How Much Rent Is Too Much? The 30% Rule in Practice for Tehran’s Tenants

At the start of July, a new report from the Tehran Real Estate Board laid bare the financial strain facing the city’s renters: more than half of tenant households now spend over 40 percent of their monthly income on rent, far above the internationally recognized '30% rule' that’s long been a yardstick for affordability.

This finding lands at a tense moment. With Ayatollah Khamenei’s funeral last week drawing enormous crowds—and sharp political divisions—Tehran’s everyday economic pressures risk being overshadowed. Yet behind the headlines, rent remains a daily stress for millions, and the impact is quietly reshaping life across the capital.

District-by-District, a Search for Stability

Nowhere is this more acute than in two strikingly different parts of the city. In Yusef Abad, a central neighborhood bordering Valiasr Street and close to the city’s booming tech sector, landlords this spring pushed average rents for a modest two-bedroom above 45 million tomans per month, according to data from Zamin24, an online property platform. Out in Ekbatan, where expansive 1970s apartment blocks once promised affordable living for middle-class families, tenants reported renewals surging by up to 35% in a single year.

These rising costs ripple into every aspect of local life. Salaries for a mid-level manager at one of Tehran’s major insurance firms on Taleghani Street average less than 70 million tomans per month, according to listings from job search site IranTalent. For these households, sticking to the 30% threshold means a monthly housing budget of no more than 21 million tomans—a figure increasingly out of step with the available listings in many districts.

The Numbers Behind the Crunch

The roots of the squeeze are clear in Bank Melli Iran reports. From June 2024 to June 2026, the average rent for a two-bedroom apartment in central Tehran jumped from 22 million tomans to 37 million, a 68% increase in just two years. Over the same period, government data shows that average monthly household incomes citywide grew by only 38%. That gap forces more renters to devote outsized portions of their earnings to secure or hold onto a home.

Tehran’s Municipality attempted to address the crisis in late 2025 with its Urban Rental Support Plan. So far, the program’s zero-interest loans (up to 100 million tomans dispersed across more than 35,000 applicants, per Municipality estimates) fall well short of tamping down market demand or slowing price hikes.

For buyers, the equation is even tougher. In traditionally affordable Shahr-e Rey, the capital investment for an 80-square-meter flat now sits at just below 7 billion tomans, according to Rahnama, a leading Tehran property brokerage—roughly 12 years of median pre-tax family income, even before factoring in loan interest or inflation risk.

Staying Within Bounds—or Breaking Them

The financial calculation for renters is increasingly stark. For those working in major employment zones anchored by sites like Azadi Sports Complex or corporate towers in Sa'adat Abad, rental budgets often fall short of what’s needed to live nearby. Some families are taking in boarders or pooling incomes with extended relatives—a shift reminiscent of post-1988 housing patterns, but rarely seen in more recent memory.

Advice from property managers at Tehran’s housing associations is blunt: check not only gross salary, but reliable net income after taxes, insurance premiums and inflation. Tools like the online affordability calculator recently launched by CBI (Central Bank of Iran) can help tenants simulate monthly costs, but market realities mean most are stretching well beyond the 30% rule for now. The consensus: in practice, 40% has become the new norm—until policy, salaries, or supply catch up.

City planners at the Municipality suggest the upcoming 2027 rent control hearings may force stricter caps, especially in Districts 2, 5 and 12, where tenant distress is most acute. For now, Tehran’s renters must weigh every decision, check their numbers, and—if possible—negotiate hard. In the city’s current heat, that’s no small feat.