Conrad Gargett was an Australian architecture and design practice founded in Brisbane in 1890, one of Queensland's earliest architectural firms.^[1] The practice operated out of studios in Brisbane, Sydney, Melbourne, Gold Coast, Townsville and Addis Ababa. In 2023, it merged with Australian architecture firm, Architectus.

Conrad Gargett Architecture was established as HW Atkinson in 1890 by Henry Wallace Atkinson with the winning design for the new Brisbane Head Fire Station.^[1] Charles McLay joined Atkinson to form the partnership HW Atkinson & Chas McLay in 1907.^[2] The practice subsequently assumed the position of Diocesan Architect to the Anglican Church, designing several schools and churches in South East Queensland.^[3] Following the death of McLay in 1918, the practice was renamed Atkinson & Conrad when Arnold Conrad became a partner. The new firm was noted for its use of the distinctive Spanish Mission style in many of its projects.^[4] The practice was also appointed to the position of Hospital Architect by various hospital boards and played a large role in the design of hospitals in Queensland between 1920–80, including extensive projects at the Royal Brisbane Hospital, South Brisbane Auxiliary Hospital (now Princess Alexandra Hospital), Prince Charles Hospital and Gold Coast Hospital.^[5] Following their appointment in 1926 as architects to the Brisbane and South Coast Hospital Board, the practice took on a new partner Lange Leopold Powell becoming Atkinson, Powell & Conrad.

During the post-war era, the firm now called AH Conrad & TBF Gargett (Thomas Brenan Femister Gargett having become a partner) became a prominent designer of commercial office towers in the Brisbane CBD. Most notable of these were the SGIO Building including the SGIO Theatre (now Suncorp Metway Plaza) and head offices for three of the big four banks.^[1] The MLC building, designed in 1955 with Bates Smart, was one of the first commercial office buildings to be built in the undecorated, modern style in Brisbane.^[6]: 137

In 2017, a book titled Conrad Gargett was published detailing the history of the firm between 1890 and 2015. The book was edited by Robert Riddel, and attempts to provide a broader historical and architectural context to the various phases in which the practice has operated.^[7]

Conrad Gargett formed after Conrad Gargett Architecture undertook a series of mergers with Riddel Architecture (2012) and Ancher Mortlock Woolley (2013).^[8] The contemporary firm is a multi-disciplinary practice, which specialises in health, education, heritage and defence.^[9][10]

Riddel Architecture was established in 1982 by Robert Riddel.^[11] The Brisbane-based practice focused on heritage, conservation and adaptive reuse projects.^[11] Notable works by the firm include the restoration and adaptive re-use of Brisbane's Customs House, the former Wests Furniture Showroom and the former Queensland National Bank at 308 Queen Street (in association with Donovan Hill).^[11]

Ancher Mortlock Woolley, initially called Ancher Mortlock & Murray, was established in 1946 by Sydney Ancher, Bryce Mortlock and Stuart Murray.^[12] The Sydney-based practice was later joined by Ken Woolley in 1964. The practice designed modern structures, winning both the Sir Zelman Cowen Award for Public Architecture and the Robin Boyd Award for Residential Architecture.^[13] Notable projects by the practice include Town Hall House and Sydney Square (1977) and more recently, the Royal Agricultural Showground Exhibition Halls and restoration of the State Library of Victoria.^[13]

As at 2022, Conrad Gargett employed over 200 staff and worked in varying scales and sectors including commercial, community and civic, defence, education and research, health, heritage, infrastructure, justice, residential, retail and Hospitality, seniors living, sport and leisure, transport, urban design and masterplanning, and workplace and interior design.^[14][15]

On 5 April 2023, it was announced that Conrad Gargett would merge with another large Australian practice Architectus, to create a 'super firm' of over 700 employees.^[16][17]

Conrad Gargett has designed some of Australia's landmark buildings, predominately in Queensland, including the following major architectural projects:^[18][19][20]

• Architecture of Australia