[1] In the mid-1920s Dr Sydney Fancourt McDonald introduced to Brisbane the concept of a multi-function office/residential block, comprising professional suites on the ground floor and residential apartments on the levels above.

[1] Arnold Conrad and David Wales (draftsman) worked on the design in 1926, incorporating possibly the first reinforced concrete frame in a multi-storeyed building in Brisbane.

The design also demonstrated Atkinson & Conrad's interest in the Spanish Mission style, which they used in a variety of local buildings, including the Tristram Factory at West End.

[1] The block is serviced by a central elevator, dumb waiter and common L-shaped hallways, which are lined with dark-stained silky oak dado panelling.

Access to the professional suites is via the front entrance, with a separate side entry (at the southwest end of the hallway) reserved for the use of residents.

As a prominent Brisbane example, Craigston is important in demonstrating the principal characteristics of the application of the Spanish Mission style to a multi-storeyed building.

Craigston is important in demonstrating a high degree of technical achievement as possibly the first use of a reinforced concrete frame in a multi-storeyed building in Queensland.