[2] Along with Brickendon Estate, Woolmers was inscribed onto the Australian National Heritage List in November 2007 as being of outstanding national significance because of their close association with the convict consignment system[4][5] and in July 2010 included on the World Heritage list as Australian Convict Sites and amongst the world's[6] " .. best surviving examples of large-scale convict transportation and the colonial expansion of European powers through the presence and labour of convicts" Like most Archer properties, Woolmers was named after an English location or building - Woolmer's Park, in Hertfordshire.

[7] The Woolmers Estate features the National Rose Garden, which was begun in 1999 and fundraised by public donation.

[9] In 1812, Thomas Archer arrived in New South Wales on the ship Guilford, with a letter of introduction from Lord Liverpool[10] acquired from the influence of his uncle, proprietor of the London Courier.

He achieved success as a public servant, starting as a Clerk in the Sydney Commissariat before being appointed acting deputy assistant commissary in November of that year.

By 1819, the very first part of modern Woolmers - the weatherboard section of the main house - was under construction, using wood logged on the property.