Ours is a culture of inspiration, innovation, energy and creativity in teaching, and this character shapes the learning of our pupils. From our Headmistress, Suzie Longstaff, an ex-Olympic cox, to the many scholars, published authors, skilled artists, composers, playwrights and sports coaches; every one plays a part in creating the stimulating learning environment for which Putney is known. It makes our school an innovative, dynamic and really exciting place to teach, and above all, to learn.

Hear more from our Headmistress

Mrs Suzie Longstaff

BA (Dunelm), MA(Bath), PGCE (Cantab)

Mrs Suzie Longstaff was appointed Headmistress of Putney High School GDST in September 2015.

She joined Putney High School in 2009 as Head of Sixth Form before becoming Deputy Head (Academic) and Acting Head in September 2014.

Mrs Longstaff read Economics at Durham University and gained her PGCE specialising in Maths at the University of Cambridge. She has a passion for lifelong learning, has a Diploma in Computing from the University of Oxford and in 2015 was awarded her MA in Education from the University of Bath. She has recently become an ISI Inspector and is on the governing board of two local schools.

Before joining the teaching profession, Mrs Longstaff had a successful rowing career with highlights including coxing the GB Women’s VIII at the Atlanta Olympics in 1996 and Goldie in the 1997 and 98 Boatraces.

Mrs Longstaff is married with twin daughters, who are pupils in the Junior School.

Mrs Heidi Armstrong

Deputy Head (Pastoral)
BA Hons (Nottingham) German

Mrs Heidi Armstrong has been pastoral deputy head at Putney High since September 2015. She began her teaching career in 2004 at another GDST school, Croydon High, having previously worked in finance. She was promoted from being a  teacher of German to be head of department, then head of house and exams officer. In 2010 she was appointed head of sixth form, when she also became part of the senior leadership team. Her main responsibility at Putney is leading the school’s pastoral team, all safeguarding matters and overseeing the day to day running of the school. She believes that the school’s success in delivering excellent pastoral care is the result of the depth of experience coupled with intelligent application of the best research. Furthermore, she feels strongly that pupil voice and the ability to debate confidently should be encouraged in all aspects of school life as it is integral to the positive wellbeing of the pupils.

Mrs Armstrong’s first degree is from Nottingham University, where she read German. She went on to gain a PGCE in modern languages from Kingston University and is currently nearing the end of her studies for an MEd from the University of Buckingham. She is a governor at two very different schools, Parsons Green Prep in Fulham and Sherwood Park School in Beddington, a maintained school for the severely disabled.

Mrs Armstrong is married with one son, who is in his second year of university.

Mr Rob McMillan

Deputy Head (Academic)
BSc Hons, PGCE (Southampton)

Mr Rob McMillan was appointed as Deputy Head (Academic) at Putney High School GDST in April 2018.

He joined Putney High School from his previous role as Head of Science & Biology at North London Collegiate School, where he worked for seven years. He started his teaching career teaching Biology at The Latymer School in Edmonton, following which he was promoted to Head of Biology at The Judd School in Tonbridge.

Mr McMillan read Biology at the University of Southampton and completed his PGCE in Secondary Science in Southampton, immediately following his Undergraduate Degree. He has a passion for the power of inspirational, rigorous subject teaching and for working with the exemplary teachers we have here at Putney High School, to ensure that teachers and students share a mutual love of learning and exploration of the subjects that they love.

Mr McMillan is married with one young daughter.

Mrs Pippa Page-Roberts

Head of Junior School
B.Ed Hons (Chichester)

Mrs Pippa Page-Roberts was appointed Head of Junior School in September 2017.

She first joined the GDST in 2006, when she was appointed Head of English then Director of Innovation, Teaching and Learning at Kensington Prep School GDST, Fulham.

Mrs Page-Roberts gained her B.Ed (Hons) at the University of Chichester, where she majored in English. She has clear passion and drive for how children learn, and she embodies the Putney High ethos of academic excellence alongside outstanding pastoral care. She is committed to instilling a love and aptitude of learning in all pupils in an environment which nurtures and stimulates intellectual curiosity, creativity and innovation.

Mr Andrew Miller

Junior School Deputy Head (Academic)
BSc Hons (Lancaster), PGCE (York St John)

Mr Andrew Miller joined Putney High School in September 2015 as a Year Three class teacher before being promoted to Junior School Deputy Head (Academic).

Mr Miller read Geography at Lancaster University with a year on exchange at the University of British Columbia in Vancouver, Canada. He then completed his Primary School PGCE at York St John College, York.

