The Toowoomba Post Office is located on Margaret Street, near one of the main intersections in Toowoomba. It is sited adjacent to the
Toowoomba Court House and complements it in style, form and material. These two buildings, together with the Police Station in Neil Street form a precinct of Government buildings, creating a landmark in the streetscape. The Post Office comprises a two-storeyed front section with rear wings at either side which are also two-storeyed. Single storeyed extensions project from the rear of each of the wings. The originally open space formed by the U-shape of the front section and wings is covered with a
flat roof with a sky light in the centre. The front of the building is symmetrically designed around a central clock tower which displays four faces. The front
facade and the external side of the western wing are faced with pale yellow sandstone, whilst the rear wings are rendered. The building dominates the site which is asphalted at the rear and paved with gardens down each side. The front section comprises the central projecting bay of the clock tower flanked by
arcades with projecting sections at each end forming corner entrances. A series of arches divided by engaged
pilasters with egg and dart moulding to the capitals are located across the face of each arcade. Simple metal balustrades with square profile
balusters are located within each arch, and
keystones are located above, at the centre of each arch. The end and central bays also have arched openings, with drip moulds above those at each end, and a key stone above the central arch. Quoins are located on the corners of each of the bays. There are three entrances into the building; two which are set diagonally at each corner, and a central one under the clock tower. All comprise double timber doors with large arched fanlights above. All doors lead into the post office service area which has been substantially altered. It now consists of a service counter running along the east–west axis with a display area in front. The first level repeats the pattern of the ground level, with verandahs supported by stone
columns with egg and dart moulding, separated by the end and central projecting bays are, which are enclosed. The end bays have a pair of tall, thin windows and the central bay has a more decorative arched window surrounded by a series of carved mouldings. The main section of the building has a corrugated iron hipped roof, with decorative stone and timber
brackets evenly spaced underneath the
eaves. The central clock tower projects through the roof and comprises three sections. The base has decorative panels featuring a carved repetitive arch pattern. This is surmounted by the central section in which the clockfaces are located and an upper section of
cornice and pierced parapet. Engaged pilasters rise through the base and central sections and are capped with carved acanthus leaves. The eastern facade is rendered and has a side entrance contained within a recess which has a verandah at the second level. Arched timber valances are located above the ground and first floor levels and a balustrade the same as those at the front is located on the first level. Apart from this section, the eastern side is enclosed, with a variety of windows located along its length. The western facade has an arcade at ground level which contains post boxes and private mail boxes. The sandstone of the front facade wraps partially around the western facade, with a rendered finish to the remainder of the wing. The double timber doors and winch of an early loading bay survive on the first level. Internally the building has been substantially altered. The most intact areas are the rooms at the western end on the first level and the clock tower, which still contain early joinery details. All details to other areas of the building have either been removed or are covered by subsequent additions, making it difficult to define the original layout. == Heritage listing ==