[10] The school was briefly sited in Silverstream, Upper Hutt, on land that later became a rest home.

[11] In 2016 the school undertook a new construction project which included the new Maths and Social Sciences classroom block and was followed by the new Visual Art rooms later in 2017.

[15] The school has stated that the reasoning for this is that is "the key to small class sizes and hiring extra staff needed for this, beyond the level allowed by Government".

[18] The school runs an ′International Service′ programme, where each year a group of students complete service by helping others in less fortunate countries.

HIBS has performed International Service of countries such as Philippines, Mexico, Samoa, Vietnam, Tonga, Cook Islands and Fiji.

[20] The program allows for students to gain their private pilot licence before they leave school.