The Sydney Commonwealth Parliament Offices (CPO) 
provides accommodation for Australian Federal Government 
Ministerial and parliamentary staff including Sydney-based 
Ministers, the Leader of the Opposition, visiting Senators 
and Members and the Prime Minister. It also provides an 
important portal for Australian Parliamentarians when 
meeting and collaborating with guests.  
Located across three floors of the Architectus + Ingenhoven 
designed office tower 1 Bligh Street, Sydney, the offices 
were designed to provide a contemporary and 
environmentally sustainable workplace that is user-flexible 
and highly secure. 
The aspiration of the brief was to ensure the fit-out 
reflected the unique nature and character of Sydney, while 
maintaining a timelessness and value for money that would 
endure a significant lease period. 
This aspiration was realised on qualities such as natural 
daylight, maximising views, transparency deep within the 
plan, local use of materials and importantly local 
craftsmanship whilst embracing the unique attributes of the 
building.
A high quality design standard which aligned with a 
functional material aesthetic and facilitated cultural change 
was required while achieving a high degree of security and 
amenity within the context of a contemporary office fit-out.
Technical challenges included the separation of various 
occupants all sharing a building yet meeting stringent 
acoustic and protocol requirements. Access control regimes 
and their management and operation were paramount, 
including necessary public accessibility, restriction and 
privilege hierarchies. 
The radial plan configuration was developed to optimise the 
perimeter allowing the large number of individual suites to 
access views. The plan was also layered to provide further 
separation, locating the most public space around 1 Bligh’s 
central atrium and lifts, followed by a layer of shared public 
and private accommodation with the most secure areas to 
the perimeter.  
Architectus is a top-tier Australian architecture and design studio specialising in commercial, education, interiors, public, residential, transport, urban design and planning.
Our insightful and human-centric design approach is combined with a collaborative ethos to create unique places that are exemplars of elegance, function and sustainability. We operate as a single studio with our creative team based in Sydney, Melbourne, Brisbane, Adelaide and Perth.
We enjoy a strong collaborative relationship with our associated New Zealand studios located in Auckland and Christchurch.
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