Reddam House
Built & Inspired Education
From humble beginnings to a powerhouse practice, AJC has been thinking about, and shaping modern Sydney in both subtle and profound ways for seven decades.
Originally formed in 1956 with the partnership of friends John Allen and Russell Jack, who were joined in 1965 by Keith Cottier, and the Sydney studio of Allen Jack+Cottier was born. It became synonymous with creative, spatially inspiring spaces and places.
True to that legacy, today AJC works across even more sectors and scales, from education and commercial projects to luxury and affordable residential developments, and master planning for urban growth and renewal.
We’ve earned scores of awards locally and internationally, but more importantly, we’re proud to say our work has changed the way people live, learn, work and play, with buildings and precincts perfectly tuned to their purpose and place.
The Centre for Science & Art, Abbotsleigh Senior School
88 Waterloo Road, Billbergia and Legacy Property
Macquarie Park Innovation Precinct
Lane Cove Sport and Recreation Centre
Our Story
AJC has been instrumental in helping shape the growth of Sydney both as a consultant to planning authorities, and through its own exemplar projects, setting benchmarks for liveability and urban density.
Awards
Since receiving our first award in 1957, AJC has been nationally and internationally recognised for our leadership and impact.
News: July 2025
Reddam House North Shore Finalist in Two UDIA Awards
This transformative project by AJC Architects, in collaboration with Inspired Education and Built, has reimagined the former Simsmetal House into a vibrant new K–12 campus...
News: July 2025
AJC Projects Shortlisted in 2025 National Architecture Awards
Only five projects across Australia have been recognised in the Heritage category this year, and we are honoured that Reddam House North Shore is among...
News: July 2025
AJC Architects announces the appointment of Rodney Drayton as Chief Operating Officer
A registered architect and accomplished executive, Rodney brings over 25 years of experience leading design-focused businesses through growth, transformation, and strategic delivery — both in...
News: July 2025
AJC Shortlisted for World Architecture Festival 2025
Located in the former Simsmetal House in North Sydney, this project reimagines a 1970s Harry Seidler-designed commercial building into a contemporary, connected school campus for...
News: July 2025
AJC announces Dua Green as Chief Executive Officer; with Michael Heenan continuing as Chair of the Board and Design Lead
AJC is proud to announce the appointment of Dua Green as Chief Executive Officer, marking a dynamic new chapter in the studio’s evolution. Dua brings...
News: June 2025
AJC and LENSW Co-Host Site Visit for Award-Winning Reddam House North Shore
This adaptive reuse project, which took out the 2025 NSW Architecture Award for Heritage – Creative Adaptation, transforms a modernist commercial building into a vibrant,...
News: June 2025
Awarded by the AIA: Reddam House North Shore Honoured for Heritage Design
Located on the land of the Cammeraygal People of the Eora Nation, this project exemplifies how adaptive reuse can meet contemporary needs while honouring the...
News: June 2025
Moore Park Gardens Recognised with NSW Enduring Architecture Award
The Enduring Architecture Award recognises significant, long-lasting and innovative architecture, with typically more than 25 years having passed since the completion of construction. It celebrates...
News: June 2025
AJC Architects Designs Transformative Expansion for PCYC Mount Druitt
The $25.4 million expansion, funded by the NSW Government’s Western Sydney Infrastructure Grants (WSIG) program, will more than double the size of the existing PCYC...
News: June 2025
AJC is pleased to share the latest construction update on Lachlan’s Line (The Macquarie Collection)
Work on the apartment slabs is progressing well as the structure continues to rise. In the basement, formwork removal is currently underway, and structural work...
News: June 2025
DA Approved: AJC Unveils Design Vision for 88 Waterloo Development, Macquarie Park
A two- and three-storey brick podium wraps around the street frontages, featuring residential lobbies, retail, and flexible “multi-generational” maisonette-style apartments, each with access both from...
News: May 2025
Topping Out Lane Cove Sports and Recreation Centre
Sarah Slattery and Scott Norton from AJC joined Councillors and Council staff from the Lane Cove Council, the team from ADCO Constructions and Forge Global to...