购房前的地基下沉核查
先看楼宇本身，再查地质及采矿历史。裂缝要由专业人士判读，因为楼龄、位置及移动模式都会影响结论。
天然地层移动
BGS 房产数据于 2026-07-23 更新，以 1 至 100 评估地基下沉易感度，并以 1 至 10 分别评估地质、地基、排水、楼宇类型、层数及附近树木。
- Factor score max
- 10
- Factor score min
- 1
- Score max
- 100
- Score min
- 1
British Geological Survey Property Subsidence Assessment dataset. updated 2026-07-23. 提取日期 2026-08-03.
How this was counted
Postcode district. building-level susceptibility score and six component factors.
煤矿地区
官方报告可显示房产边界 20 米内的矿井入口。报告由 £27 加增值税起，通常在 24 至 48 小时内提供。
- Mine entry distance m
- 20
- Starting price gbp ex vat
- 27
- Usual delivery hours max
- 48
- Usual delivery hours min
- 24
Mining Remediation Authority property check. live service verified 2026-08-03. 提取日期 2026-08-03.
How this was counted
Postcode district. current official search contents, starting fee and normal delivery window.
楼宇迹象
可请测量师检查阶梯状裂缝、门窗变形、近期修补及水平变化。如曾记录移动，应索取索赔及维修记录。
England and Wales
- Factor score max
- 10
- Factor score min
- 1
- Score max
- 100
- Score min
- 1
British Geological Survey Property Subsidence Assessment dataset. updated 2026-07-23. 提取日期 2026-08-03.
How this was counted
Postcode district. building-level susceptibility score and six component factors.
Coal-mining areas of the United Kingdom
- Mine entry distance m
- 20
- Starting price gbp ex vat
- 27
- Usual delivery hours max
- 48
- Usual delivery hours min
- 24
Mining Remediation Authority property check. live service verified 2026-08-03. 提取日期 2026-08-03.
How this was counted
Postcode district. current official search contents, starting fee and normal delivery window.
Sources and method
- British Geological Survey Property Subsidence Assessment dataset. updated 2026-07-23. 提取日期 2026-08-03.
- Mining Remediation Authority property check. live service verified 2026-08-03. 提取日期 2026-08-03.
如需指定地址的桌面核查，Property Diligence 付费报告会加入公开来源可提供的房产层级详细资料。