Form factor
壁刀 / Wall blade
金 / Metal
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Tradition and practical correlate
Whether a neighbour’s wall edge cuts toward the home (壁刀煞) like a cleaver — a close facade edge that also presses on light and outlook.
What the tool checks
Whether nearby building edges or corners point toward the home in available map and listing context.
What you can verify in person
See the edge from the entry and check daylight, outlook and the actual distance.
Confidence and limits
The form can be screened, but map detail may not show height, setbacks or the lived view.