The loan index, which indicates the ratio of mortgage registrations in collective building transactions, varies significantly across districts in Seoul, with Eunpyeong District recording the highest and Gangnam District the lowest.
According to an analysis by the real estate information app Zipum on data from the Supreme Court's registration information portal, the average loan index for collective buildings in Seoul's 25 districts in July was 50.47. This marks a decrease of 3.34 points compared to the same month last year (53.81) and a drop of 1.52 points from June (51.99).
The loan index is calculated based on the ratio of the amount of mortgages registered to the transaction amount of collective buildings where sales and mortgage registrations occur simultaneously. The actual loan amounts may differ.
In July, the highest loan index was recorded in Eunpyeong District at 60.17, followed closely by Geumcheon District at 60.12, Nowon District at 57.75, Dobong District at 57.32, and Guro District at 57.18. In contrast, Gangnam District had the lowest index at 32.54 among the 25 districts.
Following Gangnam, Songpa District recorded 36.02, Seongdong District 36.42, Seocho District 36.66, and Gangdong District 42.91, all falling in the lower range. The gap between the highest index in Eunpyeong and the lowest in Gangnam reached 27.63 points.
Month-to-month changes also showed mixed movements among districts. Compared to June, 10 districts saw an increase in their loan indices, while 15 experienced a decline. Eunpyeong District had the largest increase, rising 4.48 points from 55.69 to 60.17. Jongno District increased from 49.68 to 52.69, a rise of 3.01 points, and Dobong District rose from 55.18 to 57.32, an increase of 2.14 points.
Conversely, Seocho District experienced the largest drop, plummeting 14.73 points from 51.39 to 36.66. Yeongdeungpo District fell from 52.64 to 47.03, a decrease of 5.61 points, and Jungnang District dropped from 60.04 to 55.31, down 4.73 points. Songpa and Gangnam Districts also saw declines of 4.01 points and 3.25 points, respectively.
Compared to the same month last year, only Eunpyeong District saw an increase in its loan index, rising 0.28 points from 59.89 in July of last year to 60.17 this July. In contrast, Songpa District fell 14.72 points from 50.74 to 36.02, Seongdong District dropped 11.82 points from 48.24 to 36.42, and Gangdong District decreased 10.81 points from 53.72 to 42.91. Gwanak District also fell from 62.09 to 51.59, a drop of 10.50 points.
There were also differences between the average and median values by district. In July, Eunpyeong District had an average loan index of 60.17 and a median of 60.58, with the median being 0.41 points higher. Geumcheon District had an average of 60.12 and a median of 63.90, a difference of 3.78 points. In contrast, Gangnam District's median was 25.49, which is 7.05 points lower than its average of 32.54. This indicates that the distribution of mortgage registration ratios varies across districts.
A representative from Zipum stated, "In July 2026, the loan indices for collective buildings were highest in Eunpyeong at 60.17 and Geumcheon at 60.12, while Gangnam had the lowest at 32.54. Eunpyeong saw an increase of 4.48 points from the previous month, while Seocho experienced a drop of 14.73 points, highlighting the varied changes across regions."
Additionally, an analysis of the transaction turnover rate for collective buildings by Zipum on data from the Supreme Court's registration information portal revealed that in July, Eunpyeong District had the highest turnover rate at 0.72%, followed by Jungnang District at 0.65%, Gangbuk and Gwangjin Districts at 0.47%, and Dongdaemun District at 0.45%.
* This article has been translated by AI.
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