Quality scale (1–7)
1 = extremely low quality / poor workmanship
2 = economy build (entry-level materials)
3 = basic tract home (builder grade)
4 = average quality (typical resale)
5 = above average (upgraded materials)
6 = high-end custom (premium finishes)
7 = luxury estate quality

Condition scale (1–7)
1 = tear-down / unsafe
2 = major rehab
3 = rough but livable
4 = average / dated
5 = updated / well maintained
6 = fully renovated
7 = like new