Memorize this: The Han River Belt consists of these three major real estate leaders.

Do you still think Jamsil is just a minor player in Songpa?
About 10 years ago, you would have been right.
But the world has changed.
The upward trend in Jamsil is too steep.
The gap between it and Gaepo has become insurmountable,
and now it is overtaking Daechi and Dogok. (It is incomparable to other "minor Gangnam" areas like Seocho or Bangbae)
The Han River Belt, connecting Banpo - Apgujeong - Jamsil, will become the representative top-tier real estate locations.
Just memorize it.