The Castlereagh Apartments by Tony Owen Partners is a 16 storey apartment building located in the bustling heart of Sydney’s CBD. It contains 55 luxury apartments, retail and office space.
Courtesy of Tony Owen Partners
The 5 level podium is predominantly precast concrete. This was chosen as it is consistent with a number of the surrounding buildings which have a solid expression predominantly in concrete. The podium takes the form of angled widow boxes. These boxes are angled to maximise sun penetration and create a stark modelling in sunlight. This articulation creates a lively contemporary expression which reflects its surroundings.
Courtesy of Tony Owen Partners
The majority of the façade is clad in adjustable metal louvre screens in a copper tone. These screens provide shading to reduce heat load as well as screen balconies for privacy and aesthetic appearance. The screens are unique in that they sometimes span 2 levels. This is achieved using an ingenious track system to avoid clashes. The mixture of screens of different heights creates a unique mosaic patterning. The building contains a 6m x 6m ventilation shaft. This shaft provides natural ventilation to the units.
Project Info
Architects: Tony Owen Partners
Country: Sydney, Australia
Area: 5000 m²
Year: 2012
Photographs: Courtesy of Tony Owen Partners
Madeline Brooks is a Projects Editor at Arch2O, where she has been shaping and refining architectural content since March 2024. With over a decade of experience in editorial work, she has curated, revised, and published an array of projects covering architecture, urbanism, and public space design. A graduate of the Harvard University Graduate School of Design, Madeline brings a strong academic foundation and a discerning editorial eye to each piece she oversees. Since joining Arch2O, she has played a pivotal role in shaping the platform’s editorial direction, with a focus on sustainability, social relevance, and cutting-edge design. Madeline excels at translating complex architectural ideas into clear, engaging stories that resonate with both industry professionals and general readers. She works closely with architects, designers, and global contributors to ensure every project is presented with clarity, depth, and compelling visual narrative. Her editorial leadership continues to elevate Arch2O’s role in global architectural dialogue.