Location
Buxton House is located in the South of Sydney City at address 79 Redfern Street, Redfern which is conveniently located between the Sydney Airport and the CBD.
Coming from the Airport take an UBER which should take around 15-20mins and your best and cheapest option with luggage. Cost will vary due to traffic.
Alternatively you can get a taxi or catch a train to Redfern train station which is equally as convenient.
See below Map for exact Location.
Safe travels!