Cornerstone Christian School began as a full primary school (Years 1-8) in 1987 due to a group of parents from many local churches desiring quality Christian education for their children. Cornerstone became fully registered as a private primary school later that year.
In 1994, Cornerstone became an integrated school with the P.N. New Life Centre Charitable Trust as the Proprietor of the school.
Initially operating out of three classrooms on land provided by Palmerston North Life Church, the growing roll quickly required additional space. The Roberts Line property was purchased in 1997 and by 2003 there were six classrooms on the site in addition to the three classrooms on the Life Church property.
Since 2007 the whole school has been situated on the Roberts Line property. Mihaere Drive was subsequently extended to meet up with Roberts Line and 119 Mihaere Drive became the school's address.
In 2013, the Minister of Education granted Cornerstone a change of class to allow it to educate students until the end of Year 13. Year levels are being rolled out sequentially; a process which will conclude in 2018, when we will offer Y1-13 for the first time.
In July 2014, the Minister of Education agreed to incrementally increase Cornerstone's maximum roll cap to 580 students. This allows the school to enrol approximately 50 new entrant (Year 1) students each year.
In December 2014, the Ministry of Education transferred the proprietorship of the school from the P.N. New Life Centre Charitable Trust to the Cornerstone Christian Education Trust.
A purpose-built science laboratory was completed in 2014, two multi-storey secondary blocks were built in 2014 and 2016, and a gymnasium was built in 2018.