Avenue Princesse Grace is the most expensive street in the world to buy property, where $120,000 (€84,985) will purchase just one square metre of prime real estate, according to a survey by Wealth Bulletin.

Prime residential property on the top 10 most expensive streets in the world saw their overall value fall by 12% in the last year, the survey found, with European streets faring better than their US and emerging markets counterparts.