Where is the mission australia office in sydney? Mission Australia National Office. HSBC Building, Level 7. 580 George Street. Sydney NSW 2000. PO Box 3515, Sydney NSW 2001. 02 9219 2000.How do i get a referral to mission australia? For referrals to Mission Australia’s accommodation services, contact your relevant state-based information and referral services directly: VIC – Crisis Accom. Service We encourage anyone to make ask questions, provide feedback or make a complaint about our services. Please select the service area below.How can i contact mission australia housing for further information? For further information on housing programs operated by Mission Australia Housing, please contact us at the details below: P: 1800 269 672Is mission australia a limited company? Mission Australia is a limited by guarantee, company licensed under section 383 of the corporations act 2001 to omit limited from its name, Australian public company. This corporation was registered on 1901-12-31 and was issued with the 000002522 ACN. Its Australian Business Number is 15000002522.