Over the last fourteen years, Mr Miller has worked in both the state and independent sectors (co-ed and single sex) in the UK and internationally, including seven years at the British School of Tokyo, Japan. Mr Miller has also been awarded a Post Graduate Certificate in Applied Educational Leadership and Management from the University of London.

In addition to his teaching qualifications, Mr Miller is also a qualified Paws b mindfulness teacher and has a passion for ensuring that the academic rigour of the school is balanced by its pastoral approach.  Outside of school, Mr Miller is keen to take on new challenges, one such highlight was his successful completion of the Virgin London Marathon for the Make-a-Wish charity in 2018.

Miss Isobel Franks

Junior School Deputy Head (Pastoral)
BA Hons (Kingston), PGCE (Wolverhampton)

Miss Isobel Franks joined Putney High Junior School in January 2012 as a Year 5 Class Teacher, before being promoted to Pastoral Tutor and then KS2 Coordinator. She was then appointed to her current role as Junior School Deputy Head (Pastoral) in September 2017.

Miss Franks read Applied Social Sciences at Kingston University and gained her PGCE, specialising in English, at Wolverhampton University.

Miss Franks has a particular interest in wellbeing and the social and emotional aspects of learning. She teaches the ‘Opening Minds’ programme in the Junior School, which aims to enable the girls to develop a deeper understanding of themselves, of others and of their place in the world.

Miss Franks is a trained Paws b mindfulness teacher, and she is an accredited member of the Positive Schools Programme. She was an early adopter of our Coaching Programme, contributing to the collaborative culture that exists here at Putney.

During the Summer of 2018, Miss Franks travelled to India to work as a volunteer coach and advisor for the Limited Resources Teacher Training programme, working alongside local teachers to share best practice and innovative ideas.

In her spare time, Miss Franks enjoys dress making and she endures running!

Ms Ella Barden

Head of Sixth Form

Ms Ella Barden joined Putney High School in September 2018 as Director of Sixth Form. She spent four years at The Godolphin and Latymer School as Assistant Head of Sixth Form and prior to that she taught Physics at Wallington County Grammar School. Ms Barden read Natural Sciences at Durham University. After completing her undergraduate degree she worked at JP Morgan Investment Bank for five years before embarking on her true passion for teaching and education with a PGCE in Secondary Science from University of Roehampton.

For Ms Barden working with the Sixth Form is an incredible privilege. Especially amongst the creative, curious and compassionate students at Putney as they delve into their academic interests, explore opportunities beyond school, all whilst developing the maturity to conquer challenges and, most importantly, building lifelong friendships. What an exciting time it is!

Head Girl Team 2019/20

Our Head Girl team play an essential role in the running of the school. Acting as an important bridge between students and the teaching body.

Our Values

  • We are a spirited and vibrant school
  • We are inquisitive, intellectually curious, and love learning
  • We act with integrity, kindness and a sense of moral purpose
  • We are a collaborative and democratic community
  • We are innovative and genuinely open to new ideas
  • We are ambitious, bold and unafraid of excellence
  • We are down to earth

The Local Governing Body

Mrs C Boardman (Chair) MA, MBA
Ms A Scott-Bayfield (Deputy Chair) MA, Solicitor of the Supreme Court
Mr J Bacon BA
Mrs R Bell BSc, MSc
Ms Collette Lux MA
Mrs M Matley
Prof C Ozanne BA, MA, DPhil
Mr Neal Scambler BSc (Hons), MRICS

Trust contacts:

Ms Lucy Colegate (School Governance Manager)
Mr Martin Pilkington (GDST Head of Governance)


To contact the GDST:

Cheryl Giovannoni – Chief Executive Officer
Girls’ Day School Trust
10 Bressenden Place

email: info@wes.gdst.net

telephone: 020 7393 6666

Our Admissions team are always here. Get in touch with any questions or to book a tour.

"Putney is a community of fun, bright, ambitious individuals, but there is one thing that unites them all, and that is a genuinely enthusiastic love of learning."
Hear more from Suzie Longstaff

Life at Putney

Our students leave not only with a top set of results, but with the confidence and the resourcefulness to make their mark in whatever they choose to pursue. Putney is energetic, fun, supportive and above all, down-to-earth.


Putney pupils are spirited, vibrant and learn to think for themselves, but they also know how to have fun, and most importantly, to really enjoy their time at school.

Suzie Longstaff

Suzie Longstaff
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