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Past summits have resulted in high-profile discussions on a wide range of policy areas, from climate change to tax evasion.
Collectively, G20 economies account for approximately 85% of gross world product and two-thirds of the population. But how does the value of their leaders' residences compare?
Property website Hatched took a look at each G20 leaders' residence and created a valuation index based on a wide range of factors. These included the size of the property, any recent published refurbishment costs, and the local city's average property price per square metre. The valuation did not take into account the historical significance of the building.
Take a look at the 13 most valuable G20 leaders' residences.