known as the Junior School) and Senior Schools. Boys started at Rosedale House in Cambridge in September 2014, and at the Senior School in 2017, with classes from Year 5 through to Year 11 being taught in a diamond formation. This combines the academic benefits of single-sex learning with the social advantages of a co-educational environment. Awards and accolades In 2013, the Sunday Times named the Foundation the International Baccalaureate (IB) School of the Year for the second time. The paper said: "Students at the Stephen Perse 6th Form College in Cambridge are world-class achievers. Their exceptional academic results this year mean that the school is not only ranked first in Britain but also joint first in the world for the international baccalaureate (IB) diploma." In November 2014, the school was awarded the title Independent School of the Year 2014 and also "Outstanding Strategic Initiative" by the Independent School Awards, decided by a panel of independent judges, including the Chief Inspector of the Independent Schools Inspectorate, Christine Ryan. In November 2016, the Foundation was named the Best Independent School in East Anglia by The Sunday Times on its 'Parent Power' list. The list is acknowledged as the 'most authoritative survey' of the county's best schools, according to the newspaper. The Foundation was ranked at number 18 in a list of 2,000 schools around the United Kingdom. The accolade was based on GCSE and A Level results – 97.6% of A Level students achieved A* to B grades and 86.1% of GCSE students achieved A* and A grades. In 2017, The same Parent Power survey ranked the school number 40 in the UK and, in 2018, number 74. The Foundation was shortlisted for Digital innovation/ed tech school of the year at the TES Schools Awards 2017. In 2020 the Senior School received the Sunday Times Schools Guide 2021 award for East Anglia Independent Secondary School of the Decade. Site and facilities The main school site occupies a city block, three sides bordered by residential streets and the fourth by the University of Cambridge Department of Chemistry. This houses the Stephen Perse Senior School (ages 11–16), with Rosedale House (ages 3–11) occupying a site close by. The Stephen Perse Pre-Prep was established in 2010, after the Foundation purchased the Madingley site on the retirement of the previous owners. In 2017, the school completed a major building project on the main site. It