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The Board of Governance for Radnor House Sevenoaks comprises Directors and Heads of School plus two members who are parents at the school, each of whom serve on the Board for two years from the time of their appointment.  Usually one parent will have a son or daughter in the lower years of the school and the other parent’s son or daughter will be in the higher years of the school. 

The Board of Governance meets termly with the aim of advising the Directors on the effectiveness of the School with regard to meeting its aims and implementing its development plan. Members help Directors to support the Head and the School and also advise in holding it to account. 

All members of the Board of Governance can be contacted confidentially at

Colin Diggory - Chairman of the Board


Colin Diggory is a former Headmaster, recently retired after 8 years as Head of Alleyn's School (IAPS, HMC), Dulwich, and 11 years as Head of Latymer Upper School (IAPS, HMC), Hammersmith; with 34 years experience of teaching in the independent sector (Manchester Grammar; St. Paul's; Merchant Taylors' Northwood; Latymer Upper; Alleyn's). After graduating from Durham University with a 1st Class Honours in Mathematics, he achieved his Masters Degree through the Open University and was awarded a Vice-Chancellor Award for Education and Language Studies for his Doctorate of Education.

Colin Diggory was a Chief Examiner at A level; an Ofsted assessed Lead Inspector of Independent Schools, and continues to provide thought-leadership for the sector through public speaking and writing. Should you wish to contact Colin in his capacity as Chair of the Board of Directors, please contact him via the school address below.

David Paton- Executive Principal

 BComm (Hons) PGCE MA

David Paton is the Executive Principal and Head of Radnor House and a passionate believer in the power of good teaching. David works closely with the Senior Leadership Team to deliver an outstanding learning experience for pupils and teachers alike.

David has been a teacher for almost 17 years and prior to founding Radnor House was Head of Sixth Form at Harrodian and Deputy Head of the Senior School at Dulwich College. He achieved his undergraduate degree at the University of Edinburgh and his Masters degree at the Institute of Education.

Rosie Allen - Non-Executive Director with Responsibility for Safeguarding

BA (Hons) PGCE

Rosie Allen, previously Head at Radnor House Twickenham, has now become a board member. She graduated from the University of Nottingham with First Class Honours in History and stayed on to complete a Secondary History PGCE.

Her teaching career spans over 15 years and has encompassed the full range of age groups and educational sectors, with significant leadership experience prior to joining Radnor House. She is passionate about making the most of the opportunities available to each and every pupil and creating a warm and collegiate environment in which pupils and staff alike can flourish.

George Penlington - Head of Senior School

BA, Dip Teaching

Graduating from Otago University, New Zealand, with a Bachelor of Arts degree in Art History, George completed his teaching qualification at the Christchurch College of Education, New Zealand. He started his career at New Plymouth Boys’ High School (NZ), teaching English and Art History. He was also the Arts Coordinator and a boarding master.

Moving to the UK, George briefly taught English at Hurlingham and Chelsea, before taking up a permanent position at Bearwood College in Wokingham. There for 13 years, he was an Assistant Boarding Housemaster, a Day Housemaster, Head of the Prep School, and, for the final seven years, Academic Deputy. A keen sportsman, he is relishing his position of Head of Senior School at Radnor House Sevenoaks, as it affords him the opportunity to further strengthen the already excellent Co-curricular programme. 

Alessandra Edge-McKenna - Parent Governor


Alessandra has three children currently in the Prep School.  A PR consultant by profession, working largely in the education and health sectors, she has a particular interest in parental engagement in children’s learning.  She aims to contribute to the Board with views on supporting parents to participate in their child’s education through positive collaboration and effective communications with the school’s teaching community and leadership team.


Alessandra began her working life with a stint at the European Commission in Brussels, before returning to London where she built her career as a PR professional, working in consultancy on national and regional campaigns in both the public and private sectors.  She has a degree in Spanish and Politics from Bristol University and an M.Phil in Politics and Economics of Latin America from Trinity Hall, Cambridge.


Sara Henderson - Parent Governor


Sara is a Senior School parent at Radnor House School with a son in Year 8.  She has over 25 years experience working in various industries including Airline Management, Finance and more recently Education. 


For over 14 years Sara worked at an independent secondary special needs school with responsibilities for Safeguarding, HR, Regulatory Inspections and Clerk to the Board of Trustees. 


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