15,000 Apartments with 500% Floor Area Ratio Near the National Assembly

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The title is 'A Proposal for Supply: Just Do It'
Move the least productive institutions in Seoul to Sejong and develop the National Assembly site in Yeouido with high density.
With a 100,000-pyeong site and a 500% floor area ratio, the total floor area would be 500,000 pyeong; if built primarily with 20–30 pyeong units, that's 15,000 apartments.
This would be a viable solution that requires no US military base withdrawal, no soil remediation, and no negotiations with stakeholders—all you'd have to do is move the politicians who scream about balanced national development to Sejong.