Gladstone Post Office, Heritage postal building in Goondoon Street, Gladstone, Australia

Gladstone Post Office is a single-storeyed rendered brick building at 33 Goondoon Street, Gladstone, with symmetrically arranged entrance porches on either side of its front elevation. Built in 1932, it has a smaller 66-foot frontage to Goondoon Street than the 1870s building it replaced. It was designed by the office of the Federal Director-General of Works, Canberra, and no longer includes quarters for the post master or telegraph master.

The building was constructed in 1932 by relief workers as a purpose-built facility for the Commonwealth Postmaster-General's Department. It replaced earlier postal and telegraph offices that occupied the same location, marking a modernization of postal services during that period.

The former post office is one of only seven masonry 'twin porch' post offices built in Queensland between 1923 and 1932, though 25 timber versions of similar design were also erected. It shows the move from timber to masonry and from Queensland Works Department to Commonwealth Works Department design. The building no longer operates as a post office.

The building sits on a central street in town and is easy to find and access for postal needs. The layout with separate entrance areas helps visitors navigate the different service functions smoothly.

The clock tower belonged to the 1870s timber post and telegraph building, not to the 1932 structure. It was demolished first to clear the site, and the post office shared the telegraph office's quarters until the new building opened. Only seven masonry post offices of this twin-porch type were built in Queensland between 1923 and 1932.