 Hillview has historical significance, through several of the Governors as significant events related to the Government of the State took place there.The place is significant for its association with a number of other prominent figures in NSW including Charles Moore, attributed with the garden layout, Professor Waterhouse, attributed with major changes to the garden and James Barnet, attributed with the design of the house.Prior to its Government acquisition the place was owned by Richardson, who appears to have built the house.