about de.arch

Our team are highly skilled in all forms of residential, commercial architecture and interior design.

We specialise in residential projects, including new builds, alterations & additions, specialist disability accommodation (SDA).

At de.arch we design homes that are practical, thoughtful and truly reflect the people who live in them – creating spaces that feel lasting and personal, whatever the budget or scale.

We work side by side with you, helping you navigate the tricky parts of design and construction. By keeping things open and collaborative, we aim to turn the process into one of the most enjoyable, rewarding, and truly life-changing experiences.

Design that fits life. Not the other way around.

Our practice values diversity and inclusivity, which is reflected in the thoughtful design and delivery of Specialist Disability Accommodation (SDA) homes tailored to meet high physical support needs across Melbourne.

pronounced 'de arc'

We have extensive experience in various types of commercial projects, such as workplace and retail fit-outs, refurbishments of lobby and common areas, end-of-trip facilities and more.

We take great pleasure in not only meeting but surpassing our clients’ expectations by working closely with them throughout the design journey, believing this approach yields the most successful outcomes. You can check out more of our in progress projects on Instagram!

There is no greater satisfaction than transforming how people live and work within their spaces.

Areas in Melbourne and Surrounds we have serviced include;

City of Boorondara; Ashburton, Balwyn North, Camberwell, Hawthorn, Hawthorn East.

City of Port Phillip; Albert Park, Balaclava, Elwood, Middle Park, Port Melbourne, St Kilda West, South Melbourne.

City of Bayside; Brighton East, Hampton, Highett.

City of Glen Eira; Caulfield North, Elsternwick, Murrumbeena.

City of Monash; Burwood, Glen Waverley, Hughesdale, Mount Waverley, Oakleigh, Oakleigh East.

Maribyrnong City; Footscray, Maidstone, Yarraville.

Moonee Valley; Aberfeldie, Ascot Vale, Essendon, Moonee Ponds.

Hobsons Bay; Newport, Williamstown.

Frankston City; Frankston South

City of Ballarat; Lake Wendouree

City of Greater Geelong; Barwon Heads

From new builds to extensive renovations and interior refurbishments, we excel at enhancing the functionality and value of every space. By taking the time to understand our clients’ lifestyles and requirements, we ensure each project is personalized and meaningful.

There is no greater satisfaction than transforming how people live and work within their spaces. We are driven by the process of seeing a project come to life—from its early concept to the final built form—knowing that it will positively impact its occupants for years to come.

Our Team

Peita De Trizio

DIRECTOR | ARCHITECT ·

Peita is the founding director and principal architect at de.arch, bringing a wealth of experience across residential, commercial fitouts, healthcare, and specialist disability accommodation (SDA) design. Her deep understanding of these areas, combined with a forward-thinking perspective, allows her to approach each project with both expertise and creativity. Passionate about the transformative power of architecture, Peita uses design as a tool to create positive change and enhance people’s lives. Dedicated to guiding clients through the entire building process, Peita prioritizes education and collaboration. Her work with consulting practices like 'My Architect' fosters a seamless connection between clients and architects, helping to navigate the complexities of design and construction. With her extensive knowledge of all aspects of residential architecture—from single homes to multi-residential projects—and expertise in commercial fitouts and healthcare design, Peita offers insight, expertise, and a unique perspective on every project she undertakes.

Jessica Pile

DIRECTOR | ARCHITECT ·

As the studio's co-director, Jessica brings extensive experience in architectural design and project delivery, spanning bespoke residential, low-rise multi-residential projects, large-scale commercial and retail developments, and community, educational, and recreational facilities. Her diverse background has given her a deep appreciation for the value architecture can bring to any project, regardless of scale. Jessica excels at transforming the practical requirements of a brief into spaces that not only meet but exceed expectations, going beyond the brief to create innovative, future-focused designs that elevate the built environment. Jessica is particularly passionate about creating inclusive and accessible architecture and interiors, seamlessly integrated into the building so they feel natural and unobtrusive. Her approach blends practicality with inspiring, meaningful design. In addition to her architectural practice, Jessica serves as an APE Examiner for the Architects Board of Victoria, where she assesses the competencies of aspiring architects in the region.

Tim Randall

PROJECT ARCHITECT ·

Originally from Hobart and now based along the Birrarung in Melbourne, Tim is a registered architect with more than eight years of industry experience, delivering projects from inception through to completion. He sees architecture not as an object or aesthetic pursuit, but as a formation of people - a vessel that reflects shared aspirations and supports communities to thrive. Tim’s work is grounded in empathy and collaboration. With extensive experience designing for people with disabilities, he brings that same sensitivity and insight to projects of all types and scales. His registered architect status reflects not only his technical capability but also his commitment to delivering thoughtful, high-quality outcomes. He approaches each project by first listening - seeking to understand the needs and values of those involved - before shaping a design response that unites them. He is passionate about architecture’s ability to positively influence lives and enjoys the tangible, hands-on nature of practice. Beyond the studio, Tim is a curious and engaged individual who finds inspiration in teaching, politics, community networks, live music, travel, and cycling.

Damian Camilleri

GRADUATE OF ARCHITECTURE ·

Driven by a commitment to sustainability and thoughtful design, Damian approaches architecture as both a creative and responsible pursuit. His work explores how materials, systems, and construction processes can align with natural carbon cycles and circular economies - creating enduring connections between people, buildings, and the planet. With over five years of post-graduate experience and a decade in the profession, Damian has developed strong technical foundations in construction documentation, BIM, and building code interpretation. He is deeply engaged with the craft of architecture, striving to do the simple things extraordinarily well - an ethos that underpins his approach to every project. Damian’s curiosity extends beyond the technical; he’s fascinated by how architecture shapes social connection and community well-being. He believes buildings should give back - acting as spaces for engagement, resilience, and renewal. Damian values the potential of design to embrace imperfection and promote sustainability through reuse and reinvention.

Caitlin Baker

STUDENT OF ARCHITECTURE ·

about de.arch

Our team are highly skilled in all forms of residential, commercial architecture and interior design.

We specialise in residential projects, including new builds, alterations & additions, specialist disability accommodation (SDA).

pronounced 'de arc'

We have extensive experience in various types of commercial projects, such as workplace and retail fit-outs, refurbishments of lobby and common areas, end-of-trip facilities and more.