Antrim House is a two-storey, 18-room Italianate building largely constructed from totara.

The interior has pressed metal ceilings; hand-crafted kauri panels and staircase; and leadlight and stained glass windows.

[1] Antrim House was built on Boulcott Street in 1905 for Robert Hannah and his family.

In 1938 it was sold and continued use as a hotel until 1949, when it would be purchased by the government as accommodation for important visitors, this did not go ahead and instead it was used as a hostel for public servants.

[1] In 1977 the hostel closed and the government agreed for the building to become the headquarters of the New Zealand Historic Places Trust.