Coogee Surf Life Saving Club
Randwick City Council

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.

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: March 2025

Newington College’s Rural Campus, designed by AJC Architects, has welcomed its first students.

Located on a 200-hectare rural property on Dunghutti Country, the campus will serve as the home of Newington’s visionary social service immersion and outdoor education...

In the Media: March 2025

Designing School With Students In Mind

School design is rapidly evolving as architects and educators combine to create spaces that enhance students’ learning. “We’ve seen a shift in educational environments in...

News: March 2025

International Women’s Day 2025

At AJC, we are committed to fostering greater inclusion and diversity across our Sydney studio. Today, 48% of our workforce are women, and in 2023,...

In the Media: March 2025

AJC Architects Featured In Education Matters Magazine

The new campus will offer state-of-the-art facilities including performance spaces, a theatre, modern classrooms, high-tech science and design labs, music rooms, multiple libraries, a gym,...

News: February 2025

Apt.Residential Breaks Ground At Landmark Site On Meadowbank Peninsula

Designed by AJC, developed by apt.Residential, the 7,773 sqm site at 1-20 Railway Road is the final piece in the transformation of the Meadowbank peninsula....

In the Media: January 2025

AJC Champions Equity in Design

This resource provides a structured approach to embedding equity into design decisions, ensuring that workplaces, public spaces, and facilities are accessible and empowering for all....

News: December 2024

Announcement: Sarah Slattery Awarded 2024 Byera Hadley Travelling Scholarship

In an exciting recognition of her visionary approach to architecture and urban design, Sarah Slattery, Studio Lead, Design at AJC Architects, has been awarded a...

News: November 2024

AJC joins the conversation at the Living Sectors Summit 2024

  AJC’s Director, Brian Mariotti, shared his expertise as part of a panel discussion on planning reforms and their impact on housing supply. With over...

News: October 2024

AJC ARCHITECTS ANNOUNCES NEW STUDIO LEADERSHIP TEAM

Vera Batalha and Lee Collard have been appointed as Studio Directors, reflecting their significant contributions to the architectural landscape and their ongoing leadership within AJC....

News: September 2024

AJC Architects Transforming Heritage: New Reddam House Campus in North Sydney into a state-of-the-art K-12 school campus.

In collaboration with Inspired Education, and Australian-owned property developer and digital-first contractor Built, AJC is managing the upgrade and transformation of this iconic building into...

News: September 2024

AJC Hosts Inaugural Event to Showcase Australian Innovation Ahead of the World Architecture Festival

The exclusive event attracted over 80 guests, including prominent figures from leading architectural firms, who gathered to present their innovative projects and receive expert feedback....

News: August 2024

Newington College’s Rural Campus by AJC Architects Approved, Set to Champion Low-Carbon Design

Located on a 200-hectare rural property on Dunghutti Country, the campus will be the home of Newington’s visionary social service immersion and outdoor education programmes....