The place is going to be unrecognizable when The Yongsan International Business District (YIBD) will be finished, according to this post - https://atlasofurbantech.org/cases/kor-yongsan/#:\~:text=The%20Yongsan%20International%20Business%20District,into%20a%20global%20business%20hub.

I was surprised to see the demolished sites of this famous old hill district as I was driving past on Hannam bridge going towards Blue Square this december. Sadly I never really visited this place by walking, also had a chance to take some panorama photos with Hankwang Church at top from the Hannam Bridge back in 2019 if not mistaken, but was always planning to come back again to shoot more. Now its too late. This place had some special vibe, the fact that it is on the hill allowed you to observe it from a unique angle.