Detached house sale prices are on the rise nationwide, but the extent of the increase shows a clear gap by region. Seoul's Gangnam area and the capital region exceeded the national average, and among metropolitan cities, Daejeon's growth rate stood out.

According to KB Real Estate's October 2026 detached house sale price index change statistics, the national detached house sale price rose 0.208% from the previous month.

■ Seoul Led by Gangnam Area... 2.46-Fold Gap with Gangbuk

Seoul's detached house sale price rose 0.452%, a rate 0.244 percentage points higher than the national average (0.208%).

Even within Seoul, the difference between the Gangnam and Gangbuk areas was pronounced. The 11 districts of Gangnam rose 0.713%, while the 14 districts of Gangbuk rose only 0.290%. The gap between the two areas' growth rates was 0.423 percentage points, with the Gangnam area's rate about 2.46 times that of Gangbuk.

■ Capital Region Up 0.356%... Incheon Outpaces Seoul and Gyeonggi

The capital region's overall detached house sale price rose 0.356%, 0.148 percentage points higher than the national average.

By area within the capital region, Incheon rose 0.740%, surpassing Seoul (0.452%). Gyeonggi Province rose only 0.165%, and the gap between Incheon and Gyeonggi's growth rates was tallied at 0.575 percentage points.

■ Metropolitan Cities Also Rise... Daejeon Posts Largest Increase at 0.955%

The upward trend continued in metropolitan cities. The detached house sale price index for the six metropolitan cities rose 0.272%, and the five metropolitan cities excluding Incheon rose 0.215%.

Among individual metropolitan cities, Daejeon recorded the largest increase at 0.955%, a figure 0.215 percentage points higher than Incheon (0.740%). Busan rose 0.161%, Daegu 0.081%, and Ulsan 0.058%, while Sejong was tallied at 0.000%.

■ Other Provincial Areas Rise Only 0.057%... North Chungcheong, South Chungcheong, and Gangwon Flat

The detached house sale price growth rate in other provincial areas was 0.057%, below the national average. By region, North Jeolla Province rose 0.067% and North Gyeongsang Province 0.044%, while North Chungcheong and South Chungcheong Provinces each recorded 0.000% and Gangwon Province was also tallied at 0.000%.

■ Summary... Capital Region and Metropolitan Cities Rise, Provinces Stagnant

National detached house sale prices rose, but the scale of increase varied by region. Compared to the national average, Seoul at 0.452%, the capital region at 0.356%, and the six metropolitan cities at 0.272% all posted higher growth rates, while other provincial areas rose only 0.057%. In Seoul, the 11 Gangnam districts pulled up the overall growth rate, and in the capital region, Incheon's growth rate surpassed that of Seoul and Gyeonggi. Among metropolitan cities, Daejeon showed a relatively high growth rate at 0.955%, while Busan, Daegu, and Ulsan recorded growth rates below 0.2%. With the Gangnam area of Seoul and some metropolitan cities showing relatively large increases, regional differences in detached house sale prices were confirmed.

[The sale price index change rate reflects price index movements by region and may differ from the actual transaction price change rate of individual houses. This article was written with partial assistance from AI.]