• Conrad Johnston Director

    Registered architect (NSW) 8270
    Class 2 Certification, PDP0000646
    Member, Australian Institute of Architects (AIA)
    B.Sc.Arch, B.Arch Hon. (USYD)


    As director and founder of Studio Johnston, Conrad’s track record speaks for itself. His design philosophy is based on people, narrative and place. His aesthetic is a balance of bold design, refined details and earthy material choices. Conrad’s vision integrates the many elements of architecture - light, landscape, form and spatial quality – into a cohesive whole that’s much more than the sum of its parts. 

  • Stefanie Robinson Project Director & Practice Manager

    M.Arch (UC)

    Stefanie is a skilled all-rounder with a speciality in education environments. Working across all studio projects from master planning to private residences, her superpowers are construction details and drawings, and DA documentation. Recent projects include luxury apartments in Clovelly, homes in Queens Park and Rose Bay and our competition-winning design for 191 apartments in Alexandria called Amara. Out of the studio, Stefanie’s interests include pasta making, painting, lawn bowls and gardening.        

  • Matthew Mar Senior Architect

    B.Arch, B.ScArch (USYD)

    Matthew has worked on a diverse range of projects and enjoys collaborating with team and client to conceptualise, resolve designs and deliver projects through construction. He sees buildings as a social celebration of thought, space and people.

    Recent projects include Royale - Luxury Residences at Randwick as well as other Multi-unit and Mixed Use developments in the Studio. Other notable projects he has had the opportunity to deliver in the past include; The Mint – Historic Houses Trust, The West Hotel – Hilton Curio, The Hub – Macquarie Bank

    When not behind the desk, Matthew enjoys what the earth has to offer from the garden to the sea, on the odd occasion when out fishing early morning in the national park.

  • Kate Pereira Studio Operations Manager

    B.ScArch (USYD)

    An experienced project manager, Kate combines her love of design with a near obsession for organising processes to oversee the everyday operations at Studio Johnston, including contract administration, HR and marketing. Out of the studio you will find her with her nose in a book or planning her next travel adventure. 

  • Elkie Slater Architect & Interior Designer

    M.Arch (UoN) B.Des.Arch (UoN)

    Elkie has worked in Melbourne and Sydney with experience spanning luxury homes and high-rise towers in Architecture and refined interior design. She has a keen eye for detail, and a desire to create spaces that are as joyous and nourishing as they are pragmatic. Harnessing contrasting materials and forms to layer complexity and depth into design.

    Influenced by fashion and art; in her spare time she frequents wine bars, galleries and spends time by the sea.

  • Antoine Portier Graduate of Architecture

    M.Arch, B.Des.Arch (USYD)

    Antoine joined us as a graduate with heritage experience and the Brian Patrick Keirnan Prize Student Award from the AIA. Recent projects include design schematics and documentation for multi-residential projects in Lewisham and South Coogee. Outside the studio, Antione is something of a renaissance man: a keen bushwalker and frequenter of art galleries. 

  • Hanya Hoang Graduate of Architecture

    M.Arch (USYD), B.Envs (UoM)

    Hanya joined us as a recent graduate, having previously worked on commercial projects within the educational and healthcare sectors. Growing up in Russia with Vietnamese heritage, she brings a unique blend of cultural perspectives and professional experiences to her work.

    Hanya finds her inspiration in nature; outside of work, she can be found either on a hike or enjoying a book with an iced latte by the beach.

  • Chris Stelzer Student

    B.Des.Arch (USYD)-current

    Chris joined Studio Johnston as a student eager for his first taste of practice. His early studies have already opened doors for travel abroad, completing a research trip to Bangladesh and will shortly be travelling to the Philippines. To earn his stripes, Chris has initially focused on our smaller projects within the office and has now started to be exposed to larger multi-res projects. Chris' time outside the office typically gets divided between the great outdoors and an interesting (non-fiction) book

  • Georgios Anagnostou Studio Director

    Registered Architect (NSW) 12015

    Dipl. Ing. Arch, University of Applied Sciences, Berlin

    Georgios is a seasoned architect with over 20 years of experience. As Studio Director of Studio Johnston, he brings a broad expertise in architectural practice, project delivery, design and tectonics as well as his strong dedication to social and environmental sustainability to the practice.

    He has been involved in numerous award-winning international and local projects of various sizes and typologies, including one of Australia's largest mass-timber multi-residential developments.

    Beyond architectural practice, Georgios is active in academia, teaching and industry discourse.

  • Stefania Reynolds Project Director & Head of Interiors

    Art Foundation (Canterbury University), B.ScArch (Bath Uni), M.Arch (UNSW)

    Visual artist, project director and interior designer, Stefania has studied art and architecture in Greece, France, the UK and Australia, receiving her honours from Bath University and her Masters of Architecture from the UNSW. With an eye for detail, she has a knack for combining modern and traditional design elements to create unique designs. She works across different scales, from bespoke homes to multi-residential apartments, workplaces and hotels.
    Stefania is dedicated to creating spaces that are both aesthetic and functional, and she is always looking for new ways to create innovative and sustainable designs.

  • Alan Powell Project Director & Quality Manager

    Registered architect (NSW) 9881 & (Tas) 1147
    Class 2 Certification, DEP0001220 
    M.Arch, B.DesArch (USYD)

    Working across a range of building typologies, from high-rise urban developments to public projects and bespoke homes, Alan is an experienced conceptual designer and project manager. Key projects include the award-winning Waranara Early Learning Centre at Green Square, the Cook Park Amenities in Rockdale, and in development Midtown Macquarie Park C3. Outside of work Alan heads for the bush - to mountain bike, camp or ‘forest bathe’ with his family.

  • Prudence Duncan Architect

    M.Arch, B.Des.Arch (UTS)

    Prudence joined us as a newly registered architect. She has experience in high-end single residential and childcare projects and has worked in both Sydney and London. More recently, she has led a multi-residential project in Summer Hill and is in the early stages of a bespoke house in Balmain and a multi-residential project in Randwick. Out of the studio, Prudence can be found at the beach with a good book or at the pub with friends.

  • Jonathan Tong Graduate of Architecture

    B.Arch (UNSW), M.Arch Hon. 1 (USYD)

    Artist, musician and filmmaker are just three of the creative hats that Jonathan wears. Having joined the studio as a graduate, he has deep-dived into our projects to help streamline documentation at the back end, while illustrating schematic design at the front end with graphics, animation and film. Recent projects include multi-residential projects in Balmain and Lewisham in Sydney’s Inner West. 

  • Oliver Guan Graduate of Architecture

    M.Arch (USYD), B.Des.Arch (Hons)

    Recently graduated, Oliver has an interest in sustainable architecture, technological advancements and cohabitation. Recent projects include single dwellings and multi-residential projects. Outside of work, he enjoys photography, exploring nature and the restaurants of Sydney.

  • Olivia D'Souza Graduate of Architecture

    M.Arch (USYD), B.Des.Arch (Hons)

    Olivia joined Studio Johnston as a recent graduate with a passion for sustainable architecture and is committed to placing the lived experience at the centre of design. Drawing on her experiences living in various cities and regions across Australia, Olivia brings a diverse perspective to her work.

    Outside of the office, she loves spending time in nature and can often be found exploring the underwater ecosystems off Sydney’s many beaches.