
About Aldwickbury
Inspiring teaching and exceptional facilities, where pupils are free to find their greatness.


Headmaster’s Welcome
A very warm welcome to Aldwickbury.
I am delighted to welcome you to our website, which I trust will provide you with valuable insight into the life of our school. Here, you will find information about our exciting and extensive curriculum, our forward-thinking approach to education, and most importantly, a real flavour of what it means to be part of the Aldwickbury community.
It is a great privilege to lead such an outstanding school, supported by a team of highly skilled and dedicated staff who, every day, ignite a passion for learning in our pupils. In September 2025, we were proud to welcome both boys and girls into our school, as Aldwickbury began its new chapter as a co-educational preparatory school. This is a significant and positive step forward for us, ensuring that our values-driven, nurturing education is accessible to more families in the heart of Harpenden in Hertfordshire.
As a school, we remain firmly committed to respecting tradition while embracing innovation. Our aim is to deliver an education that prepares children for the modern world, underpinned by strong values and high expectations.
Pastoral care sits at the heart of everything we do. Every child is seen, celebrated and supported to be themselves, to try their best, to embrace challenge and above all, to be kind. We believe this nurturing and supportive environment is the key to helping children flourish both personally and academically.
Aldwickbury offers a truly holistic education, where academic ambition is balanced with a rich co-curricular programme. Our pupils enjoy exceptional opportunities across the arts, STEM, sport, music and drama, all within our beautiful and extensive grounds. Every child is encouraged to discover their passions, build confidence and grow as individuals.
The journey through Aldwickbury prepares pupils to leave at 13, ready to take the next step in their educational journey, equipped with the skills, resilience and character to thrive. Of the utmost importance to us, is that they leave not only well-prepared academically, but as good people, kind, respectful and grounded in strong values.
I believe Aldwickbury is a very special place. I warmly invite you to come to visit us, either at our next open morning or for a personal tour, so you can experience for yourself the vibrant, inclusive and happy community that makes our school unique.
I look forward to welcoming you.
Paul Symes
Headmaster

An Award-Winning Education
In recognition of our future thinking vision and school values, Aldwickbury were named the UK’s ‘Independent Boys’ School of the Year’ in 2024. As we continue our move to co-education, our aim is to become the leading co-educational prep school in the country, offering both boys and girls a holistic education that nurtures academic success within our beautiful Hertfordshire setting. We’re proud to offer an approach that is as ambitious as it is nurturing, with a proven track record of success.
We embrace change and remain at the forefront of education, delivering a strong curriculum that prepares pupils for the future. Our Future Thinking Curriculum equips children with essential skills such as critical thinking, collaboration, communication and creativity.

School History
Founded in 1948, Aldwickbury School has a proud tradition of delivering outstanding independent education in the heart of Harpenden in Hertfordshire. The school was established by Headmaster Kenneth Castle, who saw the potential of Aldwickbury Mansion as the ideal setting to bring his educational vision to life. Alongside his colleague, Brian Chidell, he purchased the property with the ambition of creating a school that offered exceptional opportunities for young learners.
However, the roots of Aldwickbury stretch back even further. In 1937, Kenneth Castle acquired Lea House School, then a small school educating just 15 boys. A year later, Brian Chidell joined as a Junior Master before departing to study at the University of Oxford. During the Second World War, Castle served his country, leaving the running of the school in the capable hands of Miss Margery Topham. When he returned in 1945, he found a thriving school community, 60 pupils and a small but dedicated team, including a cook and housekeeper.
When Aldwickbury Mansion came on the market, Castle seized the opportunity to move the school to a more expansive and inspiring setting. In the summer term of 1948, Aldwickbury School officially opened its doors, welcoming the 65 boys from Lea House to their new home. Set within 20 acres of beautiful grounds in Harpenden, the site offered the space and environment needed for pupils to explore, discover and thrive.
Originally established as a boarding school, Aldwickbury has retained the spirit of that tradition with its longer school days and the option of flexi-boarding. Our extended days allow for a strong academic focus, alongside a rich extra-curricular programme that nurtures character, confidence and curiosity. Dedicated prep time from homework during the school day also means that pupils can enjoy their evenings at home, creating a healthy balance between learning and family life.
Aldwickbury has always believed in a truly holistic education, one that balances academic ambition with care, character and opportunity. While we honour our heritage, we continue to look forward, evolving our curriculum and culture to meet the needs of a changing world. This includes our recent and exciting transition to becoming a fully co-educational school.
Throughout our history, Aldwickbury has never shied away from innovating or adapting, and are excited about how our change to co-education will bring a new chapter to the school.
Make an Enquiry
To find out more about Aldwickbury School, please fill in our enquiry form. Our Admissions Team will be in touch, answer your questions and guide you through the admissions process.

