Strathfield is a suburb in the Inner West of Sydney, in the state of New South Wales, Australia. It is located 12 kilometres west of the Sydney central business district and is the administrative centre of the Municipality of Strathfield. A small section of the suburb north of the railway line lies within the City of Canada Bay, while the area east of The Boulevard lies within the Municipality of Burwood. North Strathfield and Strathfield South are separate suburbs to the north and south, respectively.
The suburb of Strathfield became a popular residential suburb in the late 19th and early 20th centuries. The building of Strathfield station, and its expansion into a major suburban, intercity and interstate station, with direct services to Sydney Central, Melbourne and Canberra, helped to make the suburb one of the most accessible in Sydney by rail. It was also close to major road and water transport routes. Members of Sydney's business elite, such as the family of William Arnott and David Jones, built various large homes in Strathfield. After federation, Strathfield continued to be favoured by business and political leaders, with prime ministers Earle Page, George Reid and Frank Forde all having lived in the suburb, and Billy Hughes lived in the part of "Strathfield" which is now Homebush South. Page, for example, chose to live in Strathfield because of its direct rail services to Melbourne, then the seat of federal parliament, and his electorate on the north coast of New South Wales. Some of the large homes built in this period were purchased by private schools, and the unusually large number of private and public schools in the one suburb further increased residential demand.
Following the introduction of the Local Government Act in 1919, Strathfield Council was one of the first to proclaim the major part of its area a residential district by proclamation in 1920. Strathfield underwent suburban subdivision in the early 20th century, with more suburban houses on smaller lots being built rather than the substantial mansions with expansive grounds built in the earlier period. Nevertheless, it remained a popular residential area. In 1977, Strathfield was the most expensive suburb in metropolitan Sydney measured by median house price.
More significant commercial development took place in the last quarter of the 20th century, with a "modern" shopping centre, Strathfield Plaza, opening in 1981, accompanied by the first high rise residential apartment building in the suburb. More towers followed in the next few decades, concentrated around the station.