Toowoomba's CBD (Ruthven Street, Margaret Street, and the Russell Street government precinct, centred on the extraordinary heritage Post Office building and the Empire Theatre) is Queensland's largest and most significant inland commercial centre, serving as the commercial, administrative, and professional services hub for the Darling Downs, the Maranoa, and the broader south-west Queensland agricultural region. The Darling Downs's agricultural economy (cotton, grain, vegetables, and livestock) is one of Australia's most productive and most internationally traded, making Toowoomba's commercial district the banking, legal, insurance, and professional services centre for a region that generates billions of dollars in agricultural export income annually. The Toowoomba Wellcamp Airport (Australia's only privately funded and operated major commercial airport) and the growing Wellcamp Business Park represent the most significant commercial infrastructure investment in Toowoomba's history.
Ruthven Street and the Commercial Core — Ruthven Street (Toowoomba's main commercial street, running north-south through the CBD) provides the heart of the city's commercial activity, with the Grand Central Shopping Centre (Toowoomba's major retail anchor, recently expanded), the major bank branches, and the professional services firms serving the Darling Downs agricultural and business community. The extraordinary heritage commercial buildings on Ruthven Street and the adjacent streets (many dating from Toowoomba's 1890s agricultural wealth) provide a particularly fine heritage commercial streetscape that is increasingly being recognised as a significant Toowoomba asset.
Wellcamp Airport and Business Park — the Toowoomba Wellcamp Airport (11km west of the Toowoomba CBD) is Australia's most significant regional airport infrastructure investment of the past decade, with the privately funded airport (built by the Wagner family of Toowoomba at a cost of approximately $200 million) providing cargo and commercial aviation services that have dramatically improved Toowoomba's air connectivity. The adjacent Wellcamp Business Park provides significant industrial and commercial land for businesses requiring proximity to air cargo facilities.
