The school was formally opened in 1938 by admiral Sir Vernon Haggard using a ceremonial silver key handed to him by the first headmaster P.G. White. However, a predecessor institution called Great Burstead Board School opened on 13 February 1878. This school was situated just across from Laindon Road and P.G. White who was Billericay School's first headmaster was appointed head of the senior mixed department here in 1923. The Billericay School was built as by the 1930s the school was struggling to cope with a growing enrolment and plans were drawn up for a new school big enough to cater for Billericay’s growing population. Costing £22,400 Billericay School opened its doors in 1937 a year before its 'official' opening as a
grammar school. Air raid shelters were built almost immediately after to protect students from Luftwaffe planes travelling to London on bombing raids during World War II. The school was built upon the site of an Iron Age foundry where prior to the building of the school a cornfield and a farm was located. P.G. White served as headmaster until 1949 when he died suddenly on holiday shortly before he was due to retire. Arthur Lingard became headmaster in 1949 and oversaw the school's transformation into a comprehensive on 1 September 1968 and the building of the school’s sixth form centre which occurred in the 1960s. During the 1970s exchanges began with international schools including an annual trip to the Einstein Gymnasium in
Reutlingen in Germany - an exchange programme that continues to this day. The Parents’ Guild (later Friends of Billericay School) was also formed in this decade. Robert Goodier became headmaster in 1991 and oversaw the move away from LEA governance to self-governance. The school's Music Studio was finished in 1991 and the decade saw a period of success for the Music Department under the headship of Mr John Stevenson including appearances at the London TV Arts Festival and on the BBC's Blue Peter. In 1997 the school was awarded its third Schools Curriculum Award by Princess Anne. Sue Hammond became the first female head of the school in Easter 1998 and in 1999 the
Resource Based Learning Centre (RBLC) was opened. In March 2002 the school was the subject of a channel 5 documentary concerning a school reunion for pupils who attended the school between 1980 and 1982. The School achieved
Maths and Computing College status in 2003 allowing some use of selection based on aptitude in these subjects. It was thought that this status would generate an additional £1 million worth of funding, but a
government policy on foundation schools reduced this sum significantly. The school has since converted to academy status, but continues to have Maths and Computing as a specialism. The 2000s saw long-running attempts to sell disused land adjacent to the school in order to fund a series of improvements Development was initially refused but was appealed. In 2009 approval was gained to develop 51 new homes upon a six-acre plot. Changes were made in the 2005/06 academic year which cut the lunch break from 1 hour to 45 mins so that the school day finished at 3.00pm rather than 3.15pm. In January 2007 the school was at scene of a
BBC London news report after a gas explosion scare in nearby South Green, down Southend Road. The school was used to house those evacuated from the surrounding area. No explosion from the acetylene and oxygen cylinders occurred but one man suffered burns from the fire. The scare scene was 3 houses away from the South Green Memorial Hall. In 2009 it was proposed that the a Billericay Community Trust be formed in order to increase standards at the school. This would involve a partnership with the multinational technology corporation
Dell, something that the Essex branch of the
National Union of Teachers has objected to. In 2010 The School suffered from austerity measure budget cuts and was one of several schools in Essex which lost out on money promised under the
Building Schools for the Future programme. (pictured). In 2011 the school's sixth-form prom ended after some students were allegedly found taking drugs. The school converted to academy status on 1 July 2011. Becoming an academy school gives the school greater budgetary autonomy and control over its curriculum. This also involved the forming of the Compass Education Trust with a few local schools joining over the years like Bromford in 2017, & Woodlands and Appleton in 2023. In March 2015, Sue Hammond announced that she would retire in the summer following 17 years as head. as Essex as a whole was hit the hardest because of
RAAC. This meant the full closure of a whole block and several classrooms around the school also needing to be closed. Demountable were placed in the tennis courts of the school temporarily. - this was done by the contractor Maxi Space. During this, in the May half-term of 2024 the school suffered a Cyber attack and sensitive data was exposed to hackers with the school working with the
Essex Police and
Action Fraud - because of this the school closed for an extra day. But more RAAC was found within class rooms and a further 9 were closed - at the same time as the Cyber attack. The RAAC Migration was done by the end of 2024 and the Cyber Systems were fixed around a week or two later. The school appeared on
Blue Peter in Early 2024 as a student and her friends are surprised to meet the English Woman's Natural Rugby Team with the episode airing on the 28th Feb 2024. In February 2026 the school joined the
Harris Federation with the whole of the Compass Trust joining along as well. This means that Billericay will change its name to Harris Academy: Billericay with the other schools changing there name too to reflect the local area they serve. ==Campus==