The design was originally prepared for a brick post office building at Rutherglen by John James Clark for the Public Works Department the same year (since demolished).

[1] During the early 1900s a number of public meetings were held to discuss further alterations to the post office, with the Camperdown Chronicle describing the building as "a depressing spectacle and a sorry sort of housing for what may be termed the nerve centre of the commercial life of the district - the whole thing is unsightly, unhealthy and inadequate".

The 1909 works included extensive additions and alterations generally along the southern and eastern sides of the building, including demolition of the majority of the 1880s additions (with the exception of the projecting bay to Church Street); construction of a double-height corner bay for the public space and counter area with mail room behind; arcaded verandah to new post office facing Church Street; addition at southwest corner of building to enlarge private sitting room; construction of new verandah to protect new private entrance from Manifold Street (conversion of original window to door); rear kitchen wing added to provide new pantry and bathroom.

[1] In c. 1990s, Australia Post livery was updated including new signage; the door at northeast corner of mail room converted to window; a cast iron pillarbox installed in front of entrance; additional noticeboards were installed in front verandah; a non-original door in north wall of post office box room infilled with bluestone; conservation works on bluestone including repointing; the post office counter was relocated further north increasing retail shop floor area; general interior refurbishment was undertaken; downpipes and guttering renewed; two public telephone booths installed in northeast corner of site; and Cyclone wire fence constructed across southern boundary.

[1] The irregularly-shaped cranked site is a prominent location in the centre of the main commercial and retail precinct, directly opposite Camperdown's landmark clock tower.

Vehicular access to the concreted rear yard is via gates on Church Street, flanked to the north by a non-original brick store and to the south by the post office.

At the western end of the driveway is a free-standing timber-framed bicycle shed and the site area to the west of the main building provides a landscaped outlook to the former quarters.

[1] The original single-storey bluestone building was constructed on an L-shaped plan to address both Manifold and Church streets, however, the majority of the principal south and east elevations have been ensconced by the 1880s and 1909 additions.

The eastern Church Street elevation is distinguished by a gable-ended projecting wing, dating from the 1880s with coupled round-arched windows and diamond gable vent.

The building is accessed via a segmental arched arcade to the street terminated by a corner entrance porch with "ox bow" motif to the pediment and ashlar pilasters surmounted by ball finials.

[1] While the original design intent is largely legible throughout the residential wing of the building, collective alterations and additions have almost completely obscured the 1863 post and telegraph office planning.

Camperdown Post Office is an uncommon example of a Federation-era Freestyle Arts and Crafts grafting and reworking of a mid-Victorian Italianate public building, with a high degree of external intactness from these key periods.

Stylistically, the reworked building is an unusual and distinctive graft of Victorian Italianate and Federation Free Style examples, further distinguished by the atypical use of bluestone rather than brick.

[1] This Wikipedia article was originally based on Camperdown Post Office, entry number 106130 in the Australian Heritage Database published by the Commonwealth of Australia 2019 under CC-BY 4.0 licence, accessed on 9 March 2019.