Elizabeth Macarthur-Onslow commissioned plans for the Stables in May 1883 and stated in a letter to P.G. King "It will be simply a single building with 6 stalls and 2 boxes very well built and chained and all fittings to be very comfortable. I don't see the necessity for grand stables."
The architect was H.C. Kent; the builder Charles Furner; and the carpenter Herbert English. The stables were completed in 1885 but in 1900 2 carriage bays were added to the stables.
In the 1950s the horse stalls were removed and a concrete slab installed transforming the stables into a dairy, However during the 1960s the dairy fixtures were removed and the stables were then used for other activities including as a maintenance shed and the garaging of tractors.
Over the years the site has featured in the movies "Smiley" and "Smiley Gets a Gun". During the 1970s the stables were leased by the Camden Theatre Group Co--operative as a rehearsal space and the "Summer of the Seventeenth Doll" was performed there in 1981.
During the 1990s the building deteriorated, particularly after a large tree fell on the western section causing considerable damage. However in 1995 Stage 1 of the restoration work commenced under supervising architect Peter Myers. The restoration work included repairs to the carriage house roof; removal of the concrete slab; repairs to drainage and brick paving was partially replaced in the stables.
In 2015 the Camden Park Preservation Committee completed Stage 2 of the restoration under Howard Tanner as consulting architect. This work included the reconstruction and repairs to the carriage house doors and a wooden floating floor constructed above the original floor. The verandah was stabilised and new guttering installed and the original cistern enlived. A kitchen was constructed in what had once been the tack room.