O'Neil + Shirley Architecture

A Natural Evolution

There are moments in a practice’s journey that feel less like change, and more like alignment.

We’re pleased to share that Senior Designer Jacinda Shirley has officially joined the practice as Co-Director. From here forward, we will be known as O’Neil + Shirley Architecture.

Jacinda has long operated at Director level within the studio — leading projects, guiding clients, and ensuring the clarity and delivery we are known for. Her appointment formalises the role she has already been fulfilling across the practice.

For our clients — past, present and future — the way we work remains consistent. You can expect the same considered design process, clear communication, and architectural integrity.

Jacinda brings a refined design sensibility, an exceptional eye for detail, and a rigorous, highly organised approach to every project. She is deeply involved across all stages — from concept through to documentation — ensuring each project is resolved with care.

Paired with Darren’s  architectural language and intuitive creative direction, the partnership reflects a balance of vision and precision.

O’Neil + Shirley Architecture marks the next chapter of the studio — grounded in the values and standards that have always defined our work.

May 06, 2026

Winner of the ADNZ National Award for New Home over 300m² | 2024 Winner of the Master Builders Supreme House of the Year | 2022

© O’Neil Architecture 2024