The same country, two housing markets moving in opposite directions. Seoul apartment prices keep climbing—recently at a widening weekly pace—while the provinces are stacking up “toxic inventory”: finished homes that no one has bought. Under the Ministry of Land, Infrastructure and Transport’s May housing statistics, there were 65,239 unsold homes nationwide, and 46,638 of them—about 71%—sat outside the capital region. Today we look at why this “one roof, two markets” split formed and what cards the government is weighing. 🏠

TL;DR

  • 📌 End-May unsold homes nationwide: 65,239 units (+0.1% from 65,179 in April), with the provinces accounting for the bulk at 46,638
  • 📌 “Post-completion unsold” homes—built but still empty—totaled 29,350 units, of which 24,522 (83.6%) were outside the capital region
  • 📌 Seoul and the capital region show the opposite: buyers are piling in, prices are rising, even as unsold counts there tick up—deepening the regional gap
  • 📌 The government is expected to include a one-year extension of the provincial “single-home” tax exception for post-completion unsold homes in its late-July tax reform

📊 What the Numbers Say — 65,000 Unsold Nationwide, 71% in the Provinces

The core of May’s data is “flat in total, but tilted toward the provinces.” Per the ministry’s May statistics, unsold homes nationwide came to 65,239 units at month-end—up just 0.1% from April’s 65,179, essentially flat.

  • Provinces vs. capital region: Provincial unsold homes fell 2.6% to 46,638 units but still made up about 71% of the national total. The capital region moved the other way, rising 7.5% to 18,601. The provinces are clearing slowly while the capital region builds up—opposite directions.
  • Regional burden: Within the provinces, Busan (about 8,292 units) and South Chungcheong (about 8,213) carried some of the heaviest unsold volumes.
  • Weaker transactions: Nationwide home sales came to 66,490 in May, down 4.7% from April, with demand softness led by the provinces.

🏚️ Why “Toxic Inventory” Matters — 29,000 Post-Completion Unsold Homes

The figure to watch most closely is “post-completion unsold” homes. These are finished and move-in ready yet still without an owner, which is why they are called “toxic inventory”—they weigh directly on builders’ cash and the local economy.

Post-completion unsold homes came to 29,350 units in May, down 0.5% from April. The modest decline masks the real issue: regional concentration. Of that total, 24,522 units—83.6%—were outside the capital region. In other words, many provincial complexes struggle to clear even after price cuts or discounts. By contrast, post-completion unsold homes in the capital region actually rose 11.3% to 4,828, showing that even within the capital region, outcomes diverge by location.

🧱 Why the Split — Seoul’s Surge Met a “Completion Cliff”

The polarization stems from demand concentration colliding with a supply lag. Demand crowds into Seoul and prime capital-region locations, while the pipeline of new apartments about to be completed is shrinking fast—widening the gap between the two markets.

  • Concentration in Seoul and the capital region: By the Korea Real Estate Board’s index, Seoul apartment sale prices have kept rising, recently at a widening weekly pace. Even in designated regulated zones, buyers concentrate on preferred complexes near transit hubs and large developments.
  • Completion cliff: Nationwide housing completions in May came to 12,913 units, down 51.0% from a year earlier—66.9% in the capital region and 26.3% in the provinces. Fewer new move-ins sharpen the scarcity of established preferred areas, a force that pushes prices up.
  • The provincial oversupply hangover: In the provinces, homes from past waves of concentrated sales are reaching completion, and inventory lingers where demand has failed to keep pace.

In short, Seoul is a market of “plenty of buyers but scarce new supply,” while the provinces are a market of “supply on hand but too few buyers.”

🏛️ How the Government Responds — Late-July Tax Reform and a Provincial Extension

The response is being shaped in two directions: “tighten the capital region, prop up the provinces.” Deputy Prime Minister and Minister of Economy and Finance Koo Yun-cheol said he would unveil a property tax reform plan late this month. President Lee Jae-myung has also signaled a real-estate discussion forum on the 23rd.

  • Aimed at the capital region and multiple-home owners (under review): The tax overhaul is being discussed under a residence-first principle—that a home is a place to “live,” not to “buy.” For the comprehensive real estate (holding) tax, the idea floated is to raise the fair-market-value ratio (currently 60%) in stages via enforcement decree rather than lift rates; for the capital-gains long-term holding deduction, to shift the basis from “holding period” to “actual residence period.” None of this is finalized or in effect yet.
  • Propping up provincial unsold homes: The government is expected to include in its tax bill a one-year extension—from end-2026 to end-2027—of the capital-gains and holding-tax exceptions for buyers of post-completion unsold homes outside the capital region. Under the current rule, a single-home household that additionally buys a post-completion unsold home outside the capital region (exclusive area of 85㎡ or less, acquisition price of 700 million won or less) still keeps its single-home status—preserving exemptions up to 1.2 billion won of transfer value and a long-term holding deduction of up to 80% when selling the existing home. A second-home exception for population-declining areas is also set to be extended.
  • Supply support: Building on the previously announced plan to supply about 41,000 non-apartment units in the capital region, the government aims to expand urban-type housing and officetels on small in-city plots to ease near-term supply anxiety.

✍️ The Takeaway — One Country, Two Markets, and Two-Track Policy

The housing market is now split by region to the point that a “national average” tells you little. Prime Seoul and capital-region areas rise on buyer concentration amid the completion cliff, while the provinces stay cold as post-completion unsold homes pile up.

Three points to watch. First, how the late-July tax reform actually reworks the comprehensive real estate tax’s fair-market-value ratio and the long-term holding deduction. Second, how much the provincial post-completion unsold exception—once extended—actually reduces toxic inventory. Third, how capital-region supply and demand realign as the completion cliff feeds into supply two to three years out. When the same word “real estate” feels opposite depending on where you live, the moment calls for reading regional flows separately rather than a single national gauge.

※ This article is for informational purposes only and is not investment advice.

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