Aldwickbury History by Headmaster
In Aldwickbury School’s 75-year history there have only been five Headmasters and a brief history of each of their tenures can be found below:
In 1937 Kenneth Castle became Headmaster of Lea House School, a small day prep school in Harpenden with about 15 boys (and a few girls!).
1n 1943 Capt K B Castle (as he was then known) was elected to the IAPS (Incorporated Association of Preparatory Schools) as Head of Lea House.
In 1947 Mary Kincaid joined the staff of Lea House and later that year she and Kenneth Castle announced their engagement. The purchase of Aldwickbury mansion and its 14-acre estate was in the process of negotiation after Mr Castle, who had seen the potential of Aldwickbury as a day and boarding school had invited Brian Chidell, who joined the permanent staff of Lea House in 1946, to become his junior partner. Brian Chidell had previously worked at the School as a Junior Master before going to university and serving in the army.
Aldwickbury Ltd was incorporated in 1947 (Company no. 453745) with Mr Castle holding two- thirds of the shares and Mr Chidell one-third.
In April 1948 Mr Castle and Miss Kincaid were married and moved into Aldwickbury mansion. Some 70 boys and 7 staff moved into their new premises from Lea House at the start of the summer term with Mr Castle as Headmaster and Mr Chidell as his deputy.
The first Aldwickbury magazine of May 1949 gives a hint of the challenges that had to be faced in that first year:
‘There is something to be proud of in being one year old, and to have confounded the gloomy prophets who foretold that disaster would overcome us if we moved to such large premises in these difficult days.
‘We feel justified in looking back over the year with some satisfaction in that we have not only survived, but made Aldwickbury very much more suitable for use as a school by means of various internal and external alterations, maintained and increased the number and efficiency of Day Boys, and started the Boarding side of the School with 18 boys.’
With just one boarder at the very beginning in 1948, the boarding side grew to a total of 52 boarders by September 1957, which the magazine of July 1958 refers to as ‘Capacity load’. Up until 1960, Mrs Mary Castle personally supervised the domestic arrangements and catering and oversaw the boarding department where matron cared for the boys’ needs. The 1958 magazine reports: ‘The buildings and grounds have been slowly and steadily improved, furniture and equipment of all kinds have been gradually obtained, and we feel that now after a decade, we have converted an old-fashioned private house into a reasonably modern and well-equipped school.’
Following the death of Mr Castle in 1960, Mr Chidell became Headmaster. Mrs Castle continued to serve the school as mistress of the 2nd form until her retirement in 1971. After purchasing Mrs Castle’s two-thirds shareholding in 1963, Mr Chidell became sole proprietor until 1969 when Aldwickbury School Trust Ltd was formed with a Board of Governors.
In 1952 Miss Avril Fairman joined the staff as a music teacher and by 1953 she had become Mrs Chidell. After 1960 she supported Brian Chidell in the way of Headmasters’ wives working tirelessly to keep things running smoothly in every area of the School.
In 1967 an existing Kindergarten, run by Mrs Dorothy Prime, was invited onto the site and incorporated into Aldwickbury in the same year. With the completion of the swimming pool in 1960 and the hall/chapel in 1963, the purchase of the Nursery garden in 1967 – the greenhouses, outhouses and cottages restored and modernised as well as many other improvements the School was a thriving, vigorous institution by 1969.
Between 1969 and 1979 as Mr Chidell continued as Headmaster and new buildings and facilities were added – a gymnasium, the hall/chapel extended, classrooms and hard tennis courts. He taught maths and music and was his own bursar.
In 1979 Brian Chidell handed over the running of the school to Mr Peter Jeffery with his wife Christine.
The School developed further under the new Head’s guidance with new and refurbished buildings including a new kitchen, a science block with classrooms and music practice rooms, a superb indoor swimming pool, junior classroom block and new pre-prep building, as well as overseeing the introduction of computers, increasing numbers of staff and boys, but with its distinctive traditions and values largely unchanged. Like his predecessor, Peter taught maths and also coached rugby.
Christine Jeffery supported Peter as Headmaster’s wife in the inevitably diverse and varied way that the position dictates as well as teaching English, running the library and bookshop, entertaining the School community and in the latter years being Night Matron.
In 2003 Mr and Mrs Jeffery retired after 24 years of dedicated service to the School.
In 2003 Mr Vernon Hales became Aldwickbury Headmaster and took over the running of the school along with his wife Claire.
Over their 18 year tenure Vernon and Claire set about transforming, upgrading, and modernising the school’s facilities. At the same time they built upon the tradition and history of the school, while further strengthening the schools’ values and creating an outstanding environment for education.
Mr Paul Symes was appointed the new Headmaster of Aldwickbury in September 2021.
He is a forward-thinking Headmaster who places great emphasis of the school working as a team to deliver an exciting forward-thinking curriculum. Paul has overseen the implementation of the new Sports Hall and the recent addition of the temporary STEM hub that supports the schools Future Thinking Curriculum and Digital Strategy, while proving an insight into the School’s future development. In keeping with tradition, and his own pastoral background the Aldwickbury values remain very much at the heart of the school.

Visit and Explore
Discover Aldwickbury for Yourself
We understand that choosing the right school for your child is a significant decision. A visit to Aldwickbury offers a genuine insight into our warm and welcoming community, the energy of our classrooms through inspiring teaching, and the breadth of opportunities available both in and beyond the curriculum.
Aldwickbury is a place where pupils thrive. Our curriculum is brought to life by passionate teachers who ignite curiosity, independence and a love of learning. We have a diverse range of facilities to nurture the development of our pupils, including:
- Well-resourced library
- Heated indoor swimming pool
- Specialist STEM Hub and ICT Suite
- State-of-the-art Sports Hall, with climbing wall
- 20 acres of expansive sports grounds and fields
All these assets come together to offer a broad, balanced education that fosters academic success.
Whether you attend one of our Open Mornings, join a Stay and Play session, or book a personal tour, we’d be delighted to show you what makes Aldwickbury such a special place to learn and grow.








