In Iran, consumer price inflation reached 88.6 per cent in the year to June, while rents have climbed roughly 80 per cent since the start of the current round of regional conflict, according to the state statistical centre. In Brazil, the housing market is far calmer, but rents still rose 4.4 per cent in the first five months of 2026, outpacing the benchmark IPCA inflation rate of 3.2 per cent. Both cases illustrate a global pattern in which shelter costs are pulling away from broader price measures, tightening pressure on household budgets.

The mechanisms diverge but share a common thread: supply constrained by war and sanctions in Iran, and by low vacancy and heated demand in Brazil. Iran’s currency has halved in value over the past year, pushing construction material costs up 97 per cent and prompting banks to channel speculative liquidity into real estate, according to local estate-union officials. In São Paulo, commercial vacancy rates are near historic lows and residential towers are selling briskly despite double-digit interest rates, Brazilian market commentators note.

For households, the consequences are severe. Iranian labour activists report that housing now consumes 50 to 70 per cent of working-class incomes. A government-imposed cap of 25 per cent on annual rent increases has provoked a standoff: tenants say even that is unaffordable, while landlords argue it ignores far higher inflation in property values and maintenance. Brazilian families also feel the squeeze, though the absence of legal caps leaves adjustments to market negotiation, with analysts warning that the cost-of-housing burden is eroding purchasing power.

Policy responses are stretched. Iran’s rent ceiling lacks enforcement mechanisms, and market participants say it simply drives agreements off the books, undermining the stated aim of shielding the vulnerable. Brazil’s monetary authority has kept its Selic rate high to combat inflation, but that has done little to cool the housing sector, suggesting structural supply constraints rather than cyclical demand are at work.

The next milestones are the release of Iran’s consumer price data for the month of Tir, which traders will scrutinise for signs of accelerating or stabilising inflation, and the Brazilian central bank’s next policy meeting in early August, where further rate rises could amplify the affordability crisis in an already expensive mortgage market.