Aberlour House is the junior school of Gordonstoun School, and is now fully merged with it. It educated pupils from age 6 to 13.
The links between Aberlour House and Gordonstoun were very close. They shared the same school song and school flag (purple and white). Furthermore, they shared the same school motto – "plus est en vous", a contraction of "plus est en vous que vous pensez" meaning, "there is more in you than you think". They were both founded by the German educationalist Dr Kurt Hahn. His bust was prominently displayed in Aberlour House's front hall for many years.
The prep school was founded at Wester Elchies in 1936 – three years after Gordonstoun. Wester Elchies expanded such that in 1947 a modest stately home – Aberlour House – was bought. Charles Brereton was appointed headmaster by Kurt Hahn. Aberlour House had been occupied by the Army during the Second World War and is three miles from Wester Elchies.
The younger boys attended Wester Elchies until the age of about 10. Then they proceeded on to Aberlour House. They moved on to Gordonstoun at the age of 13. Wester Elchies got dry rot and had to be pulled down in the early 1960s. A dormitory at Aberlour House was named Wester Elchies in memory of the old school building. Other dormitories took their names from local castles such as Cawdor, Spynie, Darnaway, Gaudwell, Balvenie, Duffus, Lochindorb, Auchindoun, Towie Barclay, Kilvarock, Findlater, Brodie and Glamis.
Because of Wester Elchies' foundation date Aberlour House celebrated its Golden Jubilee in 1986. The school went mixed in 1974 – the same year as Gordonstoun took girls although sisters of boys at Wester Elchies had been admitted during and shortly after World War II.
Sir Toby Coghill, Bt (1930–2000), was headmaster of Aberlour House 1964–89. He was an old boy of Gordonstoun and a graduate of Pembroke College, Cambridge, where he read Architecture and attained 'blues' in rowing and ice hockey. Previously he had been a housemaster at Aiglon College, a Round Square affiliated school in Switzerland and became chairman of the board of governors upon retirement. His ancestor was Nevill Coghill (VC) who died attempting to save the colours at Isandhlwana. Coghill was an Irishman from Castletownshend, County Cork. He died in 2000 at the age of 70. Headmasters after him included Brian Head (1989–90), a Yorkshireman named David Edward Hanson (1990), a Scotsman, John Caithness (1990–2000) and then an Englishman by the name of Neil Wainwright Gardner.
Aberlour House enjoyed a short-lived fillip in 1993 when a local rival Blairmore School shut down. Aberlour took in many Blairmore pupils, appropriated Blairmore's scholarship boards and adopted Blairmore's Highland games event.
Aberlour House never appended the word 'school' to its name even when it was separate from Gordonstoun. Although the Preparatory School still keeps its name (Aberlour House) it is now located within the grounds of Gordonstoun School.