By 
[Seoul, September 2026] — A comprehensive housing analysis released this month has identified a massive disconnect between rental rates and property valuations in several of the world's most prominent cities. The data indicates that in Seoul, the financial barrier to homeownership has reached an extreme level, making long-term renting a mathematically superior financial strategy compared to purchasing.
The research, which examines the intersection of median rents, average net salaries, and property values for standard 90-square-metre residences, introduces the concept of "forever renting." This metric calculates the theoretical number of years a tenant would need to pay rent before the cumulative total matches the current market price of a home.
Seoul Market Exhibits Extreme Valuation Gap
Seoul has emerged as the global outlier in this study, recording the most significant disparity between leasing costs and ownership prices. According to the findings, the median monthly rent in the South Korean capital sits at approximately $610. While this figure represents a manageable 17.2% of the average net salary for local residents, the cost of entry for homeowners is staggering.
A typical 90-square-metre home in Seoul is valued at roughly $2.6 million. When these two figures are compared, the study concludes that it would take 357 years of continuous rental payments to match the purchase price of the property. Beyond the price gap, the city offers a robust leasing market, with approximately 14,200 rental opportunities identified in the dataset, providing significant options for those opting out of ownership.
Bangkok and Vienna Face High Rental Burdens
While Seoul leads in the total duration of the rent-to-buy gap, Bangkok presents a different set of economic challenges. Ranking second in the study, Bangkok's median monthly rent is the lowest among the ten analyzed cities at approximately $359. However, this low absolute cost is deceptive; rent consumes 56.7% of the average net salary, indicating a much higher financial strain on the average resident.
With a 90-square-metre property estimated at $547,000, it would take roughly 127 years of rent to equal the purchase price.
Vienna ranks third globally, where the gap persists despite higher monthly costs. In the Austrian capital, the median monthly rent is approximately $988, which accounts for 27.9% of the average net salary. Given that a 90-square-metre home costs around $1.34 million, the rent-to-purchase period extends to 113 years.
Tokyo and Paris Housing Market Dynamics
Tokyo occupies the fourth position, demonstrating a more balanced but still skewed relationship between renting and buying. Monthly rent averages $698, representing 23.1% of the average net salary. The estimated price for a 90-square-metre residence is $805,000, meaning a tenant would need to rent for 96 years to match the property value.
Paris ranks fifth and serves as a critical hub for international residents due to its high volume of available housing. The study recorded approximately 17,600 rental opportunities in Paris, the highest number of any city in the report. Median rent in the French capital is $1,189, or 32.8% of the average net salary. With property values for a 90-square-metre home estimated at $1.34 million, the theoretical rent-to-purchase period is 94 years.
Comparative Analysis of Global Rental Markets
The study further analyzed five additional cities, revealing that high rental costs do not always correlate with an impossible path to ownership. Zurich, for instance, has the highest monthly rent in the group at $2,469, yet its property values—while high at $2.5 million—do not create as extreme a gap as seen in Seoul.
| City | Median Monthly Rent | 90sqm Property Price | Rent-to-Buy Period (Years) | Rent as % of Net Salary | Rental Availability |
|---|---|---|---|---|---|
| Seoul | $610 | $2,600,000 | 357 | 17.2% | 14,200 |
| Bangkok | $359 | $547,000 | 127 | 56.7% | N/A |
| Vienna | $988 | $1,340,000 | 113 | 27.9% | N/A |
| Tokyo | $698 | $805,000 | 96 | 23.1% | N/A |
| Paris | $1,189 | $1,340,000 | 94 | 32.8% | 17,600 |
| Singapore | $2,187 | N/A | 80 | N/A | N/A |
| Helsinki | N/A | N/A | 80 | N/A | N/A |
| Stockholm | N/A | N/A | 79 | N/A | N/A |
| Munich | N/A | N/A | 77 | N/A | N/A |
| Zurich | $2,469 | $2,500,000 | N/A | N/A | N/A |
Impact on Global Mobility and Urban Living
The divergence between property values and rental costs is reshaping how international professionals and long-stay visitors approach urban relocation. For digital nomads and expatriates, cities like Seoul and Paris offer a distinct advantage where the cost of living via rental is decoupled from the unattainable cost of property ownership.
This economic shift suggests that renting is no longer merely a transitional phase for young professionals but is becoming a permanent lifestyle choice. In markets where the rent-to-buy period exceeds a century, the traditional "property ladder" is effectively broken, forcing a reliance on the rental sector for long-term stability.
Why This Matters (Information Gain & Experience)
For the modern traveler or expatriate, these figures reveal a critical strategic insight: the "cost of living" is a misleading metric if it only focuses on monthly expenses. The real story lies in the relationship between income, rent, and equity.
From a logistical standpoint, the massive gap in Seoul suggests that those relocating to South Korea should prioritize flexible rental agreements over any attempt at real estate investment, as the capital required for entry is disproportionately high compared to the yield provided by rental savings. Conversely, in Bangkok, while the "buy-in" price is lower, the monthly burden on local salaries is significantly higher, meaning liquidity is tighter for the average resident.
For the long-term visitor, this data highlights that cities with high rental availability, such as Paris, offer more leverage to the tenant. When availability is high and the gap between renting and buying is wide, tenants can maintain a high quality of life without the crushing debt associated with modern urban mortgages. This creates a "rental sanctuary" effect where the financial risk of leasing is far lower than the risk of holding an overpriced asset in a volatile market.
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