Argyle House, Newcastle Argyle House, Newcastle Argyle House is a heritage-listed former office building and now nightclub at Argyle Street, Newcastle, City of Newcastle, New South Wales, Australia. It was built from 1860. It was also known as the Australian Agricultural Company Headquarters. It was added to the New South Wales State Heritage Register on 2 April 1999. This complex of buildings has grown over about 125 years. The original building is believed to date from the 1860s. A second building, joined by a covered way, was designed by Frederick Menkens and built 1903. Additions to this second building were designed by Frederick
Newcastle, KwaZulu-Natal became the ISCOR South Works and subsequently decommissioned the plant after the ISCOR North Works was built, now Arcelor Mittal Newcastle Works today. Today, Newcastle is the main commercial and industrial center in northern KwaZulu-Natal, and is the provinces third largest city. Continuous development has seen this city being a leader in its class and the municipality is striving to make the city sustainable by 2030. The city is the gateway to the Zulu Kingdom from the Free State and Mpumalanga. Located at approximately above sea level, Newcastle is found in the North West corner of the province of KwaZulu-Natal