Sydney, Australia, is definitely on something of a roll. Prices rose steeply here last year and are predicted to continue their upward trajectory in 2015, no doubt gaining momentum from buyers taking advantage of the Significant Investor Visa, which enables those spending over A$5m (about £2.5m) to become permanent residents in just 12 months. Anyone thinking of a life here long term might like to consider Elaine(through Christie’s International Real Estate, www.christiesrealestate.com; offers in excess of about £40m), one of the most significant residential estates ever to be sold Down Under. Built in 1863, the seven-bedroom property has been owned by one of the country’s leading newspaper dynasties, the Fairfax family, for the past 120 years. With a ballroom, tennis courts, stables, balcony views of Sydney Harbour and rolling lawns down to the Seven Shillings beach, Elaine would definitely be somewhere worth settling for.