Real-Time Issue · May 22, 2026

Eunma Apt Rebuild Cost Bomb — ₩470M Extra for Standard Unit, ₩9.7B for Penthouse

Why Costs Exploded / 5 Investment Strategies with Stop-Loss Levels

Full Cost Table by Unit Size — How Much Must You Pay?

The Eunma Apartment reconstruction association has disclosed additional cost contributions by unit size. An owner of a 84㎡ unit (the standard “national floor plan”) who wants to receive the same size in the rebuilt complex must pay an additional ₩470M. That is a fourfold increase from the ₩117.66M estimate published in early 2023. The 109㎡ unit requires ₩939.41M extra; the large 286㎡ penthouse tops out at ₩9.73B. Owners who downsize to a 59㎡ unit receive a refund of up to ₩570M.

3 Structural Reasons Costs Exploded

Three structural forces drove the fourfold cost increase in three years. ① Construction cost surge: per-pyeong costs rose from ₩5.5M (2020) to ₩7M (2023) to ₩9M (2025), a 63.6% increase. ② Expanded public contribution: 1,104 of 5,893 units (18.7%) are allocated to the public, increasing the burden on regular association members. ③ Compounding labor and material inflation: ongoing construction inflation means costs could climb further if the ₩10M/pyeong threshold is crossed.

Eunma Apartment Rebuild Overview

Eunma Apartment, built in 1979, currently stands at 14 stories with 4,424 units. The rebuilt complex will rise to a maximum of 49 stories with 5,893 units, enabled by transit-zone floor-area-ratio incentives. Seoul Mayor Oh Se-hoon has publicly committed to a 2030 groundbreaking, but management and disposition plan approval, resident relocation, and demolition must all come first — making 2032 or later the realistic move-in timeframe. A project nearly 30 years in the making is now finally within sight.

How Rebuild Cost Contributions Are Calculated

The core formula is straightforward: Contribution = Member Allocation Price – Rights Value. Rights value is based on the appraised value of the existing unit. When construction costs rise, the member allocation price rises, and so does the contribution. If costs reach ₩10M per pyeong, contributions could climb by tens of millions more per unit. Understanding this formula explains why contributions continue to grow structurally — and why the current figure is almost certainly not the final one.

Comparison Across Major Seoul Rebuild Projects

Eunma’s confirmed ₩470M for 84㎡ sits in the middle of the Seoul rebuild spectrum. Apgujeong Hyundai (preliminary) is estimated at ₩300M–₩700M; Banpo Jugong 1 (assumed) at ₩300M–₩500M+. Outer districts like Nowon and Dobong run ₩100M–₩300M; Gyeonggi Province projects ₩50M–₩200M. Gangnam-area projects consistently command higher construction standards and thus heavier cost burdens.

5 Investment Strategies for the High-Rebuild-Cost Era

Five strategies to navigate the era of ballooning rebuild costs: ① Hyundai E&C (000720) — enter after confirming a Gangnam rebuild contract win; stop-loss at -8%. ② TIGER Real Estate Infrastructure High Dividend ETF (334700) — buy before quarterly ex-dividend, targeting 6–8% yield. ③ LX Hausys (108670) — enter after groundbreaking news; stop-loss at -10%. ④ Igis Value REIT (334890) — targets commercial properties near rebuild zones; exit at NAV -15%. ⑤ Direct unit purchase for own use — proceed only with full cash for the contribution confirmed; reassess if cost estimates rise.

Conclusion — Rebuild Investment Decision Guide

The disclosed contribution is a floor, not a ceiling. Costs are far more likely to rise than fall. Always verify the association’s official estimate before buying. Final checklist: ① Confirm the association’s official cost estimate document ② Calculate total outlay: contribution + relocation cost + acquisition tax ③ Verify you can tie up capital for 5–10 years ④ Confirm management and disposition plan status ⑤ Check whether the Transaction-Permit Zone owner-occupancy requirement applies ⑥ Reserve additional liquidity for further cost increases.

Sources: Bloomberg Reuters Korea JoongAng Daily