Rising housing prices and a 2005 real-estate tax law shifted voters in Seoul’s Gangnam area from Democratic to conservative parties [1].
This political migration highlights how property ownership and tax policy can redefine voter loyalty in South Korea's most affluent districts. The transition turned historically Democratic-leaning areas into reliable bastions for the right, altering the electoral map of the capital.
The conservative shift in Gangnam began around 1996 [1]. However, the trend accelerated following the introduction of the comprehensive real-estate tax in 2005 [1]. This tax was perceived by many residents as a decisive blow, pushing middle-class voters toward conservative parties that promised lower taxes and property-friendly policies [1].
For some residents, the tax felt like an attack on their ability to remain in their homes. One anonymous Gangnam-gu resident said, "I am living on a pension after retiring; this is basically telling me to sell my home and move to the countryside" [1].
The impact of this shift became evident in the 2010 Seoul mayoral election, where the "Gangnam 3-gu"—comprising Gangnam-gu, Seocho-gu, and Songpa-gu—provided overwhelming support to O Se-hoon [1]. This trend continued over the following decade, expanding the conservative footprint beyond the immediate Gangnam core [1].
Within a 10-year period following 2010, the conservative vote rose to a fifth-place ranking in Seongdong-gu [1]. During that same window, the Democratic Party lost its lead in Mapo-gu to the People Power Party [1]. These shifts suggest that the perception of wealth protection has become a primary driver of political affiliation in Seoul's urban center.
“The 2005 comprehensive real-estate tax was seen as a decisive blow that pushed middle-class voters toward conservative parties.”
The political evolution of the Gangnam 3-gu demonstrates a correlation between asset appreciation and conservative alignment. When property becomes the primary vehicle for wealth, voters often prioritize tax mitigation over other ideological concerns, making real-estate policy a central pillar of South Korean electoral strategy.
