The arms and crest have three historical sources: (1) the stag holding an oak leaf is the Trollope family crest; (due to the renaming of the school in 1862 to that of the book of the same name written by Anthony Trollope describing the buildings owned by the family and occupied by the school) (2) crossed arrows and a silver laurel wreath are included on the Harrow arms, and (3) the “Hurst” of oak trees on the shield and sprig of oak in the badge refer to the Gardner family.

[1] Orley farm has a program called the Edge Programme and consists of extracurricular activities such as cooking, photography, house skills and looking after the wildlife.

[2] In July 2015, the first of 4 major building projects came on line after the school invested just under £10 million to upgrade the facilities.

The new dining hall overlooking the pool was named after Lord Butler, a former pupil, who visited the school to open the building.

In September 2015, the original music school was turned into a building called the Elliot Block.