The British Consulate General in Sydney is located on Macquarie Place in the Gateway Building. The nearest train station is Circular Quay.
British Consulate General
1 Macquarie Place
Sydney, NSW 2000
Phone: (02) 9247 7521
Fax:(+61) (0) 2 9251 6201
General opening hours are from 9:00am to 12:30pm and 1:30pm to 5:00pm Monday to Friday. Consular opening hours are from 10:00 am to 12:30pm and 1:30p to 3:00pm.
You can find more details and information on the official website.