious about Autism she was Director of Education, Employment, Children and Young People’s services for Scope and was part of the team that led on the transfer of their services to a new provider. 



Ash Farrugia - Staff Governor

Ash began her Treehouse journey in 2014 as an ABA tutor.  Ash has since gone on to become a senior tutor and is currently now a Class Lead undergoing her Masters in ABA. Since starting at Treehouse she has worked with a range of pupils from primary up to sixth form and considers herself very lucky to have the pleasure to teach such unique individuals. 



Amy Aristodemou - Staff Governor

(appointed on 04.07.2018)

Amy joined TreeHouse as our English Co-ordinator and Key skills teacher in September 2017. Amy was elected by the staff to represent them during Governors meetings. Amy has been a Governor since November 2017.  She has over 5 years of experience teaching and working with children and young people with special educational needs (SEN). Amy has led work evolving the English curriculum and developing the phonics programme across the school.



Tracey Capstick - Deputy Head

Tracey started at TreeHouse in January 2018 as Deputy Head, replacing Kevan who had moved on to Headship in Plymouth. Tracey became a permanent member of the team in April. Due to her back ground and experience, she was made deputy of Lower School and Primary. Over the last six months she has been getting to know the pupils and the staff while looking to develop ways of moving the school forward and improving outcomes for our young people. One of the highlights for Tracey was the street party for the Royal Wedding. Watching the young people sitting together and enjoying the party atmosphere was very special. It is often the smallest things that makes us remember why we work here and what a significant job that staff do. For example a child remembering the words from a book I had read with them the week before or a thank you from a child who often chooses to not use words to communicate. I am looking forward to my first full year, getting to know families and working with you to ensure we are offering outstanding provision for all our young people.

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