A house is read as a stand-in for the self, or for your family's foundation, in both Korean tradition and dream psychology more broadly — a house is where you're supposed to feel safest and most stable, which is exactly why dreams use it to represent your underlying sense of security.
Moving into a new, bigger, or nicer house is read as expanding fortune or status — genuine growth, not just a change of scenery. A house falling apart, cracking, or showing structural damage is read as instability in your foundation, whether that's your finances, your family, or your own sense of stability, echoing the same underlying logic as an earthquake or landslide dream elsewhere on this site, but scaled to something more personal.
Discovering a new room in an otherwise familiar house is read favorably — an unrecognized part of yourself, or an opportunity you hadn't noticed, existing right alongside what you already knew was there. A house fire connects directly to the fire dream elsewhere in this category: destructive on its face, but traditionally read as burning away old trouble to make room for something new.
An empty or abandoned house is read as neglect — something in your foundation, whether a relationship, a habit, or a responsibility, that's been left unattended for too long.