Portugal, Canada, and the United States were the countries with the highest house price to income ratio in 2024. In all three countries, the index exceeded 130 index points, while the average for all OECD countries stood at 116.2 index points. The index measures the development of housing affordability and is calculated by dividing nominal house price by nominal disposable income per head, with 2015 set as a base year when the index amounted to 100. An index value of 120, for example, would mean that house price growth has outpaced income growth by 20 percent since 2015. How have house prices worldwide changed since the COVID-19 pandemic? House prices started to rise gradually after the global financial crisis (2007–2008), but this trend accelerated with the pandemic. The countries with advanced economies, which usually have mature housing markets, experienced stronger growth than countries with emerging economies. Real house price growth (accounting for inflation) peaked in 2022 and has since lost some of the gain. Although, many countries experienced a decline in house prices, the global house price index shows that property prices in 2023 were still substantially higher than before COVID-19. Renting vs. buying In the past, house prices have grown faster than rents. However, the home affordability has been declining notably, with a direct impact on rental prices. As people struggle to buy a property of their own, they often turn to rental accommodation. This has resulted in a growing demand for rental apartments and soaring rental prices.

Buenos Aires, Argentina, was the least affordable city in South America in the first half of 2022 to buy an apartment. The ratio measures the number of years needed for a two-earner household where one person works full time and one person works half-time to buy a 90-square meter apartment. It assumes the property has the average square meter price for the city and that home buyers earn the average net salary. Montevideo, Uruguay, was one of the most affordable cities, where it took about nine years to buy an apartment.

The price of tap water in the United States varied greatly from city to city in 2021. One of the most expensive cities for tap water in the U.S. is San Francisco, where one cubic meter costs an average of **** U.S. dollars per cubic meter. In comparison, citizens in the Arizona state capital of Phoenix paid, on average, **** U.S. dollars per cubic meter. This is roughly ** percent lower than the U.S. average. Rising water bills in the U.S. Over the past decade, water bills in the U.S. have increased considerably in a number of major cities. In Austin, Texas, water bills rose by *** U.S. dollars between 2010 and 2018, an increase of *** percent. The sharp rising costs has left many in the United States with unaffordable water bills, especially in low income areas in cities such as New Orleans, Cleveland, and Santa Fe. U.S. water crisis One of the reasons for the rising water bills in the U.S. is the aging and deteriorating water infrastructure. In addition to rising bills, outdated treatment plants with leaking pipes have resulted in harmful toxins and chemicals contaminating drinking water. A number of highly populated cities in the U.S. have been found to have high concentrations of PFAs in tap water, exposing millions of people to potentially unsafe drinking water.