[Home Tech] The Implications of a 5.56% Officetel Yield

Officetel Yields in Seoul Have Risen for 48 Consecutive Months
Cash Flow Improvement Driven by Rising Rents
Profitability in the Five Major Cities Boosted by Falling Sales Prices
Important to Distinguish Returns by Rent Growth Versus Asset

Editor's NoteOver 70% of household assets in Korea are tied up in real estate. Homes are not only our most significant asset, but also our closest and coziest personal spaces. While so many people find themselves tied to their homes, we provide essential information about buying and selling properties. The Asia Business Daily, in collaboration with Hyoseon Kim, Chief Real Estate Specialist at KB Kookmin Bank, publishes [JipTech] every three weeks to offer you the knowledge you need.

According to KB Kookmin Bank’s monthly officetel statistics, the nationwide rental yield in August 2026 reached 5.56%, with the five major metropolitan cities at 6.64%, and Seoul at 4.98% — all marking record highs since the survey began. Notably, the rental yields in the nationwide, metropolitan, and Seoul areas have risen every single month for 48 consecutive months without a single downturn. Even as interest rates and sale prices have fluctuated, officetel rental yields have continued to move in one direction only. From an investment real estate perspective, officetels may seem like an especially attractive alternative right now. But is that really the case?

Put simply, the rental yield is calculated by dividing the rent by the sale price. When the rent rises, the yield goes up; if the rent stays the same but the sale price declines, the yield likewise increases. Therefore, when evaluating investment properties, it is crucial not only to look at the yield itself but also to understand why that yield was generated.

A sales notice attached to an officetel building in downtown Seoul. Yonhap News

Looking at regional changes over the past four years makes this picture even clearer. In Seoul, officetel sale prices in August 2026 have climbed 1.8% compared to August 2022. Given that the denominator (the price) has increased, a decrease in yield would be expected. Yet, Seoul’s rental yield actually rose from 4.30% to 4.98%, a jump of 0.68 percentage point. If both prices and yields have climbed, it means rents have risen much faster than sale prices.

In fact, the annual rent as calculated based on the yield and sale price increased by about 17.9% during the same period — nearly ten times the rate of price growth. Thus, Seoul’s nearly 5% yield is not a result of falling prices, but is instead an indication of improved cash flow driven by rising rents.

The five major metropolitan cities showed a different pattern. Over the same timeframe, sale prices declined by 6.5%, while the converted rent rose by only 5.9%. Although the rental yield increased from 5.86% to 6.64%, up by 0.78 percentage point, more than half of this increase was not due to higher rents, but rather to falling sale prices. Looking at the sale price index, the five cities have remained below their year-earlier levels for 42 straight months since March 2023, and current prices are now 10.0% lower than their 2022 peaks.

Seoul Officetel Cluster Area. Yonhap News

Therefore, it is difficult to interpret the five major cities’ 6.64% yield simply as the highest in the country. The background for these high yields involves both rising rents and changes in asset prices.

This difference becomes even more important when considering long-term investment performance. In Seoul, rising rents have boosted yields, whereas in the five major metropolitan cities, both rent increases and declining sale prices have contributed to higher yields. As such, when comparing the investment appeal of these two areas, it is essential to look not just at current yields, but also at the movement of both rents and property values. A high yield alone does not necessarily mean high investment returns, as the meaning of the yield will vary depending on what is driving it.

Recently, the interest rate variable has once again become significant. The Bank of Korea raised its base rate in July for the first time in three and a half years, then raised it again in August, while major banks’ 1-year time deposit rates have returned to the 3% range. The gap between officetel rental yields and the benchmark interest rate has narrowed from about 2.9 percentage points at the end of 2025 to 2.6 percentage points now. At this stage, not only rent (the numerator of the yield) and price (the denominator), but also the cost of financing must all be considered together.

In Seoul, where rents continue to rise, there may be room to offset interest rate hikes with rent increases. On the other hand, in regions with limited rent growth, increases in financing rates are more likely to erode investment returns. This is particularly true for investors leveraging loans: the closer the loan interest rate gets to the nominal yield, the faster your actual net profit is whittled away.

Therefore, when assessing investment returns in officetels, it is more important to calculate what actually remains after accounting for the financing rate, vacancy rate, and maintenance fees than to focus on the nominal rental yield alone.

So, what should the market and policymakers do next? First, officetel rental yield statistics should clearly distinguish between rent factors and price factors. Market participants should be able to see whether a 5% yield is the result of rising rents or falling prices before making an investment decision. At present, it is difficult to discern the difference from a single yield figure.

Second, rather than continuing to temporarily extend policies such as whether officetels are counted in housing numbers or special acquisition tax rates, such policies should be reorganized into systems with explicit criteria, such as based on size or price. If transactions become concentrated every time a policy sunset approaches, it undermines policy predictability and increases market distortion.

Third, a different approach is needed for regional metropolitan cities compared to the capital area. The 42-month price decline cannot be explained only by shrinking demand; it is likely that accumulated supply pressure also plays a role. New exit strategies, such as converting usage or remodeling existing small officetels, should be developed even as the pace of new project approvals is adjusted.

Officetels are still one of the most accessible forms of investment real estate for Korean households. This makes it all the more important to examine trends in both rents and asset values, rather than just focusing on the “5%” figure.

Hyoseon Kim, Chief Real Estate Specialist, KB Kookmin Bank Star Advisory Group

This content was produced with the assistance of AI translation services.