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About Us

de.arch p/l (pronounced 'de arc') is a Melbourne based Architecture & Interiors studio that specialise in residential, workplace, commercial, retail design projects. Lead by directors Peita De Trizio & Jessica Pile, our passion is simple; we always strive to create functional and considered spaces that truly reflect our clients, have an elegant simplicity, are timeless and unique, regardless of project size or budget. Our belief is that every project is an opportunity to explore new and better ways of living through design. We love creating spaces that not only meet our clients’ needs but exceed their expectations. We enjoy working collaboratively with our clients and sharing the design process as we believe this achieves the most successful outcome. Whether it be a new home, renovation or internal refurbishment, our belief is that every project offers the opportunity to inspire, educate and excite our clients, customising projects to reflect their needs and budget. This requires our highest attention at every stage but most importantly listening to and understanding the nuances of how our clients live and work. Most importantly, we love what we do! To be able to change and improve the way a person lives or works in a space is very rewarding. We’re just as excited to see a project progress as you are, from initial hand sketches to 3D rendered images, to technical drawings to the final built form on site.

Services Provided

Architectural Design, Architectural Drawings, Bathroom Design, Building Design, Dining Room Design, Energy-Efficient Homes, Floor Plans, Green Building, Heritage Building Conservation, Home Additions, Home Renovating, House Plans, Laundry Room Design, Living Room Design, New Home Construction, Project Management, Site Preparation, Space Planning, Staircase Design, Sustainable Design, Tiny House Construction, Kitchen Design, Kitchen Renovating, Landscape Plans, Custom Homes, Basement Renovation, Home Extensions, Home Renovation

Areas Served

South Melbourne, Melbourne, Hawthorn, Port Melbourne, Eaglemont, Richmond, Ballarat, Camberwell, Elwood, St Kilda, Northcote, Kensington, Brunswick, Healesville, Middle Park, Balwyn, Hughesdale, Albert Park, Malvern, Prahran, Ashburton, Glen Iris, Caulfield, Ascot Vale, Byron Bay, North Melbourne, Edithvale, Moonee Ponds, Mount Waverley, Carlton, Murrumbeena, Williamstown


ARBV registered Australian Institute of Architects (A+ membership)

Professional Information

Registration no.18242 Registration no.17632


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Business Details

Business Name


Phone Number

(03) 9042 5349


307/87 Gladstone Street
South Melbourne, Victoria 3205

Typical Job Cost

AUD $400,000 - 1,500,000


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