Observed arrival · 2026-10-11
그땐 얼마? — What Did It Cost Then?
An interactive tool for comparing Seoul and Gyeonggi apartment transaction prices across complexes that had similar prices in a selected year.
○Open
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$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Seoul and Gyeonggi apartment buyers comparing past prices
- Worth noticing
- If a reference month has fewer than five trades, the tool widens its window to three months, then falls back to the annual median.
Field notes
Users can start from a complex or enter a price and select a year or month, then compare properties across Seoul and Gyeonggi. The reference-price method widens from a one-month window to three months when fewer than five transactions are available, then uses the annual median. The page also warns that, without unit-level information, it cannot distinguish repeat sales of the same apartment or determine an individual unit’s last purchase price or gain.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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