It was designed by Gibbs, Finlay & Morsby in conjunction with Thomas Blair Moncrieff Wightman and was built in 1926 by J L Green & Sons.

Other contemporaneous redevelopments near the site included the Commonwealth Bank (1929), Colonial Mutual Life (1930–31) and the AMP building (1930–34).

[1] Designed by Melbourne architects Gibbs, Finlay and Morsby, in conjunction with Thomas Blair Moncrieff Wightman, Brisbane, the new seven storey building provided 114 offices, a basement and caretaker's quarters on the roof.

The tender of JL Green and Sons, contractors, was accepted in January 1926, the former offices were demolished in February and construction began.

These end window bays project slightly from the rest of the building and have plain, flanking giant order pilasters.

The windows of the front facade are still the original pattern with crossed diagonal glazing bars in their upper portion with four vertical panes below.

The original caretaker's quarters is now used as office space and opens to a small roof terrace behind the parapet.

[1] National Mutual Life Building was listed on the Queensland Heritage Register on 21 October 1992 having satisfied the following criteria.