The Whiteley Mission House from New Plymouth, New Zealand, the only surviving building of the former Grey Institute, is one a few examples of mission-style architecture from the early period of European settlement.

[3] Similar to the boys' school, the rimu building included elements of the Gothic Revival architecture, with two steep gables and arched windows in the front façade.

Built in board and battens the school had a roof of timber shingles and included a dining and sitting room, a wash house and a dormitory for 25 students.

In June, the former girls' school building was temporarily hired by the government to house Maori allies, removed from their district in order to avoid charges of complicity with "the rebels".

Then, on 13 February 1869, while riding from New Plymouth to White Cliffs, Whiteley, who had openly declared his support for the government, fell victim to a Hauhau ambush, and was shot.

[1] Later, in 1940, the Mission House was renovated and reopened as Rangiatea College, a boarding school of domestic science and hygiene for Maori girls until 1959, when new premises were established at Spotswood.